I thought it was fairly clear from Apple’s comments that it is essentially single function hardware that does all of the processing for AR/VR. I mean, they say

I thought it was fairly clear from Apple’s comments that it is essentially single function hardware that does all of the processing for AR/VR. I mean, they say that it is all done inside 12ms. There’s no way that it is just a GPGPU. Modern GPGPUs, particularly the NVIDIA stack, have a bunch of single function units internally which do things like optical flow on the image buffers etc. but similarity sort of stops there You can do a lot with not much if it is all specialised hardware. Some of the wider features of the chip are due to the huge data bandwidth. But general purpose processing is a little slow for this task, certainly at this power envelope