RX Vegas running hot when NVIDIA has no heat issues in the last decade
RX 480, 580, 590 having massive driver issues with modded Terraria and others and being consistently outperformed by NVIDIA cards for a similar price
Secondhand value being utter trash, no one wants them because NVIDIA is just the better choice
Recalls due to being utter crap and killing PCs
Radeon VII being a laughable crapshow
AMD can't do tesselation and doesn't support CUDA
Did I mention drivers? And overlay being screwed up for many thousands of users
RX 5500 being terrible value for the price
No ray tracing
Oh and did I mention heat and driver issues?
AMD Radeon more like GayMD Gaydeon
Friend got a secondhand (*shudder*) Vega 56 and I told him he would have been happier with an NVIDIA card, the AMD card will go out quicker than he can spell AMD, he tried to argue that undervolting the card will fix the heat issues but you shouldn't have to do that in the first place!
There's a good reason why laptops have Intel CPUs and NVIDIA cards.
/soapbox