[Mac撚] 用家/買機集中討論(110) 8GB袋底送別區 暨 M3/M3 Pro苦主安慰區

唔係一樣前2後3? 只係TB4 同TB5既分別?

講緊隻Studio vs 新mini
佢衣家32減去24GB，4+2+2減去3+2，巨體排氣變做熨斗

駁屋企客廳部電視機

有 PC 同 MBP 都照買？

退休鬆手啲等Mac大賣
臨尾攞番個尾彩

唔同性質 可買

袋底得 120GB/s 記憶體頻寬，有啲卻步

但係只係睇general usage, 佢上到16GB 真係屌打同級所有prebuilt windows 機 footprint 又細 一般用家會易入口好多
bandwidth 唔係好似我咁想玩LLM 其實都冇太大差別

噉又係，始終唔係好認同 Windows 用開幾多 RAM，MacOS 就可以買細一半呢個說法

memory bandwidth幾乎係唔需要睇嘅一環
佢係根據嗰款SoC個core count去適當分配嘅，極低機會成為樽頸
M1至M3三代咁多粒SoC淨係得M2 Pro一個係測得出CPU GPU全開係要拎多過200GB/s bandwidth但RAM channel俾唔到

Thanks

加埋閹U跑分
另外改正返原本幾個誤差大嘅數

大體上:
M4 Max閹 = M3 Max滿CPU GPU
M4 Pro閹 = M3 Max閹CPU + M1 Max滿GPU
M4 閹 = M4閹CPU + M3滿GPU

有PC同air，見今次mini可以hdmi 4k120又有16g ram，都想買部駁電視
但買得mini又要買多個外置ssd，本身部PC駁電視又無乜大問題，所以未出手

Geekerwan benchmarked Qwen2.5 7B to 72B on new M4 Pro and M4 Max chips using Ollama
https://www.reddit.com/r/LocalLLaMA/comments/1gmi2em/geekerwan_benchmarked_qwen25_7b_to_72b_on_new_m4/

Summary: M4 Max is about 15-20% faster than M3 Max on most models. M4 Pro is about 55-60% of M4 Max or around two-thirds of M3 Max.

All slower than a 4090, as long as the models fits within memory. Only the Max models can run the 72B model at reasonable speed, around 9 tokens per second for M4 Max.

Acasis隻TB5個write已經係TB4嘅double
read唔知咩事無write咁高，但都已爆
已睇齊Pro / Max機內置SSD速
我諗唔急要enclosure嘅巴打真係忍吓手，出面全部TB3/4都堅係古董
https://weibo.com/ttarticle/p/show?id=2309405098569391800797

我成段字係幫佢排除會拖慢嘅地方，去搵出樽頸響邊，並唔係講緊真係做野個best practice
但如果你用緊部舊機唔夠快，係可以用上面個方法係揸多幾滴效能出嚟 (尤其係事先gen preview)

個catalog係唔需要上面另一條友講要斬件，你可以任留舊edit響database，儲好多都唔會影響d咩
當然去到超撚多，講緊幾十萬幅以上，而你張張都做過好多野，咁就算唔計preview，淨計non-destructive嘅adjustments同埋metadata都已經好大，幾百GB至幾TB
咁大嘅catalog database對一般電腦係開始有logistics問題

用緊m28u 4k 144hz, 一條type c直出, 包埋 3個usb a 插keyboard mouse hdd

可以自行升級ssd

https://youtu.be/bNZzHK4046A?si=5hNjRqVF_ZoLSPAn

屋企有部陳年PC行Win 11，8 gb ram，用黎上網睇戲開下office，一般用見佢用唔滿仲有約2.5 gb ram剩
同樣嘅使用方式，響m2 air上，大約長期剩返1gb ram剩，但見到壓縮記憶體不停增加，小量抄入ssd做分頁檔，ram用量明顯到左接近8gb極限
感覺上Win 11行8gb ram做文書應付得好輕鬆，反而m2 air macos行8gb ram做文書，ram方面部機已經有壓力

https://www.reddit.com/r/mac/comments/1gmpfrb/diy_mac_mini_pro_3dprinted_enclosure_free/?utm_source=share&utm_medium=mweb3x&utm_name=mweb3xcss&utm_term=1&utm_content=share_button

很撚正

不過膠唔散熱,之後出個金屬ver. 就正