AMDs deep learning libraries are very bad the last time I checked, nobody uses amd in that space for that reason. Nvidia has a quazi monopoly, that's the main reason for the price difference IMHO.
nearly 95% of deeplearning github repos are "tested using cuda gpu - others, not so sure"
the only way to out-run nvidia is to have 3~10x better bang-for-buck.
Or AMD can just provide a "DIY unlimited gpu RAM upgrade" kit -- a lot of people are buying macstudio 128gb ram because of its "bigger ram-for-buck" than nvidia gpus
Explain why the performance difference does not matter?
AMD does only 33% better with a chip that has 2X transistors and 2X memory.