So I recently upgraded my Asus GTX 1060 Dual OC 6GB to an XFX SWFT RX 6800 16GB and now my PC seems to underperform compared to the tons of benchmarks I've watched like a maniac before upgrading. Example: AC Valhalla with High settings tends to drop below 60fps when in detailed areas, while in Ultra High it does the same (in ultra it seems to be more stable but it never goes over 70fps).
I've done DDU so don't worry about that. Currently using AMD Software: Adrenalin Edition.
Current build:
Mobo: Asus B360-f CPU: i7-8700k 3.7ghz RAM: Corsair DDR4 2666mhz (2x8GB) GPU: RX 6800 16GB PSU: Corsair RM650 Modular 650w (GPU is connected to 1 double headed PCIe, ik it's not recommended but it's all I got rn, don't tell me this is the main problem causing those spikes bcs I'll cry T-T).
Is there anything I can do to improve my FPS? (also if the only problem is my cpu which is bottlenecking I'm going to upgrade to an R7 7700x and DDR5 but I am still stuck on this current build until summer starts and I'd like for it to perform decently until then...)