High bandwidth, low latency unified memory is a central component of the M series architecture and a key reason those chips perform so well at their power profi

High bandwidth, low latency unified memory is a central component of the M series architecture and a key reason those chips perform so well at their power profile. I'm not sure what "evidence" I could provide that would convince you since we don't have high latency Apple chips to benchmark against. However, there's a reason VRAM is soldered onto GPUs.