Hmm thats interesting , the 1080 runs ‘ok’ … but as soon as I crank the complexity up its stuttering , and im mainly using VR now , so I guess thats another consideration.
If you are considering a 3080 then I also consider a better CPU as well, especially for FS2020.
But then a motherboard, new PSU, SSD, etc; at the end just get a new system.
I had a 1080ti with 3900x, the sim was running fine, then upgraded to 3080.
There was some improvement in the average framerate, but not that spectacular.
In bush trips, I can get now 90-100 fps on ultra. In dense areas, cities around 40-50, plus the “normal” stuttering.
If you have money to burn then get a high-end PC (if CPU and GPU available at all) and hope that eventually, Asobo will optimize the performance.
I have 3080 and it runs well - but not perfect in those heavy dense areas (JFK, LAX, EGLL …) Still get about 30-40fps in the A320, but can drop to low 20s at times.
Agree with comments about upgrading CPU as well otherwise you will simply push problem there and be limited by main thread.
30-40FPS is perfect for a flight sim of this magnitude. Lots of flight simulators have lower frame rates. 20FPS is the minimum regulated by the FAA to use your experience to get into a flight school.