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Poor Performance with NVIDIA 4090

Featured Replies

54 minutes ago, Cpt_Piett said:

Thanks for sharing this! I'm sure it will be of help for other 4090 users that may be struggling to get the maximum potential out of this card. And you're certainly not the first to have issues. I struggled at first and found the criteria for getting DLSS3 to work confusing. I've seen users on the official forums struggle too. 

Just a note on V-Sync, from Digital Foundry

Basically G-Sync allows variable refresh rate without tearing below the monitor’s max refresh rate, while v-sync prevents tearing above it. 

Apparently nVidia claims V-Sync is currently not supported to prevent uneven pacing. DF seems to have found this to be the case with MSFS, i.e., v-Sync and DLSS3 leads to stuttery and uneven movement even at a perfect 120fps.

This can tend to complicate things further, so if you're currently happy with your settings I wouldn't worry about it. 

You can use RivaTuner option X/2 -1.
On my 120HZ screen it gives me 60 FPS without tearing and stuttering

MSI Tomahawk Z790, I7-13700K, DDR5 6000mhz, MSI 4090, 3x SSD 980 PRO, Corsair 360 Liguid CPU cooler, Corsair H1200V2 power.

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26 minutes ago, altenae said:

You can use RivaTuner option X/2 -1.
On my 120HZ screen it gives me 60 FPS without tearing and stuttering

Thanks, I'll try RTSS but with a 120Hz limit and see how it is. 

I tried it but couldn't test it as I couldn't reach the max refresh rate of 120Hz. Then I realized I'm in SU10 hence no DLSS3. Got 117 though i.e. with DLSS3 on I would be at... 234fps 🤪

Edited by Cpt_Piett

7950X3D | RTX 4090 | 64GB DDR5

3 hours ago, elee said:

Poor Performance with NVIDIA 4090 (RESOLVED)

Causes
 

Talk about a wet cat hoola hoop party at a mongoose ranch. I thought configurations, editing and tweaking was going to be a thing of the past with this 'new' sim. Glad you got it sorted and hope you have some hair left on your head.

1 hour ago, Cpt_Piett said:

with DLSS3 on I would be at... 234fps

In SU11. Not 234fps, but close enough. Settings: DLSS performance, frame generation on, ultra settings. Basically the image is rendered at 1080p and upscaled to 2160p.  

3PTdnrY.jpg

With DLSS quality (image render = 1440p) fps is around 180.

Disclaimer: Before you all come at me like a pack of wolves - I just wanted to see how high it would go. And btw it's a pretty meaningless test as I'm over the fairly remote Hawaiian island of Hawai'i with not much scenery to render.

7950X3D | RTX 4090 | 64GB DDR5

 

Good video from Jay explaining how your computer parts interact with each other, and where bottle necks can occur. As Jay says, without the right parts working together, 'you're leaving fps (and money) on the table'.

Murray Dreyer

4 hours ago, elee said:

As @Cpt_Piett indicates, we need to make sure we have:

  • latest nVidia game ready driver (522.25) or higher
  • HAGS on (Windows Graphics settings)
  • SU11 beta (or SU11 release when available)
  • DX12
  • DLSS then DLAA

Just realized there's no need for DLSS+DLAA. There's not even a need for DLSS. TAA + frame generation is a perfectly viable option. 

7eWTs24.jpg

25 minutes ago, VeryBumpy said:

Talk about a wet cat hoola hoop party at a mongoose ranch. I thought configurations, editing and tweaking was going to be a thing of the past with this 'new' sim. Glad you got it sorted and hope you have some hair left on your head.

Haha, we're not there yet. New tech, new settings, beta...

Edited by Cpt_Piett

7950X3D | RTX 4090 | 64GB DDR5

Just did a series of tests over several US cities and airports:

I think that'll be all with the testing from my side. Would be interesting to hear from others and how we can fine-tune the settings to get the best experience. 

7950X3D | RTX 4090 | 64GB DDR5

8 hours ago, Cpt_Piett said:

In SU11. Not 234fps, but close enough. Settings: DLSS performance, frame generation on, ultra settings. Basically the image is rendered at 1080p and upscaled to 2160p.  

3PTdnrY.jpg

With DLSS quality (image render = 1440p) fps is around 180.

Disclaimer: Before you all come at me like a pack of wolves - I just wanted to see how high it would go. And btw it's a pretty meaningless test as I'm over the fairly remote Hawaiian island of Hawai'i with not much scenery to render.

Today I am going to install the 4090. I first will test it with my current SU10 setup so I can see if all better hardware gives that 7% higher franerate compared to the 3090.

Then I will opt in the SU11 beta.
I have 4K tv’s sonI can set frequency at 20/30/60 hertz.. Will set them to 60.

Is HAGS necessary? Do not have it enabled now.

Other tips or things to try ?

Thanks

 

 

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

2 hours ago, GSalden said:

Today I am going to install the 4090. I first will test it with my current SU10 setup so I can see if all better hardware gives that 7% higher franerate compared to the 3090.

Then I will opt in the SU11 beta.
I have 4K tv’s sonI can set frequency at 20/30/60 hertz.. Will set them to 60.

Is HAGS necessary? Do not have it enabled now.

Other tips or things to try ?

Thanks

 

 

I've seen 25-30% overall higher fps going from 3090>=4090 without frame generation. On a single display though. 

HAGS is not necessary unless you want to use frame generation. 

Other things - I think I've written most things I've learned about the 4090 in this thread. There's also some threads that got moved to the monitor section.

I'll be avaiting your assesment Gerard, once you get everything up and running. Perhaps some news will be coming in from Northumberland too during the day 🙂 

7950X3D | RTX 4090 | 64GB DDR5

Just installed the card. Ps 1000W that was already build in the pc.

Bios immediately gave a message that I installed another cpu ? ?My wireless keyboard/mouse stopped working.I have connected a wired keyboard/mouse.

Restarting takes at least 20 sec longer.

I will reinstall thee 3090 to see if the wireless keyboard/mouse will work again.

The 1000W PS is stabilized and imho is enough , but I have the new 1300W PS here.

- - - 

Update : the new card pushed the USB3 connector so it came loose from the mobo.

I am going to update to the latest firmware to see if it helps with the booting time.

Edited by GSalden

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

Question for those who have reached FPS nirvana now.  "Stutters", and frame rate, are two very different issues.  Have you found all stuttering is gone now when scrutinizing carefully?  Or do you still have the occasional or rare stutter?

And to expand on that to what matters most to me--when you land the PMDG 738 or Fenix at the most complex airports are you able to maintain TLOD at >= 200 with zero stuttering or saturation of the main thread or however you care to frame the cause of this common issue associated w/ landing at complex airports/metro areas?

Thanks

Edited by Noel

Noel

System:  9900X3D Noctua NH-D15 G2, MSI Pro 650-P WiFi, G.SKILL  64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000, WD NVMe 2Tb x 1, Sabrent NVMe 2Tb x 1, RTX 4090 FE, Corsair RM1000W PSU, Win11 Home, LG Ultra Curved Gsync Ultimate 3440x1440, Phanteks Enthoo Pro Case, TCA Boeing Edition Yoke & TQ, Cessna Trim Wheel, RTSS Framerate Limiter w/ Front Edge Sync.

Aircraft used in MSFS 2024:  Fenix A320,  Aerosoft CRJ, FBW, WT 787X, I-Fly 737 MAX 8, Citation Longitude.

 

4 hours ago, GSalden said:

Update : the new card pushed the USB3 connector so it came loose from the mobo.

I am going to update to the latest firmware to see if it helps with the booting time.

Sounds like some initial hurdles, hope you'll overcome them quickly. 

8 minutes ago, Noel said:

Question for those who have reached FPS nirvana now.  "Stutters", and frame rate, are two very different issues.  How you found all stuttering is gone now when scrutinizing carefully?  Or do you still have the occasional or rare stutter?

Good point. Overall very smooth and fluid, even in the 30-40 fps range. There are some intermittent stutters / brief pauses though. I'm not sure - but I would guess that they could be related to scenery loading? In the tests I did yesterday (screenshot forum) I did fly very fast (140-240kts) at low altitude over some very heavy scenery.

7950X3D | RTX 4090 | 64GB DDR5

2 minutes ago, Cpt_Piett said:

Good point. Overall very smooth and fluid, even in the 30-40 fps range. There are some intermittent stutters / brief pauses though. I'm not sure - but I would guess that they could be related to scenery loading? In the tests I did yesterday (screenshot forum) I did fly very fast (140-240kts) at low altitude over some very heavy scenery.

As I have maintained freedom from stutters is always my first priority.  I have spent so much time in the past 2 weeks trying to get back to this and believe I finally have!   Sources of stuttering very likely vary so this can be very hard to nail down.  Can you also speak to my other question:  landing demanding airplanes at demanding airports?  My sense is "frame generation" isn't going to change this issue, so I am guessing it's mostly about CPU and GPU and what TLOD you can now manage at these types of scenarios.  I only fly airliners now and often they are at complex airports.  I have always found arrival airports to be the most challenging.

Noel

System:  9900X3D Noctua NH-D15 G2, MSI Pro 650-P WiFi, G.SKILL  64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000, WD NVMe 2Tb x 1, Sabrent NVMe 2Tb x 1, RTX 4090 FE, Corsair RM1000W PSU, Win11 Home, LG Ultra Curved Gsync Ultimate 3440x1440, Phanteks Enthoo Pro Case, TCA Boeing Edition Yoke & TQ, Cessna Trim Wheel, RTSS Framerate Limiter w/ Front Edge Sync.

Aircraft used in MSFS 2024:  Fenix A320,  Aerosoft CRJ, FBW, WT 787X, I-Fly 737 MAX 8, Citation Longitude.

 

So, first results with the 13700K and 4090 that replaced my 12700 and 3090 with my usual test-scenario (SU10, DX12@4K@mostly Ultra, KJFK, 31L, 12:00, Overcast, PSTX+RT Traffic, Fenix A320):

12700 + 3090

5FMEkj6.jpg

13700K + 4090

2MFvEnm.jpg

So, without DLSS3 and using SU10, the gains are around 25%, even though I did have more live traffic on my second test.

Other games and benchmarks that I've tested tell a different story (50% and sometimes over 100% increase on performance), so I am quite happy with this upgrade.

Edited by GCBraun

PC1: AMD Ryzen 9800X3D | Zotac RTX 5090 SOLID | Asus TUF X670E-Plus | G.SKILL 64GB DDR5 PC 6000 CL30 | 4TB NVMe  | Noctua NH-D15 | Asus TUF 1000W Gold | be quiet! Pure Base 500DX | Noctua NH-D15S | LG OLED CX 48" + 2x  Acer Nitro XV240YP 24" + 2x 15.6" Touch-screen Panels

PC2: AMD Ryzen 7500F | Asrock 7900 GRE Challenger OC | Gigabyte B650I AX | Corsair 32GB DDR5 6000 CL36 | 1TB NVMe  | CM Hyper 212 | Corsair 750W Gold | Lian Li TU150 ITX | SAMSUNG Odyssey G9 49"

Winctrl Ursa Minor Sidestick + Ursa Minor 32 Throttle & PAC - Thrustmaster Boeing TCA Yoke - Thrustmaster HOTAS Warthog - Honeycomb Bravo Throttle - MFG Crosswind Rudder Pedals - TrackIR - Stream Deck XL + Stream Deck Plus - Winctrl MCDU + 2 MFD's - Meta Quest 3 (VR)
 
1 hour ago, Noel said:

And to expand on that to what matters most to me--when you land the PMDG 738 or Fenix at the most complex airports are you able to maintain TLOD at >= 200 with zero stuttering or saturation of the main thread or however you care to frame the cause of this common issue associated w/ landing at complex airports/metro areas?

I haven't done enough flights in complex airliners since getting the 4090, need to test more before giving a definite answer. I think Gerard is an avid 737/320 simmer though, so it will be interesting to hear his opinion on the matter. 

53 minutes ago, Noel said:

I have always found arrival airports to be the most challenging.

Same. Because of your previous posts on this I always turn down TLOD before arriving at complex airports. I would most likely still have to do this at the most demanding ones - KLAX, KJFK, EGLL. 

7950X3D | RTX 4090 | 64GB DDR5

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