{
  "text": "相信大家對於九月這批\n新的 Mac mini 跟\nMac Studio,\n到底要買哪一台,買什麼規格\n都有很大的疑問\n我也一樣\n我打開購買頁排了一個下午\n越排越不確定\n因為官網把記憶體\nGPU 核心數\n跟記憶體頻寬\n分成三個地方寫\n你看得到每一個數字\n但看不到它們是連在一起的\n我先給你其中一個結論\n你等一下就知道我在說什麼\n如果你跑代理的時候\n每一輪都要讀進很長的內容\n卻只回你一小段\n時間就可能主要花在處理輸\n入的運算上,不是花在吐字\n這一段主要看算力\n所以模型裝得下、吐字很快\n都不代表你按下\n送出之後不用等\n這支影片就是要幫助你\n選一台適合自己的規格\n先把買之前必須\n知道的那幾個規格,各\n自卡住你什麼,講清楚\n然後你拿自己\n的使用情境去對\n你就抓得到最適\n合你的那個規格\n購買 mac 之前\n有兩件事情一定要先理解\n第一個叫什麼。預填充\n它會把你輸入的整段\n提示詞一次全部算完\n這一段算完之後\n它會把每一層算出\n來的中間結果存下來\n就是所謂的 KV cache\n第二個是解碼\n它開始一個字一個字回你\n每次吐一個字\n它都要把整份\nKV cache 從頭掃一次\n這兩件事卡在\n完全不同的地方\n預填充是一次算一大片\n主要靠算力\n解碼是一個字一個字來\n每次都要把資料整份搬過\n靠的是記憶體頻寬\n那麼..預填充為什麼會慢呢?\n因為你輸入越長\n它要算的量不是等比例增加\n是跟長度的平方走\n你貼一段程式碼進去\n那一段要先被讀完\n你才會看到第一個字\n這裡有一個大家最\n容易搞錯的地方\n多輪對話的時候\n前面所有的歷史\n會不會每一輪都重新算一次\n答案是不一定\n如果前面那一段一個\n字都沒變,KV cache\n可以直接沿用\nmac只算你這\n一輪新加的東西\n那什麼時候會失效\n有三種情況\n一中就是全部重算\n第一種是什麼\n你開了一個新的子代理\n那是一個全新的對話\n前面的快取一個字都用不到\n第二種呢\n工具回傳的結果被插進中間\n插入點後面的全部失效\n第三種呢\n你把程式關掉再打開\n本地跑的時候\n通常不會把快取留到下一次\n這個差別有多大\n有人拿同一台mac\n同一個模型量過\n快取全中的時候,等兩點九秒\n快取沒中要全部重算\n等八十二秒\n同一台mac,同一個模型\n差二十八倍\n差別只在前面\n那段有沒有動過\n所以你如果覺得同一台mac\n有時候很快有時候很慢\n那不是你的錯覺\n還有一個例子更直接\n有人測同一段長提示詞\n量到兩點九七秒\n覺得很快\n然後他自己發現那是快取\n命中,關掉重測,變成十七秒\n先說一件事\nMac 跟一般電腦差在哪\n差在它的記憶體是統一的\nCPU 跟 GPU 共用同一池\n所以規格表上那個記憶體\n數字,就是模型可以用的量\n這是 Mac 跑大\n模型真正的優勢\n在 Mac Studio 上\n你只要把記憶體選\n超過三十六 GB\n系統就會自動把你的\nGPU 換成貴一階的那顆\n頻寬從四百六十跳到六\n百一十四,價格多六百美元\n這不是加價選配,是你沒得選\n規格跟價格我整理成一張表\n放在畫面上,你暫停看就好\n我不念\n這一段如果幫你省掉在購買頁上\n來回猜的時間,順手按個讚\n讓這支片被更多正\n在選機器的人看到\n那把前面那兩件事套回\nMac,會是什麼情況\n預填充吃算力\n而算力一直是\nApple 這幾代的弱點\nM1 到 M4 這幾代\n只要你輸入的東西一多\n光是讀完就要等。要多久\n有數字\n有人拿 M3 Ultra 加\n五百一十二 GB 記憶體用了\n六個月,寫下他的實際體感\n簡單對話幾秒鐘就回\n這一段你不會有感覺\n請它改一篇七千字的文章\n等三十秒\n掛一個系統提示一萬\n六千字的 coding agent\n,等九十秒\n九十秒。在那九十秒裡\n畫面上什麼都沒有\n那台是 M3 Ultra\n記憶體頻寬已經是\n當時最高的一批\n頻寬那麼高為什麼\n沒有救到這一段\n因為這一段卡的不是頻寬\n那 M5 呢\nApple 去年十一月發過\n一份研究,拿 M5 對比 M4\n等第一個字出現的時間\n快了三點三到四倍\n這是很大的改進\n而且方向對\n他們加強的正好是算力\n那這個改進是哪裡來的\nM5 這一代在每一個\nGPU 核心裡面,加了一\n個專門算矩陣的單元\n叫做神經加速器\nApple 自己的說法是\n產生第一個字這\n件事被算力綁住\n而它完全吃得到神\n經加速器的好處\n換句話說\n你多花的錢買到的算力\n全部用在你按下送\n出之後那段等待上\n有多明顯\n有人拿同一台 M5\n同一個模型,只切這個開關\n讀取的速度從每秒\n兩百四十七跳到六\n百三十六,兩點五七倍\n吐字的速度從二十九點六\n到三十一,只有一點零五倍\n你注意一下這\n兩個數字的差距\n同一台機器同一個模型\n只換一個開關,一邊跳兩倍半\n另一邊幾乎不動\n這就是那兩件事\n真的分開的證據\n那買之前要注意\n什麼。有兩件\n第一,這個東西不是只有某一台有\nM5,M5 Pro,M5\nMax,M5 Ultra\n連 M6 都有\n所以它不是選型的差別\n你買哪一台都吃得到\n第二,有這個硬體是\n不是就自動用得到。不是\n要 macOS\n二十六點二以上\n而且軟體要支援才會啟用\n但要注意這是\nApple 拿自己比自己\n它沒有回答跟\nNVIDIA 差多少\n那個差距目前只\n有上一代的數字\n同一個模型同一段輸入\nM3 Ultra 要五點\n五七秒,NVIDIA\n那台小機器一點四七秒\n差三點八倍\n那 Mac Studio\n上面那顆最大的\nM5 Ultra 呢\n它九月二十二\n號才第一次出貨\n在那之前\n這顆晶片沒有人拿到過\n能追上多少\n要等出貨之後\n才有人測得出來\n那另外一半呢\n解碼跟頻寬\n解碼是一個字一個字產生\n每產生一個字\nmac都要把整份模型\n權重從記憶體讀進晶片一次\n所以它被什麼綁住\n記憶體頻寬\n頻寬翻倍\n吐字速度就接近翻倍\n所以跑分表上最常看到的那\n個數字,每秒幾個 token\n在 Mac 上為什麼會很好看\n就是這個原因\nM5 這一代吐字也有進步\n官方的數字是快百\n分之十九到二十七\n比起預填充那個三到四倍小\n很多,但你看跑分表的時候\n感覺是很直接的\n問題在這裡\n你日常真正在做的事\n決定你有沒有感覺\n你平常是哪一種\n如果你只是聊天\n問一句答一句\n輸入很短輸出很長\n那頻寬就是你的體感\n數字好看你就真的爽\n但\n如果你在做 agentic coding\n,或者同時開好幾個\n代理,情況完全反過來\n那種工作是什麼形狀\n讀進去一大坨,吐出來一小撮\n實測下來\n每一輪送進去二十萬 token\n,只吐出不到一千個字\n這種形狀下\n你的時間幾乎全部\n花在預填充,不在吐字\n頻寬再高也救不了\n這樣的體驗將會非常差\n你大概率會想要退貨的\n那多開幾個代理會怎麼樣\n你每開一個子代理\n就是一次全新的預填充\n開四個就是四次\n所以同一台mac\n你拿它聊天會覺得很快\n拿它跑代理會覺得很慢\n兩個感覺都是真的\n因為你在用的是\n兩個不同的規格\n如果你買 Mac 是為\n了在本地跑語言模型,有\n一類模型特別適合你\n叫做 MoE\n它的全名是\nMixture of\nExperts,混合專家\n一般的模型裡面\n負責運算的那一層只有一組\n你每產生一個字\n這一組全部都要動一次\nMoE 把那一層拆成很多組\n常見的是幾十組到幾百組\n然後它多了一\n個很小的分派器\n每產生一個字\n分派器決定這次要叫醒\n哪幾組,通常只叫兩三組\n沒被叫到的那幾百組\n這個字完全不參與運算\n那沒被叫到的那些呢\n它們還是佔著記憶體\n沒被叫到不等於不用放進來\n那你怎麼看出一個\n模型是不是 MoE。看名字\n你會看到兩個數字\n像是三十 B,A 三 B 這種寫法\n前面那個是總共多大\n決定你裝不裝得下\nA 後面那個是每次啟用多少\n決定你跑起來多快\n那這件事為什麼剛\n好對 Mac 有用\n回想一下前面講的\nMac 的強項是什麼\n記憶體大\n因為它是統一記憶體\n整池都能給模型用\nMac 的弱項是算力比較差\n讀你貼進去那一\n大段的時候會等\n頻寬也不是最頂的\n吐字速度有天花板\nMoE 要的剛\n好是 Mac 有的\n它吃記憶體\n而記憶體是 Mac\n最不缺的東西\nMoE 省的剛\n好是 Mac 缺的\n每次只算兩三組\n算力需求變小\n要搬的權重也少很多\n所以同一台 Mac\n跑一個一千一百七\n十億參數的 MoE\n可以比跑一個七百\n億的一般模型還快\n這也是為什麼你會看到\n有人拿 Mac 跑那些名\n字聽起來很誇張的大模型\n而且真的跑得動\n你在 Mac 上挑模型的時候\n名字裡有沒有那個 A\n是你第一個要看的東西\n有一件事不要算過頭\n你不能拿啟用的那\n一小塊直接去除頻寬\n然後說速度會變幾倍\n中間還有挑選專家的成本\n那個不是零\n說到這裡\n規格對應到什麼已經清楚了\n那就分成三種人來看\n第一種,你的 AI 全部都用雲端的\nChatGPT,Claude,Gemini\n,你不打算在自己\nmac上跑模型\n那這些頻寬跟核心數的差別\n對你幾乎沒有意義\n十六 GB,二十四 GB\n或者三十二 GB 都夠用\n那要花多少\n八百九十九到一千兩\n百九十九美元這一段\nM6 的 Mac mini\n就可以了\n真的要偶爾在本地跑一下\n三十二 GB 可以放 Qwen\n那個三十 B,A 三 B\n總共三百零五億\n每次啟用三十三億\n四位元之後十八點六 GB\n第二種呢\n你要剪影片\n同時想在本地\n跑一些語言模型\n這一種的甜蜜點在哪\n我認為是\nMac Studio 六十四\nGB,三千七百九十九美元\n理由是六十四 GB 剛\n好讓三百二十億\n參數這一級跑得很舒服\n七百億也塞得進去\n而且六十四 GB 在\nStudio 上必然是四\n十核那顆,頻寬六百一十四\n你為了容量付的錢\n順便買到了最高的頻寬\n這一級你能跑哪些\n選擇一下子變多\n三十幾 B 的 MoE\n跑起來都很輕鬆\n如果你買到一百二十八 GB\n那 gpt-oss-120b\n是最好的例子\n一千一百七十億總參數\n六十二點八 GB\n但每次只啟用五十一億\n第三種呢\n你對本地大模型有很強的\n需求,你要跑那種真正大的\n那六十四 GB 夠不夠。不夠\n你要看的是二百五十六 GB\n甚至五百一十二 GB\n的統一記憶體\n那個級距只有 Mac Studio\n的 M5 Ultra 有\n二百五十六 GB 是一\n萬零七百九十九美元\n為什麼要那麼多\n因為真正大的那幾個\n開源模型是這個量級\nDeepSeek 那個\nV4 Flash,兩千八百四\n十億,四位元要一百五十五 GB\n更極端的\nKimi K3 四位\n元要一點五一 TB\n開源不等於你跑得動\n你身邊如果有人也在這幾台之\n間猶豫,把這一段轉給他\n這三個級距是他要\n先搞清楚的東西\n五百一十二 GB 那個\n版本現在還下不了單\n官方說十月下旬才會上市\n這一段的價格是跳躍的\n不是線性的\n從六十四跳到二百五十六\n記憶體四倍,價格接近三倍\n所以你要先確定你真的\n需要跑那麼大的模型\n這筆錢才花得下去\n前面講的全部是文字模型\n那生圖跟生影片呢\n這兩件事在 Mac 上是弱的\n而且弱的地方不一樣\n先講影片\n因為想在本地跑 AI 的人\n很多是衝著這個來的\n而算力,正是前面講的\nApple 這幾代的弱點\n而且不只是算力\n還有生態\nMac 這邊沒有 TensorRT\n那種等級的推論優化\n,PyTorch 的編譯加\n速跟 Mac 的後端不相容\nComfyUI 在 Mac\n上是能跑的,走的是 PyTorch\n的 Metal 後端\n但有些運算沒實作\n會掉回 CPU 跑\n在 CUDA 上是裝好就動\nM5 的算力是有改善\n同一個 app 生同一段五\n秒影片,筆電的 M5 Max\n四十核兩分鐘,M3 Ultra\n八十核要三分二十六秒\n但 ComfyUI 不是\n直接吃到這個算力,中間隔\n著 PyTorch 的\nMetal 後端,M5 新加的\n矩陣單元它才剛開始支援\n算力本來就是 Mac 的弱項\n跟 NVIDIA 比\n這一代還是輸\n如果這台 Mac 你\n本來就要買,它同時是你\n的日常機,你的剪接機\n你寫程式的機器\n那半夜掛著跑\n基本上只有電費的錢\n但是生成的影片速度非常慢\n並且還要考量到不是每一\n段影片都是可以用的片段\n真正能用的秒數,要再打個折\n所以如果你的主要目的是\n影片生成,那會建議\n還是考慮 NVIDIA\n最後有一個做法\n你不一定用得到它\n但我個人認為這解\n決方案非常有趣!\n有一個團隊\n把一台 NVIDIA 的\nDGX SPARK和一台\nMac Studio 接在一起\n讓算力強的那台負責讀完\n整段,讓頻寬高的那台負責吐字\n他們自己測的數字是這樣\n同一個模型同一段輸入\nMac 那台讀完花五點\n五七秒,吐字零點八五秒\nNVIDIA 那台\n讀完一點四七秒\n吐字二點八七秒\n你看這四個數字\n兩台各自贏一半\n兩台各贏一半\n接起來取兩邊快的那一段\n總共兩點三二秒\n快兩點八倍\n這剛好證明了前面那\n兩件事真的是分開的\n沒有一台機器兩邊都贏\n不過這是那個團\n隊自己測的數字\n而且現階段這個解決方案\n一定還有很大的改善空間\n即便如此\n我還是相信未來會有更多\n類似這樣的更好解決方案\n讓大家可以自己根據需\n求組合對應的硬體規格\n最後再收一次\n記憶體決定你裝不裝得下\n頻寬決定吐字多快\n算力決定你按下任\n務送出之後要等多久\n你卡在哪一件\n你要找的不是最強的那一台\n是你自己卡在哪一件事\n然後規格表上對應的那一行\n生圖的話\n我上面已經幫你們算過了\n專門買一台不划算\n順便用很划算\n跑文字模型的話\n裝得下是第一關\n頻寬是第二關\n相信這樣你自\n己就挑得出來了\n這批機器九月二十二號出貨\n到時候會有第一批\n真正的實測數字出來\n我會回來把這支影片裡所\n有還沒有數字的地方填滿\n你如果不想錯過那一集\n訂閱一下\n另外,你現在卡在哪兩個規格之間\n或者已經下訂了哪一台\n留言告訴我你的用途\n我看看能不能幫你判斷\n我是路可,讓我們一起踹踹看",
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    {
      "id": 0,
      "start": 0.0,
      "end": 1.58,
      "text": "相信大家對於九月這批",
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    },
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      "id": 1,
      "start": 1.58,
      "end": 3.161,
      "text": "新的 Mac mini 跟",
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      "start": 3.161,
      "end": 4.583,
      "text": "Mac Studio,",
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    {
      "id": 3,
      "start": 4.583,
      "end": 6.48,
      "text": "到底要買哪一台,買什麼規格",
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      "id": 4,
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      "text": "都有很大的疑問",
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      "text": "我也一樣",
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      "text": "我打開購買頁排了一個下午",
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      "end": 13.13,
      "text": "越排越不確定",
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      "id": 8,
      "start": 13.35,
      "end": 14.894,
      "text": "因為官網把記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 9,
      "start": 14.894,
      "end": 16.051,
      "text": "GPU 核心數",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 10,
      "start": 16.051,
      "end": 17.209,
      "text": "跟記憶體頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 11,
      "start": 17.209,
      "end": 18.56,
      "text": "分成三個地方寫",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 12,
      "start": 18.78,
      "end": 20.636,
      "text": "你看得到每一個數字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 13,
      "start": 20.636,
      "end": 23.11,
      "text": "但看不到它們是連在一起的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 14,
      "start": 23.33,
      "end": 24.889,
      "text": "我先給你其中一個結論",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 15,
      "start": 24.889,
      "end": 26.76,
      "text": "你等一下就知道我在說什麼",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 16,
      "start": 26.98,
      "end": 28.604,
      "text": "如果你跑代理的時候",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 17,
      "start": 28.604,
      "end": 30.768,
      "text": "每一輪都要讀進很長的內容",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 18,
      "start": 30.768,
      "end": 32.031,
      "text": "卻只回你一小段",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 19,
      "start": 32.031,
      "end": 34.196,
      "text": "時間就可能主要花在處理輸",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 20,
      "start": 34.196,
      "end": 36.18,
      "text": "入的運算上,不是花在吐字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 21,
      "start": 36.4,
      "end": 37.913,
      "text": "這一段主要看算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 22,
      "start": 37.913,
      "end": 39.993,
      "text": "所以模型裝得下、吐字很快",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 23,
      "start": 39.993,
      "end": 41.316,
      "text": "都不代表你按下",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 24,
      "start": 41.316,
      "end": 42.64,
      "text": "送出之後不用等",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 25,
      "start": 42.86,
      "end": 44.54,
      "text": "這支影片就是要幫助你",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 26,
      "start": 44.54,
      "end": 46.22,
      "text": "選一台適合自己的規格",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 27,
      "start": 46.44,
      "end": 47.874,
      "text": "先把買之前必須",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 28,
      "start": 47.874,
      "end": 49.717,
      "text": "知道的那幾個規格,各",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 29,
      "start": 49.717,
      "end": 51.56,
      "text": "自卡住你什麼,講清楚",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 30,
      "start": 51.78,
      "end": 52.782,
      "text": "然後你拿自己",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 31,
      "start": 52.782,
      "end": 53.95,
      "text": "的使用情境去對",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 32,
      "start": 54.17,
      "end": 55.415,
      "text": "你就抓得到最適",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 33,
      "start": 55.415,
      "end": 56.66,
      "text": "合你的那個規格",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 34,
      "start": 57.11,
      "end": 58.323,
      "text": "購買 mac 之前",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 35,
      "start": 58.323,
      "end": 60.23,
      "text": "有兩件事情一定要先理解",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 36,
      "start": 60.45,
      "end": 62.46,
      "text": "第一個叫什麼。預填充",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 37,
      "start": 62.68,
      "end": 64.405,
      "text": "它會把你輸入的整段",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 38,
      "start": 64.405,
      "end": 66.13,
      "text": "提示詞一次全部算完",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 39,
      "start": 66.35,
      "end": 67.773,
      "text": "這一段算完之後",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 40,
      "start": 67.773,
      "end": 69.4,
      "text": "它會把每一層算出",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 41,
      "start": 69.4,
      "end": 71.23,
      "text": "來的中間結果存下來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 42,
      "start": 71.45,
      "end": 73.37,
      "text": "就是所謂的 KV cache",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 43,
      "start": 73.59,
      "end": 74.845,
      "text": "第二個是解碼",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 44,
      "start": 74.845,
      "end": 77.145,
      "text": "它開始一個字一個字回你",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 45,
      "start": 77.145,
      "end": 78.4,
      "text": "每次吐一個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 46,
      "start": 78.62,
      "end": 79.53,
      "text": "它都要把整份",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 47,
      "start": 79.53,
      "end": 81.35,
      "text": "KV cache 從頭掃一次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 48,
      "start": 81.57,
      "end": 82.887,
      "text": "這兩件事卡在",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 49,
      "start": 82.887,
      "end": 84.424,
      "text": "完全不同的地方",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 50,
      "start": 84.424,
      "end": 86.62,
      "text": "預填充是一次算一大片",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 51,
      "start": 86.84,
      "end": 87.932,
      "text": "主要靠算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 52,
      "start": 87.932,
      "end": 90.117,
      "text": "解碼是一個字一個字來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 53,
      "start": 90.117,
      "end": 92.52,
      "text": "每次都要把資料整份搬過",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 54,
      "start": 92.74,
      "end": 94.9,
      "text": "靠的是記憶體頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 55,
      "start": 95.12,
      "end": 98.011,
      "text": "那麼..預填充為什麼會慢呢?",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 56,
      "start": 98.011,
      "end": 99.85,
      "text": "因為你輸入越長",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 57,
      "start": 100.07,
      "end": 102.62,
      "text": "它要算的量不是等比例增加",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 58,
      "start": 102.62,
      "end": 104.32,
      "text": "是跟長度的平方走",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 59,
      "start": 104.54,
      "end": 106.316,
      "text": "你貼一段程式碼進去",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 60,
      "start": 106.316,
      "end": 107.894,
      "text": "那一段要先被讀完",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 61,
      "start": 107.894,
      "end": 109.67,
      "text": "你才會看到第一個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 62,
      "start": 109.89,
      "end": 111.465,
      "text": "這裡有一個大家最",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 63,
      "start": 111.465,
      "end": 112.842,
      "text": "容易搞錯的地方",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 64,
      "start": 112.842,
      "end": 114.22,
      "text": "多輪對話的時候",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 65,
      "start": 114.44,
      "end": 115.799,
      "text": "前面所有的歷史",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 66,
      "start": 115.799,
      "end": 118.13,
      "text": "會不會每一輪都重新算一次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 67,
      "start": 118.35,
      "end": 119.417,
      "text": "答案是不一定",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 68,
      "start": 119.417,
      "end": 121.017,
      "text": "如果前面那一段一個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 69,
      "start": 121.017,
      "end": 122.973,
      "text": "字都沒變,KV cache",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 70,
      "start": 122.973,
      "end": 124.04,
      "text": "可以直接沿用",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 71,
      "start": 124.26,
      "end": 125.425,
      "text": "mac只算你這",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 72,
      "start": 125.425,
      "end": 126.59,
      "text": "一輪新加的東西",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 73,
      "start": 126.81,
      "end": 128.917,
      "text": "那什麼時候會失效",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 74,
      "start": 128.917,
      "end": 130.233,
      "text": "有三種情況",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 75,
      "start": 130.233,
      "end": 132.34,
      "text": "一中就是全部重算",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 76,
      "start": 132.56,
      "end": 133.772,
      "text": "第一種是什麼",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 77,
      "start": 133.772,
      "end": 135.792,
      "text": "你開了一個新的子代理",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 78,
      "start": 135.792,
      "end": 137.61,
      "text": "那是一個全新的對話",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 79,
      "start": 137.83,
      "end": 139.76,
      "text": "前面的快取一個字都用不到",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 80,
      "start": 139.98,
      "end": 140.991,
      "text": "第二種呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 81,
      "start": 140.991,
      "end": 144.023,
      "text": "工具回傳的結果被插進中間",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 82,
      "start": 144.023,
      "end": 146.55,
      "text": "插入點後面的全部失效",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 83,
      "start": 146.77,
      "end": 147.783,
      "text": "第三種呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 84,
      "start": 147.783,
      "end": 150.061,
      "text": "你把程式關掉再打開",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 85,
      "start": 150.061,
      "end": 151.58,
      "text": "本地跑的時候",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 86,
      "start": 151.8,
      "end": 153.85,
      "text": "通常不會把快取留到下一次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 87,
      "start": 154.07,
      "end": 155.51,
      "text": "這個差別有多大",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 88,
      "start": 155.51,
      "end": 157.36,
      "text": "有人拿同一台mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 89,
      "start": 157.36,
      "end": 158.8,
      "text": "同一個模型量過",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 90,
      "start": 159.02,
      "end": 161.568,
      "text": "快取全中的時候,等兩點九秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 91,
      "start": 161.568,
      "end": 163.478,
      "text": "快取沒中要全部重算",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 92,
      "start": 163.478,
      "end": 164.54,
      "text": "等八十二秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 93,
      "start": 164.76,
      "end": 167.313,
      "text": "同一台mac,同一個模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 94,
      "start": 167.313,
      "end": 168.473,
      "text": "差二十八倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 95,
      "start": 168.473,
      "end": 169.866,
      "text": "差別只在前面",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 96,
      "start": 169.866,
      "end": 171.49,
      "text": "那段有沒有動過",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 97,
      "start": 171.71,
      "end": 173.841,
      "text": "所以你如果覺得同一台mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 98,
      "start": 173.841,
      "end": 175.48,
      "text": "有時候很快有時候很慢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 99,
      "start": 175.7,
      "end": 176.91,
      "text": "那不是你的錯覺",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 100,
      "start": 177.13,
      "end": 178.875,
      "text": "還有一個例子更直接",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 101,
      "start": 178.875,
      "end": 180.813,
      "text": "有人測同一段長提示詞",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 102,
      "start": 180.813,
      "end": 182.17,
      "text": "量到兩點九七秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 103,
      "start": 182.39,
      "end": 183.387,
      "text": "覺得很快",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 104,
      "start": 183.387,
      "end": 186.128,
      "text": "然後他自己發現那是快取",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 105,
      "start": 186.128,
      "end": 188.87,
      "text": "命中,關掉重測,變成十七秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 106,
      "start": 189.32,
      "end": 190.22,
      "text": "先說一件事",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 107,
      "start": 190.22,
      "end": 192.2,
      "text": "Mac 跟一般電腦差在哪",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 108,
      "start": 192.2,
      "end": 194.18,
      "text": "差在它的記憶體是統一的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 109,
      "start": 194.4,
      "end": 196.65,
      "text": "CPU 跟 GPU 共用同一池",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 110,
      "start": 196.87,
      "end": 198.795,
      "text": "所以規格表上那個記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 111,
      "start": 198.795,
      "end": 200.72,
      "text": "數字,就是模型可以用的量",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 112,
      "start": 200.94,
      "end": 202.225,
      "text": "這是 Mac 跑大",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 113,
      "start": 202.225,
      "end": 203.51,
      "text": "模型真正的優勢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 114,
      "start": 203.73,
      "end": 205.528,
      "text": "在 Mac Studio 上",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 115,
      "start": 205.528,
      "end": 206.836,
      "text": "你只要把記憶體選",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 116,
      "start": 206.836,
      "end": 207.98,
      "text": "超過三十六 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 117,
      "start": 208.2,
      "end": 209.932,
      "text": "系統就會自動把你的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 118,
      "start": 209.932,
      "end": 212.05,
      "text": "GPU 換成貴一階的那顆",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 119,
      "start": 212.27,
      "end": 214.37,
      "text": "頻寬從四百六十跳到六",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 120,
      "start": 214.37,
      "end": 216.68,
      "text": "百一十四,價格多六百美元",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 121,
      "start": 216.9,
      "end": 219.47,
      "text": "這不是加價選配,是你沒得選",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 122,
      "start": 219.69,
      "end": 221.782,
      "text": "規格跟價格我整理成一張表",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 123,
      "start": 221.782,
      "end": 223.7,
      "text": "放在畫面上,你暫停看就好",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 124,
      "start": 223.92,
      "end": 224.41,
      "text": "我不念",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 125,
      "start": 224.63,
      "end": 227.234,
      "text": "這一段如果幫你省掉在購買頁上",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 126,
      "start": 227.234,
      "end": 229.28,
      "text": "來回猜的時間,順手按個讚",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 127,
      "start": 229.5,
      "end": 230.945,
      "text": "讓這支片被更多正",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 128,
      "start": 230.945,
      "end": 232.39,
      "text": "在選機器的人看到",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 129,
      "start": 232.84,
      "end": 234.345,
      "text": "那把前面那兩件事套回",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 130,
      "start": 234.345,
      "end": 235.7,
      "text": "Mac,會是什麼情況",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 131,
      "start": 235.92,
      "end": 237.05,
      "text": "預填充吃算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 132,
      "start": 237.05,
      "end": 238.179,
      "text": "而算力一直是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 133,
      "start": 238.179,
      "end": 240.25,
      "text": "Apple 這幾代的弱點",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 134,
      "start": 240.47,
      "end": 242.687,
      "text": "M1 到 M4 這幾代",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 135,
      "start": 242.687,
      "end": 245.459,
      "text": "只要你輸入的東西一多",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 136,
      "start": 245.459,
      "end": 248.23,
      "text": "光是讀完就要等。要多久",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 137,
      "start": 248.45,
      "end": 249.18,
      "text": "有數字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 138,
      "start": 249.4,
      "end": 251.396,
      "text": "有人拿 M3 Ultra 加",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 139,
      "start": 251.396,
      "end": 253.574,
      "text": "五百一十二 GB 記憶體用了",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 140,
      "start": 253.574,
      "end": 255.57,
      "text": "六個月,寫下他的實際體感",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 141,
      "start": 255.79,
      "end": 257.715,
      "text": "簡單對話幾秒鐘就回",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 142,
      "start": 257.715,
      "end": 259.64,
      "text": "這一段你不會有感覺",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 143,
      "start": 259.86,
      "end": 262.331,
      "text": "請它改一篇七千字的文章",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 144,
      "start": 262.331,
      "end": 263.23,
      "text": "等三十秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 145,
      "start": 263.45,
      "end": 265.202,
      "text": "掛一個系統提示一萬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 146,
      "start": 265.202,
      "end": 268.121,
      "text": "六千字的 coding agent",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 147,
      "start": 268.121,
      "end": 268.9,
      "text": ",等九十秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 148,
      "start": 269.12,
      "end": 271.518,
      "text": "九十秒。在那九十秒裡",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 149,
      "start": 271.518,
      "end": 273.65,
      "text": "畫面上什麼都沒有",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 150,
      "start": 273.87,
      "end": 275.566,
      "text": "那台是 M3 Ultra",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 151,
      "start": 275.566,
      "end": 276.923,
      "text": "記憶體頻寬已經是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 152,
      "start": 276.923,
      "end": 278.11,
      "text": "當時最高的一批",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 153,
      "start": 278.33,
      "end": 280.216,
      "text": "頻寬那麼高為什麼",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 154,
      "start": 280.216,
      "end": 281.867,
      "text": "沒有救到這一段",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 155,
      "start": 281.867,
      "end": 284.46,
      "text": "因為這一段卡的不是頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 156,
      "start": 284.68,
      "end": 285.621,
      "text": "那 M5 呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 157,
      "start": 285.621,
      "end": 288.443,
      "text": "Apple 去年十一月發過",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 158,
      "start": 288.443,
      "end": 291.03,
      "text": "一份研究,拿 M5 對比 M4",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 159,
      "start": 291.25,
      "end": 293.622,
      "text": "等第一個字出現的時間",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 160,
      "start": 293.622,
      "end": 295.52,
      "text": "快了三點三到四倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 161,
      "start": 295.52,
      "end": 297.18,
      "text": "這是很大的改進",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 162,
      "start": 297.4,
      "end": 298.777,
      "text": "而且方向對",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 163,
      "start": 298.777,
      "end": 301.53,
      "text": "他們加強的正好是算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 164,
      "start": 301.75,
      "end": 303.5,
      "text": "那這個改進是哪裡來的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 165,
      "start": 303.72,
      "end": 305.51,
      "text": "M5 這一代在每一個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 166,
      "start": 305.51,
      "end": 307.5,
      "text": "GPU 核心裡面,加了一",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 167,
      "start": 307.5,
      "end": 309.29,
      "text": "個專門算矩陣的單元",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 168,
      "start": 309.51,
      "end": 311.2,
      "text": "叫做神經加速器",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 169,
      "start": 311.42,
      "end": 313.712,
      "text": "Apple 自己的說法是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 170,
      "start": 313.712,
      "end": 315.171,
      "text": "產生第一個字這",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 171,
      "start": 315.171,
      "end": 316.63,
      "text": "件事被算力綁住",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 172,
      "start": 316.85,
      "end": 318.647,
      "text": "而它完全吃得到神",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 173,
      "start": 318.647,
      "end": 320.22,
      "text": "經加速器的好處",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 174,
      "start": 320.44,
      "end": 321.414,
      "text": "換句話說",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 175,
      "start": 321.414,
      "end": 323.85,
      "text": "你多花的錢買到的算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 176,
      "start": 324.07,
      "end": 325.835,
      "text": "全部用在你按下送",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 177,
      "start": 325.835,
      "end": 327.6,
      "text": "出之後那段等待上",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 178,
      "start": 327.82,
      "end": 328.823,
      "text": "有多明顯",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 179,
      "start": 328.823,
      "end": 330.83,
      "text": "有人拿同一台 M5",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 180,
      "start": 330.83,
      "end": 333.59,
      "text": "同一個模型,只切這個開關",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 181,
      "start": 333.81,
      "end": 335.759,
      "text": "讀取的速度從每秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 182,
      "start": 335.759,
      "end": 337.708,
      "text": "兩百四十七跳到六",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 183,
      "start": 337.708,
      "end": 339.9,
      "text": "百三十六,兩點五七倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 184,
      "start": 340.12,
      "end": 342.645,
      "text": "吐字的速度從二十九點六",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 185,
      "start": 342.645,
      "end": 345.17,
      "text": "到三十一,只有一點零五倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 186,
      "start": 345.39,
      "end": 346.576,
      "text": "你注意一下這",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 187,
      "start": 346.576,
      "end": 347.96,
      "text": "兩個數字的差距",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 188,
      "start": 348.18,
      "end": 350.694,
      "text": "同一台機器同一個模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 189,
      "start": 350.694,
      "end": 353.71,
      "text": "只換一個開關,一邊跳兩倍半",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 190,
      "start": 353.93,
      "end": 355.613,
      "text": "另一邊幾乎不動",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 191,
      "start": 355.613,
      "end": 357.297,
      "text": "這就是那兩件事",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 192,
      "start": 357.297,
      "end": 358.98,
      "text": "真的分開的證據",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 193,
      "start": 359.2,
      "end": 361.282,
      "text": "那買之前要注意",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 194,
      "start": 361.282,
      "end": 362.77,
      "text": "什麼。有兩件",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 195,
      "start": 362.99,
      "end": 366.619,
      "text": "第一,這個東西不是只有某一台有",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 196,
      "start": 366.619,
      "end": 368.952,
      "text": "M5,M5 Pro,M5",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 197,
      "start": 368.952,
      "end": 371.544,
      "text": "Max,M5 Ultra",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 198,
      "start": 371.544,
      "end": 372.84,
      "text": "連 M6 都有",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 199,
      "start": 373.06,
      "end": 375.255,
      "text": "所以它不是選型的差別",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 200,
      "start": 375.255,
      "end": 377.23,
      "text": "你買哪一台都吃得到",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 201,
      "start": 377.45,
      "end": 379.393,
      "text": "第二,有這個硬體是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 202,
      "start": 379.393,
      "end": 381.822,
      "text": "不是就自動用得到。不是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 203,
      "start": 381.822,
      "end": 383.28,
      "text": "要 macOS",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 204,
      "start": 383.28,
      "end": 384.98,
      "text": "二十六點二以上",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 205,
      "start": 385.2,
      "end": 387.53,
      "text": "而且軟體要支援才會啟用",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 206,
      "start": 387.75,
      "end": 388.937,
      "text": "但要注意這是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 207,
      "start": 388.937,
      "end": 391.113,
      "text": "Apple 拿自己比自己",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 208,
      "start": 391.113,
      "end": 392.3,
      "text": "它沒有回答跟",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 209,
      "start": 392.3,
      "end": 394.08,
      "text": "NVIDIA 差多少",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 210,
      "start": 394.3,
      "end": 395.995,
      "text": "那個差距目前只",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 211,
      "start": 395.995,
      "end": 397.689,
      "text": "有上一代的數字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 212,
      "start": 397.689,
      "end": 400.11,
      "text": "同一個模型同一段輸入",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 213,
      "start": 400.33,
      "end": 402.918,
      "text": "M3 Ultra 要五點",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 214,
      "start": 402.918,
      "end": 405.248,
      "text": "五七秒,NVIDIA",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 215,
      "start": 405.248,
      "end": 407.836,
      "text": "那台小機器一點四七秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 216,
      "start": 407.836,
      "end": 409.13,
      "text": "差三點八倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 217,
      "start": 409.35,
      "end": 411.371,
      "text": "那 Mac Studio",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 218,
      "start": 411.371,
      "end": 412.786,
      "text": "上面那顆最大的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 219,
      "start": 412.786,
      "end": 414.403,
      "text": "M5 Ultra 呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 220,
      "start": 414.403,
      "end": 415.615,
      "text": "它九月二十二",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 221,
      "start": 415.615,
      "end": 417.03,
      "text": "號才第一次出貨",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 222,
      "start": 417.25,
      "end": 418.092,
      "text": "在那之前",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 223,
      "start": 418.092,
      "end": 420.197,
      "text": "這顆晶片沒有人拿到過",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 224,
      "start": 420.197,
      "end": 421.25,
      "text": "能追上多少",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 225,
      "start": 421.47,
      "end": 422.393,
      "text": "要等出貨之後",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 226,
      "start": 422.393,
      "end": 423.47,
      "text": "才有人測得出來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 227,
      "start": 423.92,
      "end": 425.371,
      "text": "那另外一半呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 228,
      "start": 425.371,
      "end": 426.58,
      "text": "解碼跟頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 229,
      "start": 426.8,
      "end": 429.084,
      "text": "解碼是一個字一個字產生",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 230,
      "start": 429.084,
      "end": 430.33,
      "text": "每產生一個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 231,
      "start": 430.55,
      "end": 432.482,
      "text": "mac都要把整份模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 232,
      "start": 432.482,
      "end": 434.8,
      "text": "權重從記憶體讀進晶片一次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 233,
      "start": 435.02,
      "end": 436.918,
      "text": "所以它被什麼綁住",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 234,
      "start": 436.918,
      "end": 438.105,
      "text": "記憶體頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 235,
      "start": 438.105,
      "end": 439.054,
      "text": "頻寬翻倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 236,
      "start": 439.054,
      "end": 441.19,
      "text": "吐字速度就接近翻倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 237,
      "start": 441.41,
      "end": 443.415,
      "text": "所以跑分表上最常看到的那",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 238,
      "start": 443.415,
      "end": 445.42,
      "text": "個數字,每秒幾個 token",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 239,
      "start": 445.64,
      "end": 447.673,
      "text": "在 Mac 上為什麼會很好看",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 240,
      "start": 447.673,
      "end": 448.69,
      "text": "就是這個原因",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 241,
      "start": 448.91,
      "end": 451.322,
      "text": "M5 這一代吐字也有進步",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 242,
      "start": 451.322,
      "end": 453.076,
      "text": "官方的數字是快百",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 243,
      "start": 453.076,
      "end": 454.83,
      "text": "分之十九到二十七",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 244,
      "start": 455.05,
      "end": 457.643,
      "text": "比起預填充那個三到四倍小",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 245,
      "start": 457.643,
      "end": 460.02,
      "text": "很多,但你看跑分表的時候",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 246,
      "start": 460.24,
      "end": 461.49,
      "text": "感覺是很直接的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 247,
      "start": 461.71,
      "end": 462.767,
      "text": "問題在這裡",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 248,
      "start": 462.767,
      "end": 464.669,
      "text": "你日常真正在做的事",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 249,
      "start": 464.669,
      "end": 466.36,
      "text": "決定你有沒有感覺",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 250,
      "start": 466.58,
      "end": 468.25,
      "text": "你平常是哪一種",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 251,
      "start": 468.25,
      "end": 469.919,
      "text": "如果你只是聊天",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 252,
      "start": 469.919,
      "end": 471.35,
      "text": "問一句答一句",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 253,
      "start": 471.57,
      "end": 473.465,
      "text": "輸入很短輸出很長",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 254,
      "start": 473.465,
      "end": 475.598,
      "text": "那頻寬就是你的體感",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 255,
      "start": 475.598,
      "end": 477.73,
      "text": "數字好看你就真的爽",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 256,
      "start": 477.95,
      "end": 478.115,
      "text": "但",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 257,
      "start": 478.115,
      "end": 481.08,
      "text": "如果你在做 agentic coding",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 258,
      "start": 481.08,
      "end": 482.398,
      "text": ",或者同時開好幾個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 259,
      "start": 482.398,
      "end": 483.88,
      "text": "代理,情況完全反過來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 260,
      "start": 484.1,
      "end": 486.494,
      "text": "那種工作是什麼形狀",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 261,
      "start": 486.494,
      "end": 489.686,
      "text": "讀進去一大坨,吐出來一小撮",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 262,
      "start": 489.686,
      "end": 490.75,
      "text": "實測下來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 263,
      "start": 490.97,
      "end": 493.435,
      "text": "每一輪送進去二十萬 token",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 264,
      "start": 493.435,
      "end": 495.02,
      "text": ",只吐出不到一千個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 265,
      "start": 495.24,
      "end": 496.333,
      "text": "這種形狀下",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 266,
      "start": 496.333,
      "end": 498.082,
      "text": "你的時間幾乎全部",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 267,
      "start": 498.082,
      "end": 500.05,
      "text": "花在預填充,不在吐字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 268,
      "start": 500.27,
      "end": 501.657,
      "text": "頻寬再高也救不了",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 269,
      "start": 501.657,
      "end": 503.39,
      "text": "這樣的體驗將會非常差",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 270,
      "start": 503.61,
      "end": 505.38,
      "text": "你大概率會想要退貨的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 271,
      "start": 505.6,
      "end": 508.061,
      "text": "那多開幾個代理會怎麼樣",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 272,
      "start": 508.061,
      "end": 509.85,
      "text": "你每開一個子代理",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 273,
      "start": 510.07,
      "end": 512.617,
      "text": "就是一次全新的預填充",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 274,
      "start": 512.617,
      "end": 514.4,
      "text": "開四個就是四次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 275,
      "start": 514.62,
      "end": 516.2,
      "text": "所以同一台mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 276,
      "start": 516.2,
      "end": 518.175,
      "text": "你拿它聊天會覺得很快",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 277,
      "start": 518.175,
      "end": 520.15,
      "text": "拿它跑代理會覺得很慢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 278,
      "start": 520.37,
      "end": 521.857,
      "text": "兩個感覺都是真的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 279,
      "start": 521.857,
      "end": 523.159,
      "text": "因為你在用的是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 280,
      "start": 523.159,
      "end": 524.46,
      "text": "兩個不同的規格",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 281,
      "start": 524.91,
      "end": 526.524,
      "text": "如果你買 Mac 是為",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 282,
      "start": 526.524,
      "end": 528.316,
      "text": "了在本地跑語言模型,有",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 283,
      "start": 528.316,
      "end": 529.93,
      "text": "一類模型特別適合你",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 284,
      "start": 530.15,
      "end": 531.36,
      "text": "叫做 MoE",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 285,
      "start": 531.58,
      "end": 532.238,
      "text": "它的全名是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 286,
      "start": 532.238,
      "end": 533.422,
      "text": "Mixture of",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 287,
      "start": 533.422,
      "end": 534.87,
      "text": "Experts,混合專家",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 288,
      "start": 535.09,
      "end": 536.514,
      "text": "一般的模型裡面",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 289,
      "start": 536.514,
      "end": 538.956,
      "text": "負責運算的那一層只有一組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 290,
      "start": 538.956,
      "end": 540.38,
      "text": "你每產生一個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 291,
      "start": 540.6,
      "end": 542.2,
      "text": "這一組全部都要動一次",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 292,
      "start": 542.42,
      "end": 545.138,
      "text": "MoE 把那一層拆成很多組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 293,
      "start": 545.138,
      "end": 547.63,
      "text": "常見的是幾十組到幾百組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 294,
      "start": 547.85,
      "end": 549.167,
      "text": "然後它多了一",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 295,
      "start": 549.167,
      "end": 550.703,
      "text": "個很小的分派器",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 296,
      "start": 550.703,
      "end": 552.02,
      "text": "每產生一個字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 297,
      "start": 552.24,
      "end": 553.92,
      "text": "分派器決定這次要叫醒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 298,
      "start": 553.92,
      "end": 555.6,
      "text": "哪幾組,通常只叫兩三組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 299,
      "start": 555.82,
      "end": 557.454,
      "text": "沒被叫到的那幾百組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 300,
      "start": 557.454,
      "end": 559.27,
      "text": "這個字完全不參與運算",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 301,
      "start": 559.49,
      "end": 561.415,
      "text": "那沒被叫到的那些呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 302,
      "start": 561.415,
      "end": 563.34,
      "text": "它們還是佔著記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 303,
      "start": 563.56,
      "end": 565.81,
      "text": "沒被叫到不等於不用放進來",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 304,
      "start": 566.03,
      "end": 567.811,
      "text": "那你怎麼看出一個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 305,
      "start": 567.811,
      "end": 570.259,
      "text": "模型是不是 MoE。看名字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 306,
      "start": 570.259,
      "end": 572.04,
      "text": "你會看到兩個數字",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 307,
      "start": 572.26,
      "end": 575.38,
      "text": "像是三十 B,A 三 B 這種寫法",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 308,
      "start": 575.6,
      "end": 577.257,
      "text": "前面那個是總共多大",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 309,
      "start": 577.257,
      "end": 578.73,
      "text": "決定你裝不裝得下",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 310,
      "start": 578.95,
      "end": 581.404,
      "text": "A 後面那個是每次啟用多少",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 311,
      "start": 581.404,
      "end": 583.04,
      "text": "決定你跑起來多快",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 312,
      "start": 583.26,
      "end": 584.716,
      "text": "那這件事為什麼剛",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 313,
      "start": 584.716,
      "end": 585.99,
      "text": "好對 Mac 有用",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 314,
      "start": 586.21,
      "end": 587.764,
      "text": "回想一下前面講的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 315,
      "start": 587.764,
      "end": 589.513,
      "text": "Mac 的強項是什麼",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 316,
      "start": 589.513,
      "end": 590.29,
      "text": "記憶體大",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 317,
      "start": 590.51,
      "end": 592.839,
      "text": "因為它是統一記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 318,
      "start": 592.839,
      "end": 594.91,
      "text": "整池都能給模型用",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 319,
      "start": 595.13,
      "end": 597.572,
      "text": "Mac 的弱項是算力比較差",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 320,
      "start": 597.572,
      "end": 598.996,
      "text": "讀你貼進去那一",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 321,
      "start": 598.996,
      "end": 600.42,
      "text": "大段的時候會等",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 322,
      "start": 600.64,
      "end": 602.205,
      "text": "頻寬也不是最頂的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 323,
      "start": 602.205,
      "end": 603.77,
      "text": "吐字速度有天花板",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 324,
      "start": 603.99,
      "end": 605.237,
      "text": "MoE 要的剛",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 325,
      "start": 605.237,
      "end": 606.692,
      "text": "好是 Mac 有的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 326,
      "start": 606.692,
      "end": 607.731,
      "text": "它吃記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 327,
      "start": 607.731,
      "end": 609.393,
      "text": "而記憶體是 Mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 328,
      "start": 609.393,
      "end": 610.64,
      "text": "最不缺的東西",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 329,
      "start": 610.86,
      "end": 612.134,
      "text": "MoE 省的剛",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 330,
      "start": 612.134,
      "end": 613.62,
      "text": "好是 Mac 缺的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 331,
      "start": 613.62,
      "end": 615.106,
      "text": "每次只算兩三組",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 332,
      "start": 615.106,
      "end": 616.38,
      "text": "算力需求變小",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 333,
      "start": 616.6,
      "end": 618.45,
      "text": "要搬的權重也少很多",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 334,
      "start": 618.67,
      "end": 620.087,
      "text": "所以同一台 Mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 335,
      "start": 620.087,
      "end": 621.503,
      "text": "跑一個一千一百七",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 336,
      "start": 621.503,
      "end": 622.92,
      "text": "十億參數的 MoE",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 337,
      "start": 623.14,
      "end": 624.625,
      "text": "可以比跑一個七百",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 338,
      "start": 624.625,
      "end": 626.11,
      "text": "億的一般模型還快",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 339,
      "start": 626.33,
      "end": 627.959,
      "text": "這也是為什麼你會看到",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 340,
      "start": 627.959,
      "end": 629.588,
      "text": "有人拿 Mac 跑那些名",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 341,
      "start": 629.588,
      "end": 631.38,
      "text": "字聽起來很誇張的大模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 342,
      "start": 631.6,
      "end": 632.81,
      "text": "而且真的跑得動",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 343,
      "start": 633.03,
      "end": 635.321,
      "text": "你在 Mac 上挑模型的時候",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 344,
      "start": 635.321,
      "end": 637.04,
      "text": "名字裡有沒有那個 A",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 345,
      "start": 637.26,
      "end": 638.87,
      "text": "是你第一個要看的東西",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 346,
      "start": 639.09,
      "end": 641.004,
      "text": "有一件事不要算過頭",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 347,
      "start": 641.004,
      "end": 642.706,
      "text": "你不能拿啟用的那",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 348,
      "start": 642.706,
      "end": 644.62,
      "text": "一小塊直接去除頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 349,
      "start": 644.84,
      "end": 646.77,
      "text": "然後說速度會變幾倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 350,
      "start": 646.77,
      "end": 649.128,
      "text": "中間還有挑選專家的成本",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 351,
      "start": 649.128,
      "end": 650.2,
      "text": "那個不是零",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 352,
      "start": 650.65,
      "end": 651.376,
      "text": "說到這裡",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 353,
      "start": 651.376,
      "end": 653.556,
      "text": "規格對應到什麼已經清楚了",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 354,
      "start": 653.556,
      "end": 655.19,
      "text": "那就分成三種人來看",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 355,
      "start": 655.41,
      "end": 657.462,
      "text": "第一種,你的 AI 全部都用雲端的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 356,
      "start": 657.462,
      "end": 660.248,
      "text": "ChatGPT,Claude,Gemini",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 357,
      "start": 660.248,
      "end": 661.274,
      "text": ",你不打算在自己",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 358,
      "start": 661.274,
      "end": 662.3,
      "text": "mac上跑模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 359,
      "start": 662.52,
      "end": 664.924,
      "text": "那這些頻寬跟核心數的差別",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 360,
      "start": 664.924,
      "end": 666.527,
      "text": "對你幾乎沒有意義",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 361,
      "start": 666.527,
      "end": 668.33,
      "text": "十六 GB,二十四 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 362,
      "start": 668.55,
      "end": 670.4,
      "text": "或者三十二 GB 都夠用",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 363,
      "start": 670.62,
      "end": 671.587,
      "text": "那要花多少",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 364,
      "start": 671.587,
      "end": 673.329,
      "text": "八百九十九到一千兩",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 365,
      "start": 673.329,
      "end": 675.07,
      "text": "百九十九美元這一段",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 366,
      "start": 675.29,
      "end": 676.583,
      "text": "M6 的 Mac mini",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 367,
      "start": 676.583,
      "end": 677.1,
      "text": "就可以了",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 368,
      "start": 677.32,
      "end": 679.619,
      "text": "真的要偶爾在本地跑一下",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 369,
      "start": 679.619,
      "end": 682.128,
      "text": "三十二 GB 可以放 Qwen",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 370,
      "start": 682.128,
      "end": 683.8,
      "text": "那個三十 B,A 三 B",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 371,
      "start": 684.02,
      "end": 685.509,
      "text": "總共三百零五億",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 372,
      "start": 685.509,
      "end": 687.21,
      "text": "每次啟用三十三億",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 373,
      "start": 687.21,
      "end": 689.55,
      "text": "四位元之後十八點六 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 374,
      "start": 689.77,
      "end": 690.645,
      "text": "第二種呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 375,
      "start": 690.645,
      "end": 691.738,
      "text": "你要剪影片",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 376,
      "start": 691.738,
      "end": 693.05,
      "text": "同時想在本地",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 377,
      "start": 693.05,
      "end": 694.58,
      "text": "跑一些語言模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 378,
      "start": 694.8,
      "end": 696.322,
      "text": "這一種的甜蜜點在哪",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 379,
      "start": 696.322,
      "end": 696.999,
      "text": "我認為是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 380,
      "start": 696.999,
      "end": 699.029,
      "text": "Mac Studio 六十四",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 381,
      "start": 699.029,
      "end": 700.89,
      "text": "GB,三千七百九十九美元",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 382,
      "start": 701.11,
      "end": 702.803,
      "text": "理由是六十四 GB 剛",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 383,
      "start": 702.803,
      "end": 704.119,
      "text": "好讓三百二十億",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 384,
      "start": 704.119,
      "end": 706.0,
      "text": "參數這一級跑得很舒服",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 385,
      "start": 706.22,
      "end": 707.83,
      "text": "七百億也塞得進去",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 386,
      "start": 708.05,
      "end": 709.599,
      "text": "而且六十四 GB 在",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 387,
      "start": 709.599,
      "end": 711.73,
      "text": "Studio 上必然是四",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 388,
      "start": 711.73,
      "end": 713.86,
      "text": "十核那顆,頻寬六百一十四",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 389,
      "start": 714.08,
      "end": 715.898,
      "text": "你為了容量付的錢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 390,
      "start": 715.898,
      "end": 718.17,
      "text": "順便買到了最高的頻寬",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 391,
      "start": 718.39,
      "end": 720.174,
      "text": "這一級你能跑哪些",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 392,
      "start": 720.174,
      "end": 721.735,
      "text": "選擇一下子變多",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 393,
      "start": 721.735,
      "end": 723.519,
      "text": "三十幾 B 的 MoE",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 394,
      "start": 723.519,
      "end": 725.08,
      "text": "跑起來都很輕鬆",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 395,
      "start": 725.3,
      "end": 727.511,
      "text": "如果你買到一百二十八 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 396,
      "start": 727.511,
      "end": 729.538,
      "text": "那 gpt-oss-120b",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 397,
      "start": 729.538,
      "end": 730.643,
      "text": "是最好的例子",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 398,
      "start": 730.863,
      "end": 733.207,
      "text": "一千一百七十億總參數",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 399,
      "start": 733.207,
      "end": 734.849,
      "text": "六十二點八 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 400,
      "start": 734.849,
      "end": 737.193,
      "text": "但每次只啟用五十一億",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 401,
      "start": 737.413,
      "end": 738.288,
      "text": "第三種呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 402,
      "start": 738.288,
      "end": 740.696,
      "text": "你對本地大模型有很強的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 403,
      "start": 740.696,
      "end": 743.103,
      "text": "需求,你要跑那種真正大的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 404,
      "start": 743.323,
      "end": 745.91,
      "text": "那六十四 GB 夠不夠。不夠",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 405,
      "start": 745.91,
      "end": 748.733,
      "text": "你要看的是二百五十六 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 406,
      "start": 748.953,
      "end": 750.687,
      "text": "甚至五百一十二 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 407,
      "start": 750.687,
      "end": 751.843,
      "text": "的統一記憶體",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 408,
      "start": 752.063,
      "end": 754.781,
      "text": "那個級距只有 Mac Studio",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 409,
      "start": 754.781,
      "end": 756.412,
      "text": "的 M5 Ultra 有",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 410,
      "start": 756.412,
      "end": 758.042,
      "text": "二百五十六 GB 是一",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 411,
      "start": 758.042,
      "end": 759.673,
      "text": "萬零七百九十九美元",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 412,
      "start": 759.893,
      "end": 761.285,
      "text": "為什麼要那麼多",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 413,
      "start": 761.285,
      "end": 763.074,
      "text": "因為真正大的那幾個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 414,
      "start": 763.074,
      "end": 764.863,
      "text": "開源模型是這個量級",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 415,
      "start": 765.083,
      "end": 766.823,
      "text": "DeepSeek 那個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 416,
      "start": 766.823,
      "end": 768.911,
      "text": "V4 Flash,兩千八百四",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 417,
      "start": 768.911,
      "end": 771.173,
      "text": "十億,四位元要一百五十五 GB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 418,
      "start": 771.393,
      "end": 772.332,
      "text": "更極端的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 419,
      "start": 772.332,
      "end": 774.211,
      "text": "Kimi K3 四位",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 420,
      "start": 774.211,
      "end": 776.09,
      "text": "元要一點五一 TB",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 421,
      "start": 776.09,
      "end": 778.203,
      "text": "開源不等於你跑得動",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 422,
      "start": 778.423,
      "end": 781.006,
      "text": "你身邊如果有人也在這幾台之",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 423,
      "start": 781.006,
      "end": 782.993,
      "text": "間猶豫,把這一段轉給他",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 424,
      "start": 783.213,
      "end": 784.712,
      "text": "這三個級距是他要",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 425,
      "start": 784.712,
      "end": 786.023,
      "text": "先搞清楚的東西",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 426,
      "start": 786.243,
      "end": 787.768,
      "text": "五百一十二 GB 那個",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 427,
      "start": 787.768,
      "end": 789.293,
      "text": "版本現在還下不了單",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 428,
      "start": 789.513,
      "end": 792.083,
      "text": "官方說十月下旬才會上市",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 429,
      "start": 792.303,
      "end": 794.307,
      "text": "這一段的價格是跳躍的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 430,
      "start": 794.307,
      "end": 795.309,
      "text": "不是線性的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 431,
      "start": 795.309,
      "end": 797.513,
      "text": "從六十四跳到二百五十六",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 432,
      "start": 797.733,
      "end": 800.383,
      "text": "記憶體四倍,價格接近三倍",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 433,
      "start": 800.603,
      "end": 802.461,
      "text": "所以你要先確定你真的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 434,
      "start": 802.461,
      "end": 804.133,
      "text": "需要跑那麼大的模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 435,
      "start": 804.353,
      "end": 805.963,
      "text": "這筆錢才花得下去",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 436,
      "start": 806.413,
      "end": 808.902,
      "text": "前面講的全部是文字模型",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 437,
      "start": 808.902,
      "end": 810.713,
      "text": "那生圖跟生影片呢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 438,
      "start": 810.933,
      "end": 813.133,
      "text": "這兩件事在 Mac 上是弱的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 439,
      "start": 813.133,
      "end": 814.783,
      "text": "而且弱的地方不一樣",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 440,
      "start": 815.003,
      "end": 815.778,
      "text": "先講影片",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 441,
      "start": 815.778,
      "end": 817.909,
      "text": "因為想在本地跑 AI 的人",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 442,
      "start": 817.909,
      "end": 819.653,
      "text": "很多是衝著這個來的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 443,
      "start": 819.873,
      "end": 821.534,
      "text": "而算力,正是前面講的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 444,
      "start": 821.534,
      "end": 823.563,
      "text": "Apple 這幾代的弱點",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 445,
      "start": 823.783,
      "end": 825.597,
      "text": "而且不只是算力",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 446,
      "start": 825.597,
      "end": 826.633,
      "text": "還有生態",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 447,
      "start": 826.853,
      "end": 829.282,
      "text": "Mac 這邊沒有 TensorRT",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 448,
      "start": 829.282,
      "end": 830.74,
      "text": "那種等級的推論優化",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 449,
      "start": 830.74,
      "end": 832.521,
      "text": ",PyTorch 的編譯加",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 450,
      "start": 832.521,
      "end": 834.303,
      "text": "速跟 Mac 的後端不相容",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 451,
      "start": 834.523,
      "end": 836.501,
      "text": "ComfyUI 在 Mac",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 452,
      "start": 836.501,
      "end": 839.198,
      "text": "上是能跑的,走的是 PyTorch",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 453,
      "start": 839.198,
      "end": 840.636,
      "text": "的 Metal 後端",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 454,
      "start": 840.636,
      "end": 842.074,
      "text": "但有些運算沒實作",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 455,
      "start": 842.074,
      "end": 843.333,
      "text": "會掉回 CPU 跑",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 456,
      "start": 843.553,
      "end": 845.563,
      "text": "在 CUDA 上是裝好就動",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 457,
      "start": 845.783,
      "end": 847.665,
      "text": "M5 的算力是有改善",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 458,
      "start": 847.665,
      "end": 849.964,
      "text": "同一個 app 生同一段五",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 459,
      "start": 849.964,
      "end": 852.264,
      "text": "秒影片,筆電的 M5 Max",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 460,
      "start": 852.264,
      "end": 854.982,
      "text": "四十核兩分鐘,M3 Ultra",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 461,
      "start": 854.982,
      "end": 857.073,
      "text": "八十核要三分二十六秒",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 462,
      "start": 857.293,
      "end": 859.264,
      "text": "但 ComfyUI 不是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 463,
      "start": 859.264,
      "end": 861.432,
      "text": "直接吃到這個算力,中間隔",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 464,
      "start": 861.432,
      "end": 863.206,
      "text": "著 PyTorch 的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 465,
      "start": 863.206,
      "end": 865.571,
      "text": "Metal 後端,M5 新加的",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 466,
      "start": 865.571,
      "end": 867.739,
      "text": "矩陣單元它才剛開始支援",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 467,
      "start": 867.739,
      "end": 870.104,
      "text": "算力本來就是 Mac 的弱項",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 468,
      "start": 870.104,
      "end": 871.68,
      "text": "跟 NVIDIA 比",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 469,
      "start": 871.68,
      "end": 872.863,
      "text": "這一代還是輸",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 470,
      "start": 873.083,
      "end": 874.73,
      "text": "如果這台 Mac 你",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 471,
      "start": 874.73,
      "end": 876.788,
      "text": "本來就要買,它同時是你",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 472,
      "start": 876.788,
      "end": 878.64,
      "text": "的日常機,你的剪接機",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 473,
      "start": 878.86,
      "end": 880.15,
      "text": "你寫程式的機器",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 474,
      "start": 880.37,
      "end": 881.638,
      "text": "那半夜掛著跑",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 475,
      "start": 881.638,
      "end": 883.54,
      "text": "基本上只有電費的錢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 476,
      "start": 883.76,
      "end": 886.389,
      "text": "但是生成的影片速度非常慢",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 477,
      "start": 886.389,
      "end": 888.8,
      "text": "並且還要考量到不是每一",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 478,
      "start": 888.8,
      "end": 891.21,
      "text": "段影片都是可以用的片段",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 479,
      "start": 891.43,
      "end": 894.0,
      "text": "真正能用的秒數,要再打個折",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 480,
      "start": 894.22,
      "end": 896.227,
      "text": "所以如果你的主要目的是",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 481,
      "start": 896.227,
      "end": 897.686,
      "text": "影片生成,那會建議",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 482,
      "start": 897.686,
      "end": 899.51,
      "text": "還是考慮 NVIDIA",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 483,
      "start": 899.96,
      "end": 901.257,
      "text": "最後有一個做法",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 484,
      "start": 901.257,
      "end": 902.74,
      "text": "你不一定用得到它",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 485,
      "start": 902.96,
      "end": 904.587,
      "text": "但我個人認為這解",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 486,
      "start": 904.587,
      "end": 906.01,
      "text": "決方案非常有趣!",
      "source": "video_source_subtitle",
      "authority": "video_source_subtitle"
    },
    {
      "id": 487,
      "start": 906.23,
      "end": 906.898,
      "text": "有一個團隊",
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      "text": "我上面已經幫你們算過了",
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      "id": 529,
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      "end": 1002.53,
      "text": "這批機器九月二十二號出貨",
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      "text": "到時候會有第一批",
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      "id": 538,
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      "text": "真正的實測數字出來",
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      "text": "我會回來把這支影片裡所",
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      "text": "有還沒有數字的地方填滿",
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      "text": "訂閱一下",
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      "text": "另外,你現在卡在哪兩個規格之間",
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      "start": 1015.172,
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      "text": "或者已經下訂了哪一台",
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      "text": "留言告訴我你的用途",
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      "text": "我看看能不能幫你判斷",
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      "start": 1020.9,
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      "text": "我是路可,讓我們一起踹踹看",
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