Unverified50% confidenceFactExact time
16GB of VRAM determines the size of models that can be fully loaded onto the GPU, while 64GB of system memory allows larger models to run via CPU offloading, but at reduced speed.
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10/30/2026
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UnverifiedGPU上下文切换需保存完整GPU状态（包括寄存器文件、共享内存和L1缓存），数据量可达数百MB，而CPU上下文切换仅需保存几KB80% similarUnverifiedIf the GPU is already a bottleneck at the 256GB configuration, doubling the memory to 512GB will not improve GPU compute, and loading larger models will instead result in slower inference.78% similarUnverifiedGPU 推理速度通常是纯 CPU 的 5-20 倍，当模型太大无法放入显存时部分层会卸载到内存由 CPU 处理（混合运行/partial offload）78% similarUnverifiedWhether a model fits entirely in VRAM is more important than the absolute size of the model file; once CPU offloading occurs, the data transfer overhead between GPU and CPU negates the space advantage of a smaller model.77% similar
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