Can Apple Silicon GPU and CPU work together?

[shouyiwang]

I found that even the entire model is loaded into Nvidia's GPU, the CPU still operates at full capacity during inference. So, what is CPU doing to help GPU?

Then why is the CPU idle when using GPU acceleration on Apple Silicon? If the CPU is also utilized, can it speed up the process? Or is there no benefit due to the limitation of RAM throughput?

Can someone please share some technical details? Thx