When I was running my AW3420DW 34" Ultrawide on my other rig i7-9700K not overclocked and a 2080Super @ 120hz it ran just fine. I got out of the FPS number thing months ago and I think the 1080ti is a better gpu then the 2080Super. I also tested the monitor @ 85hz and saw no difference in performance between 120hz. The monitor has its own tweaks too so I dont think your gonna have any issues but if your more worried about a few fps numbers then thats gonna be an issue on your part. The 34" monitor and dcs is amazing.