AMD GPUs aren't very attractive to ML folks because they don't outshine Nvidia in any single aspect. Blasting lots of RAM onto a GPU would make it attractive immediately with lots of attention from devs occupied with more interesting things.
also i didn't know there was a 192GB amd GPU.
For local inference, 7900 XTX has 24 GB of VRAM for less than $1000.
At what threshold of VRAM would you start being interested in MI?