Why LLMs Need GPUs, Not CPUs: Memory Bandwidth and Compute Explained (With Speed-Ceiling Math)
Why LLMs need GPUs, not CPUs: memory bandwidth and parallel compute explained, with token-speed ceilings for 8B and 70B models and when CPU is fine.
Why LLMs need GPUs, not CPUs: memory bandwidth and parallel compute explained, with token-speed ceilings for 8B and 70B models and when CPU is fine.
大模型为什么需要GPU而不是CPU?用显存带宽与并行算力讲清原因,附 8B、70B 模型的 token 速度上限算例,以及 CPU 什么时候也够用。