Previous video comparing visual differences (with a screenshot of the summary table and a very good comment on the whole topic by coyotino):
https://beehaw.org/post/16695979
Radeon 7900 XTX performance cost of good RT configurations at 4K:
https://i.imgur.com/x1qpE92.png
Geforce 4090 performance cost of good RT configurations at 4K:
https://i.imgur.com/kVhNWiY.png
Comparison:
I’ve used RT in various games, and for some, it makes a positive difference in the experience (gameplay only, not fps) and for others, the difference is unnoticeable or even negative.
Nvidia is still the RT king, but it’s not like classic lighting techniques are bad, either. I’d give up my RTX 3060ti for a 6700XT in a heartbeat to have better Linux compatibility.