For reference, DDR4-3200 in quad channel is ~100 GB/s while a 3090's VRAM is 960 GB/s. Of course, most consumers only have dual channel. M1 Pro is 200 and M1 M

For reference, DDR4-3200 in quad channel is ~100 GB/s while a 3090's VRAM is 960 GB/s. Of course, most consumers only have dual channel. M1 Pro is 200 and M1 Max is 400. Which is slow for GPU memory, but incredible for main memory -- although I'm not sure how much of that a single core can actually pull.