42 minutes ago, AnkH said:

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...

resolution doesn't really matter with the 5090...fs will still be cpu bound. 

7 minutes ago, regis9 said:

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 think he's asking if you have the secondary power connector hooked up to the 5090 card (the connection inside the case)

3 minutes ago, Mace said:

I think he's asking if you have the secondary power connector hooked up to the 5090 card (the connection inside the case)

Thanks, I'm not sure I know what that is?  What I have is the connector that came with the GPU that goes into the side of the GPU itself, that has four input plugs, each of those is connected to a PCIe cable that goes to my PSU.  Each one is an individual cable, no daisy chaining.

Here's two more pieces of information, CPU-Z screenshots from my CYYZ iFly scenario for my CPU and RAM.

https://imgur.com/Yl3EbOD

https://imgur.com/ogCpTV8

Thanks,

Dave

Your TAA is the issue, if you select AMD FSR then your FPS should increase, combine it with your DLSS FG.

Once you lock your frame rate, MSFS will stays that way, and FG will do the rest of the work.

Your other setting are fine.

Also, if you are comfortable, you can mess around the settings in UserCfg.opt

For the power, is the card using the 600w power connection direct to the PSU? i am assuming you are not using any adaptor to convert 600w using 3 pcie 8 pin connections.

 

Edited September 13, 2025Sep 13 by avistudent

11 hours ago, regis9 said:

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

Its very simple. Most likely you where cpu limited before you upgraded. A new GPU does maybe af smoother play and maybe higher Settings allowed for THOSE Settings that are NOT cpu intensive (like ambient occlusion or TLOD is, they are cpu related primarily).

So if you where cpu mainthread limited, adding a 5090 for a 4080 does not gain many fps while using the same settings (maybe a bit...like 5 % or so). 

You get VRAM headroom and high GPU clock speeds so you will be able to crank GPU related settings up...like volumetric clouds to ultra....or....shadows, etc. 

 

42 minutes ago, avistudent said:

Your TAA is the issue, if you select AMD FSR then your FPS should increase, combine it with your DLSS FG.

Once you lock your frame rate, MSFS will stays that way, and FG will do the rest of the work.

Thanks I’ll give that a try.

43 minutes ago, avistudent said:

For the power, is the card using the 600w power connection direct to the PSU? i am assuming you are not using any adaptor to convert 600w using 3 pcie 8 pin connections.

it’s an adapter that came with the card fed by 4 pcie 8 pin connectors.

 

14 minutes ago, mpo910 said:

Its very simple. Most likely you where cpu limited before you upgraded. A new GPU does maybe af smoother play and maybe higher Settings allowed for THOSE Settings that are NOT cpu intensive (like ambient occlusion or TLOD is, they are cpu related primarily).

Thanks, that was my assumption going in, and if that’s the case I’m happy to let frame gen 4x do its thing and go from there.  It just seemed like what I’m seeing is not what others have reported.

I much appreciate all the replies here.

I also get around 30FPS with AI traffic on a big hub using any complex addon aircraft (PMDG, Fenix, IniA350). So your pure numbers at CYYZ look totally reasonable to me. 

12 hours ago, V1ROTA7E said:

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

45fps with everything maxed sounds like hyperbole. 

Thanks for your feedback. I have spent alot of hours tuning my system. I am overclocking/undervolting the GPU and CPU. I also use Autofps with the min TLOD set at 50 on the ground with a max TLOD of 200 above 1000ft. Resolution is 2K.  Rolling cache is set at 100GB. An example airport is EDDF with the fenix A320. 

Edited September 14, 2025Sep 14 by Shrek1970

 

can an admin delete this reply i pushed send twice

12 hours ago, V1ROTA7E said:

 

Edited September 14, 2025Sep 14 by Shrek1970

12 hours ago, V1ROTA7E said:

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

45fps with everything maxed sounds like hyperbole. 

Its not. I am locked at 40 BEFORE framegen and it stays pegged at 80 with pretty much ultra settings sitting at the terminal with a TLOD of 300. Just like the other user my system is thoroughly tuned. . My only bugaboo is occasionally tipping over the VRAM at the Mega Airports Apart from that my graphic card can hold its own at 2k ultrawide and its not a 5090.

On 9/12/2025 at 6:52 PM, spearmint_flyer said:

DO NOT DO THE RTSS SETTINGS PART.

I've always used RTSS Front Edge Sync and have exquisite stutter-free performance everywhere with frame rates commensurate w/ the hardware.  Until recently I've avoided NV DLSS FG and so am very familiar with how performance is with planes like Fenix A320 and I-Fly 737 MAX 8 out of and in to demanding airports.  Since a month or so before SU3 frame rate dropped in 2024 by maybe 15%.  My target had been 50FPS-native, which I could sustain pretty much everywhere w/ all Ultra, TLOD 150 or so on the ground.  Now that's closer to 42 or 44FPS-native.  Because of this I tried NV DLSS FG again and to my sheer delight the 2nd display focus and back to main screen judder was completely gone.   Next, there was some improvement in the flicker/strobe one gets in high contrast surfaces/tarmac comprised of light and dark particles.  Not completely better, but improved.  Finally, I learned what many knew:  unlocking rate all but completely eliminates the flicker/strobe issue such that very little is sacrificed when you enable frame generation.  So my practice now is simple:  when launched into the VC I simply hit the * key which unlocks my locked rate of 60FPS-fg using RTSS Front Edge Sync w/ passive waiting enabled.  In any case a feature of RTSS is that one can assign a hotkey to enable/disable a preset locked rate and also can increase or decrease the rate using key combinations, and this can be done during runtime so no need to stop the sim or interact with a different app.  I stay wide open from launch, so including preflight, pushback, taxi, right thru takeoff up to a few thousand feet.  After that I hit the * again to re-lock at my preferred rate of 60FPS-fg.  What this translates to of course is a base rate of 30FPS-native, which my hardware can handle easily at any airport in any plane in any weather often with much room to spare.  And ultimately it's similar enough in panning quality etc to wide open even w/ rates of 120FPS-fg or more.  Yes I can see the diff but practically speaking for me it's not important.  And bonus of course:  heat and power go down dramatically from wide open.   Some people say they prefer using their hardware to the max, but I'm more interested in efficiency.  And honestly I feel since SU3 arrived it has reached perfection:  amazing image quality and stability, essentially zero stutters anywhere anytime, and all at a minimum rate of 60FPS-fg.  That is pretty much:  good enough

So something's def wrong w/ your set up.  Chipset drivers up to date?

Edited September 14, 2025Sep 14 by Noel

I just upgraded to the 9800X3d and I must say, this is sim perfection. Along with SU4, I'm getting absolutely smooth performance with no stutters anywhere. Flying the A350 into and out of Inibuilds EGLL.

This CPU is something else.

3 hours ago, Maxis said:

Its not. I am locked at 40 BEFORE framegen and it stays pegged at 80 with pretty much ultra settings sitting at the terminal with a TLOD of 300. Just like the other user my system is thoroughly tuned. . My only bugaboo is occasionally tipping over the VRAM at the Mega Airports Apart from that my graphic card can hold its own at 2k ultrawide and it’s not a 5090.

My point is that when people say “all settings ultra” that is not the case. It’s misleading. Ultra is everything firewalled. Not using autoFPS, dynamic settings, etc. ultra means ultra. With my settings fully maxed, and a well tuned system, I can maybe get 27-30 at a heavy airport with an add on aircraft and batc/si at a setting of 8. Is it smooth…sure. But using 4x frame gen it’d be nice to have a consistent 120 with no dips….i know, silly thing to complain about. But with frame gen, frame pacing is everything, and with SU3, I’ve noticed that something has changed with LODs causing brief stuttering while things load in. The only caveat is I’ve completely disabled the rolling cache, and downloaded streamed content that is heavy (Bogota SKBO for example). Tools like autoFPS are great, but I do notice when flying out of mountainous areas that the reduced LOD makes things look less than desirable. Taxiway and runway textures also get blurred, which is a personal pet peeve. 

On 9/13/2025 at 9:27 AM, regis9 said:

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

 

I need to see your full NVIDIA settings. Open the Nvidia Control Panel, show me that. Also, go into the control panel and graphics settings. Make sure MS2024 is set to use the GPU and not set to auto.Harware Scheduled GPU acceleration should also be on.

13 hours ago, V1ROTA7E said:

My point is that when people say “all settings ultra” that is not the case. It’s misleading. Ultra is everything firewalled. Not using autoFPS, dynamic settings, etc. ultra means ultra. With my settings fully maxed, and a well tuned system, I can maybe get 27-30 at a heavy airport with an add on aircraft and batc/si at a setting of 8. Is it smooth…sure. But using 4x frame gen it’d be nice to have a consistent 120 with no dips….i know, silly thing to complain about. But with frame gen, frame pacing is everything, and with SU3, I’ve noticed that something has changed with LODs causing brief stuttering while things load in. The only caveat is I’ve completely disabled the rolling cache, and downloaded streamed content that is heavy (Bogota SKBO for example). Tools like autoFPS are great, but I do notice when flying out of mountainous areas that the reduced LOD makes things look less than desirable. Taxiway and runway textures also get blurred, which is a personal pet peeve. 

1. Ultra is not everything firewalled

2. I dont use dynamic FPS or auto FPS or any dynamic adjustments

 

The only thing i do is sensibly lock my frames then insert a frame gen algorithm and minor adjustments to the items that are important to me (Such as having AIG as addon traffic and needing MORE than the standard 200 TLOD which btw is is the default for Ultra.