Simple Question.. what is the best Graphics Card for MSFS?

Well after some testing it looks like my CPU / SSD / Ram performance is ok, did not get anything maxed out, The GPU shows about 80-90% utilized in dense scenery locations.

Current settings:
Render Scaling: 160
Terrain Detail: 250
Objects Detail: 180

Other settings on ULTRA.

I have smooth performance in 99% of cases, but my FPS looks very low? Don’t understand that. And it does say I’m limited by GPU.
fps

I guess my main question is:
Would I be able to increase graphics quality and GPU performance if I upgrade from my 1080Ti to say a 3080 Card?