I just upgraded to the 7900 xt, have a 3900x cpu and 32 gig ram. I have only been able to squeeze out about same fps as you with most things ultra. Had about 17 fps with the 6700xt and most settings on high to medium and have 1080p. Noticed GPU utilization was around upper 80%, and cpu around 25%. Is that about the best fps I am going to get? Really thought I would pick up more, kind of disappointed. I have tried a number of things to get more. I can say visually it looks better.