Hey!
I bought the AMD 7900XT GPU last week and have been trying some different options here and there.
I did some research before buying it and saw good fps across all the games I wanted to play, I tried benchmarking the same games and easily got 80 fps lower than the original benchmark.
Temps are all good so it's not thermal throttling.
Using the Ryzen 7 3700x, 2x8 GB Corsair RAM