Edited to remove incorrect info.
https://www.nvidia.com/en-us/cmp/
This is all a scheme to stop the used market from ruining their MSRP pricing.
https://www.tomshardware.com/news/amd-rdna-mining-graphics-c...
AMD isn't even going to limit performance on gaming cards, nor are they using a different node for their mining cards like NVIDIA. They are straight-up just going to shunt wafers over to mining cards, while letting miners have both the mining cards and the gaming cards.