Frame Generation RTX4090

General Discussion & Community Support Tech Talk
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1

Hello friends,
Can anybody tell me if frame generation reduces visual quality? I know that Nvidia Super Resolution does but I intend to run the sim with TAA+FG. Thanks

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Any help on this?

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On my 4080 with FG on I do not notice any problems (similar quality).

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Yes, it does affect visual quality (depend on your peronsal expectation).

I have to turn off FG and back to native TAA, because it cause the artefacts when panning views, I am the one who very often switch between cockpit and external views (during flights), so this thing really bothers me.

And you may use FG only with DX12 (that cause texture glitch at some sceneries, especially with winter snow).

So if you can live with it, use FG and benefit more fps, otherwise back to native TAA for finest graphics.

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Thanks!!! Il asked because I just installed a 4090. Tried with TAA+FG and I do not see any artifacts when panning views. Though I noticed a slight loss in texture quality. Nothing too bad and sometimes hard to notice but I think it’s there.
Must say that the performance benefits are unprecedented.

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I own a 4090 and I can run maxumum settings without using frame generation and get incredibly smooth frames so I guess this issue isn’t so important on such a powerful card, just use DLSS 2 instead.

But yes you do lose visual quality using frame generation but that’s not the same as losing quality using say DLAA for example, the visual quality loss is around specific geometry where you have a stable surface next to something which is changing constantly like the ground next to a wing, or the prop over the horizon.

The higher resolution the less noticable this artifacting becomes. The other concern with frame generation is latency which can affect input response, Nvidia have a technology to combat this called Reflex which gives lower latency but isn’t really an issue for flight simulators, competitive FPS shooters then maybe.

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7

There is no loss in texture quality. The only artifacts introduced are the ones when panning views, as the AI interpolated frames aren’t perfect for fast-moving scenes.

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8

Thanks for the comments. Honestly I don’t notice artifacts at the moment. I’m running a 2k gsync monitor. Vsync on in Nvidia panel and off in sim. Monitor running at 60hz

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This is correct, it injects frames in, not reduce the current native frame’s visual graphics.

I can also agree that panning you get what looks like tearing across the screen in certain areas, It can be jarring, but I can see past it and rather have the extra “smoothness”, even if it is fake.

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Thanks NBK. Did some 24hours testing and on my system the only downside I can notice is a minimal ( almost not noticeable) shimmer on the LCD displays/FMC when panning around. Maybe my G-Sync monitor+Vsync (Nvidia Panel) mitigate screen tearing. Like you said nothing I cannot live with for the benefit I get

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This happens when your framerate is not synced to the monitor. Got the same problem from the beginning, until I realized my freesync monitor is also compatible with g-sync. Now it runs perfect on my RTX4080 / ultra settings.

Important steps:

  1. Activate G-Sync or Freesync (If you can choose: standard speed works for most) on your screen

  2. Activate G-Sync in Nvidia Control Panel (G-Sync setup) and tick the boxes 1. (Full Screen) and 3.

  3. Activate Monitor technology - G-Sync compatibility (3D-Settings)

  4. Activate V-Sync (3D-Settings)

  5. Activate Low Latency Mode - Ultra (3D-Settings)
    (This also works as a Frame Rate Limiter, since it caps FPS slightly unter max. screen refresh rate to avoid stutters caused by inconsistent frame timings)

  6. Activate Frame Generation and turn off V-Sync in MSFS

  7. Enjoy

You can test everything with the Nvidia Pendulum Demo, available here: Download NVIDIA Tech Demos

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