Hello, so I recently took the plunge and bought an RTX5090.  I'm looking for feedback on whether what I'm seeing is what I should expect as the non frame gen performance doesn't really seem any better than what I had with my 4080.  The 4x frame gen is impressive, and more than makes up for it in most situations, but even with my old settings I don't seem to be seeing much difference if any at all.  I'm certainly CPU limited with the RTX5090.

Here are a few screenshots to show you what my hardware was doing and the FPS results.  All were in the iFly 737MAX with Beyond ATC traffic active (7/10) in 4k.

This is in CYYZ at the gate.  non FG FPS is 18...I'm actually sure I would get more than that previously.  I wish I had done some benchmarks but I think 20-25 would be average:

https://imgur.com/Pw7F4vL

Here is what was going on GPU-wise according to the nvidia app.  GPU is only drawing 150 watts and isn't breaking a sweat:

https://imgur.com/HA3AswB

Here I am at cruise, well away from the resource hungry Toronto area, still only getting 23fps without frame gen.  Now in this case, I'm pretty sure I'd have been in the 30-40 fps range at cruise which shouldn't be very demanding on the CPU.

https://imgur.com/h4ucrqa

Overall, I'm still happy with the upgrade, no more VRAM concerns and the 4x frame gen really makes the rest of it not a concern other than in the super dense areas like flying into LAX, where you can tell the base frame rate is very low (I think I got down to around 13-15FPS in the A350 at default LAX).

I have a 1000W Corsair PSU, and I have the GPU set to prefer maximum performance.

At the end of the day, I'm sure this comes down to CPU limitations, but it doesn't look like either the CPU or GPU are going full out according to the percentages in the Steam performance information in the screenshots.  I'm just a bit perplexed as to why the non-frame rate performance doesn't seem to have changed at all.

Of interest, the GPU seems to have a lot of headroom as I can crank all settings to full and the frame rates don't really change.

I'm not trying to be "woe is me" with my RTX5090, I just want to be sure I'm not missing something given the size of investment.

Thanks for any help!

Dave

Edited September 13, 2025Sep 13 by regis9

That's not normal. I have the same GPU and CPU as you and I get 65-90 FPS. Which I lock to 30FPS using max frame rate and then set FG X3 for 120 FPS. Which matches my refresh rate. It never goes below that with 2024.  

 Something is limiting your FPS. What programs are you running? For me personally, I've was using RTSS and Nvidia control panel with a bunch of different configurations. It ruined everything. Now I just set “prefer maximum performance” and VSYNC “on” in the Nvidia control panel. Got rid of all the other word not allowed and did what I wrote on my first paragraph.

Also, what are your doing with affinity mask? Do you have Process Lasso or anything like that? 

There is definitely something limiting your FPS. 

Edited September 13, 2025Sep 13 by spearmint_flyer
Grammar.

Thanks, I do have Nvidia control panel with prefer maximum performance enabled, but I don't mess around with anything else in there.  I don't use process lasso or mess around with affinity mask.

I’ll add that if I take a default aircraft and fly in the middle of nowhere I’ll hit around 50fps max without FG.

10 minutes ago, regis9 said:

I’ll add that if I take a default aircraft and fly in the middle of nowhere I’ll hit around 50fps max without FG.

Wha? With a 5090? Somethings not right....

15 minutes ago, regis9 said:

I’ll add that if I take a default aircraft and fly in the middle of nowhere I’ll hit around 50fps max without FG.

You're going to have to give us a lot more info. First thing I would do is reinstall the driver. Then follow my process here to reset all your settings and caches in MSFS. 

Delete your driver using DDU in safe mode. Reinstall the Nvidia driver first. Then do what I suggested. Let us know what the result is. 
DO NOT DO THE RTSS SETTINGS PART. This was before my latest adjustments. 

Edited September 13, 2025Sep 13 by spearmint_flyer

Something is not right with your system. I have a 9950x3d and a 5090. With all settings at ultra and BATC set to 10 for all traffic i get 45fps without frame gen at the most complex airports.  I used nvidia clean install for my graphics drivers and run project lasso with cores 0-15 only for msfs2024, this will ensure you are using the 3D cache of your CPU.

Edited September 13, 2025Sep 13 by Shrek1970

2 hours ago, spearmint_flyer said:

You're going to have to give us a lot more info. First thing I would do is reinstall the driver. Then follow my process here to reset all your settings and caches in MSFS. 

Delete your driver using DDU in safe mode. Reinstall the Nvidia driver first. Then do what I suggested. Let us know what the result is. 
DO NOT DO THE RTSS SETTINGS PART. This was before my latest adjustments. 

Thanks, I went through those steps and performance hasn't changed.  What additional info can I provide?

2 hours ago, regis9 said:

Thanks, I went through those steps and performance hasn't changed.  What additional info can I provide?

Screenshots of your settings, windows settings, all the information you can provide. Also, just to be sure, it is plugged into the GPU right?

5 hours ago, Shrek1970 said:

Something is not right with your system. I have a 9950x3d and a 5090. 

You compare a 7800X3D with a 9950X3D, hope you are aware of this. It might be that those additional 8 cores of your CPU might do the trick, even without 3D cache.

It seems that the 9950X3D is remarkably more powerful than those 8-core X3Ds in MSFS2024, something I still try to find out. But with no useful benchmarks available, its difficult to answer...

Here is a benchmark 9950x3d vs 9800x3d in msfs 24 @ 1080, https://www.tomshardware.com/pc-components/cpus/amd-ryzen-9-9950x3d-vs-amd-ryzen-7-9800x3d-faceoff. 153 fps vs 147. Would like to see  benchmarks at higher resolutions.

10 hours ago, Shrek1970 said:

With all settings at ultra and BATC set to 10 for all traffic i get 45fps without frame gen at the most complex airports.

What’s your TLOD, Terrain pre-cache, rolling cache size, airport in use, and aircraft to test. 
 

45fps with everything maxed sounds like hyperbole. 

1 hour ago, Maladoror said:

Here is a benchmark 9950x3d vs 9800x3d in msfs 24 @ 1080, https://www.tomshardware.com/pc-components/cpus/amd-ryzen-9-9950x3d-vs-amd-ryzen-7-9800x3d-faceoff. 153 fps vs 147. Would like to see  benchmarks at higher resolutions.

that is what I meant, those benchmarks are pretty much useless. You never get anything near those numbers on a complex addon airport with AI traffic and a complex addon aircraft...

1 hour ago, V1ROTA7E said:

 

45fps with everything maxed sounds like hyperbole. 

Not at 1080p... I still wonder how many forget to mention the resolution used when they make bold statements about their super duper FPS numbers...

7 hours ago, spearmint_flyer said:

Screenshots of your settings, windows settings, all the information you can provide. Also, just to be sure, it is plugged into the GPU right?

I assume you mean is it plugged into the PSU?  My monitor is plugged into the GPU.  Interestingly, when I first got the card I only had three PCIe PSU cables so that's what I went with after reading it would work with a slight performance hit.  I assumed that was the cause of the performance I was seeing, but after buying and installing a fourth PCIe PSU cable the result was the same.

I should mention I'm on SU3, not in the SU4 beta.

Here are my display settings in MSFS.  Nvidia suggested basically maxing everything out.  I'll note again though that my starting point was my previous 4080 settings, a mix of high to ultra (ultra on low impact items)...biggest thing to note I think is I'm keeping TLOD at 100 in urban areas as I know that's a big CPU draw.

https://imgur.com/FInjyi0

https://imgur.com/ci6dpdc

https://imgur.com/V6nKc4b

https://imgur.com/UhxF86s

Here's the dev mode FPS counter in my high stress test of iFly @ Fly Tampa CYYZ with BATC traffic at 7, FG turned off, definitely CPU limited here:

https://imgur.com/i5i5vTL

And with a default helicopter in the middle of nowhere, GPU limited:

https://imgur.com/dlJqkS6

Here are my windows display settings:

https://imgur.com/pStALKE

https://imgur.com/7ZXuAAE