I have a 5900x and a 2080S with 32G of ram. Vulcan triple buffering didn't work and it crashed on me in my brief time trying it. DX11 has been fine mostly. No crashes, but after playing for a while I'll occasionally just have my fps tank and start stuttering and have to quit the game and relaunch and it'll be fine. Running basically ultra 4k dlss on balanced or performance. Tried both, both give me 60fps.