I recently came across this site https://pc-builds.com/ that among other things has various calculators that enable you check out CPU/GPU combinations for bottlenecks and expected FPS in many games including MSFS2020.  In my case it indicated that my 9900KF/3080ti was well balanced ie no bottlenecks and with the ultra preset should give a minimum FPS of 48 which seems about right for a default aircraft and default scenery and no AI.  But what it also showed was that if I kept the 9900KF and swapped out the 3080ti for a 4080 the calculator predicted  no increase in FPS.  Alternatively if I kept the 3080ti and swapped out the 9900KF for a 13900KF the calculator predicted a vey modest increase in minimum FPS  to 51.  It was only when I replaced both the CPU and the GPU with a 13900K and a 4080 respectively that the calculator predicted a doubling of minimum FPS to 99.  I found this all very useful in planning out where I might go with a future hardware upgrade.  It seems just replacing the CPU/motherboard  and keeping the 3080ti doesn't, after considerable expense, achieve much.  Alternatively keeping the 9900KF and replacing the 3080ti with a 4080 doesn't gain me anything unless I enable FG which might work but it would be a roll of the dice.

Bruce

10 hours ago, brucewtb said:

I recently came across this site https://pc-builds.com/ that among other things has various calculators that enable you check out CPU/GPU combinations for bottlenecks and expected FPS in many games including MSFS2020

I just tried this and if told me the graphics card in my 13900k/4090 system was too weak for the task and I should upgrade it. Yikes! 🥺

7 hours ago, odourboy said:

I just tried this and if told me the graphics card in my 13900k/4090 system was too weak for the task and I should upgrade it. Yikes! 🥺

Interesting. For my 5800X3D/4090 in MSFS at 6K (roughly what I run VR at), it says I have a perfect match.

2 hours ago, Reset XPDR said:

Interesting. For my 5800X3D/4090 in MSFS at 6K (roughly what I run VR at), it says I have a perfect match.

That makes no sense since your CPU is even more capable.  🤔 

1 hour ago, odourboy said:

That makes no sense since your CPU is even more capable.  🤔 

Well if I change my CPU to a 13900K, it says my GPU is under powered by 46%, suggesting the 13900K gives double the performance in MSFS which I don't believe to be true as I believe they perform relatively similar in MSFS. Very strange.

3 hours ago, Reset XPDR said:

Well if I change my CPU to a 13900K, it says my GPU is under powered by 46%, suggesting the 13900K gives double the performance in MSFS which I don't believe to be true as I believe they perform relatively similar in MSFS. Very strange.

So hard to know what to make of this site although I have seen other benchmarks suggesting the 13900K is stronger in MSFS20220 than the 5800X3D but not by the margin indicated here.  Anyhow the point I was trying to make is that you need to be careful in doing partial system upgrades to avoid just wasting money.

Bruce