What generation? People keep saying AMD is worthless for RT but that's really only true compared to the rtx4000 series and games like cyberpunk.
Games with RT that I've played on AMD that ran well compared to Nvidia (because it's still a performance hog) are metro Exodus enhanced and avatar frontiers of Pandora.
I thoroughly dislike upscaling and fake frames though, so other than games like that it's not for me even if I had a 4080 super instead or the 7900xtx
I'm comparing my 6900xt to a 3080 which are the comparable models.
From the beginning I've been talking about my setup, ray tracing and the fact that the lower performance comes from me choosing an AMD setup at the time, I don't care what the next gen performance was, it wasn't available, I don't care what the previous gen performance was, it wasn't part of the choices when I built my rig.
A 50% bump in performance is pretty major, especially from 40 to 60 FPS.