stuttering with optimal g-sync setting

[AlHouine]

Hi all, I'm having a rather weird problem with the g-sync setup and my game/monitor setup.

I have a 100Hz monitor that is set up like on the website.
That is:
- V-sync enabled in the nvidia panel
- Max frame rate at 97 fps.
- Low Latency mode set to On
I used the setting here: https://blurbusters.com/gsync/gsync101- ... ttings/14/

The problem is that I encounter stuttering in this configuration and especially on League of legend.
When I set the max frame rate to 100 (the refresh rate of my monitor), I don't get any stutter.

My question is: why do I get stuttering at 97 fps with g-sync (so the optimal setting) when I don't get stuttering at 100 fps with g-sync?

Thank you very much

I'm sorry for my bad English, I use a translator

[jorimt]

My question is: why do I get stuttering at 97 fps with g-sync (so the optimal setting) when I don't get stuttering at 100 fps with g-sync?

Try using a 97 FPS RTSS limit instead. Sometimes you may need to experiment with the limiting method you use depending on the game.

Also, G-SYNC does not fix system-side stutter, it only prevents the stutter that standalone V-SYNC causes whenever the framerate is below the refresh rate.

[AlHouine]

Thank you for your answer
I tried to adjust with RTSS and the result is even worse than with the adjustment via the nvidia panel.

So according to you, this is impossible to solve since it is "normal"?

[jorimt]

Thank you for your answer
I tried to adjust with RTSS and the result is even worse than with the adjustment via the nvidia panel.

So according to you, this is impossible to solve since it is "normal"?

I'm saying it's impossible to solve with G-SYNC, which only prevents tearing without adding the stutter or latency standalone V-SYNC adds. G-SYNC does not fix system-side stutter.

As such, I've moved your topic to general.

So the next questions are...

1. Do you get the same or similar stutter with G-SYNC off + VSYNC on or off + 97 FPS limit as well?

and

2. Are there any games you are not experiencing that stutter in when using G-SYNC + NVCP V-SYNC + 97 FPS limit?

If so, it sounds like you may be experiencing game-specific stutter, which every user can experience to one degree or another, regardless of hardware or software configuration.

[AlHouine]

To answer the first question, yes I have the same problem

To answer the second question, on the g-sync pendulum demo, I have no problems when I'm at 97fps with g-sync and nvcp sync. Everything is smooth

Thanks for your answers

[jorimt]

To answer the first question, yes I have the same problem

Right, then it's not G-SYNC causing it.

Again, G-SYNC only prevents one form of stutter on the display-side, which is not your issue.

To answer the second question, on the g-sync pendulum demo, I have no problems when I'm at 97fps with g-sync and nvcp sync. Everything is smooth

Then it's likely game-specific issues plus possible hardware limitations when paired with said games using certain settings causing the frametime performance issues.

What are your PC specs and monitor model?

[AlHouine]

Thanks for the clarification

Configuration:
Cpu: R7 3700x
Motherboard: X570-F
Ram: G.skill Trident z Neo 2x8Gb 3600Mhz
Gpu: EVGA rtx 2070 xc ultra
SSD system: nvme samsung 970 evo 250 Gb
SSD 2: samsung 860 evo 1Tb
SSD 3: wd 500Gb

Monitor: Asus VG35VQ

[jorimt]

Thanks for the clarification

Configuration:
Cpu: R7 3700x
Motherboard: X570-F
Ram: G.skill Trident z Neo 2x8Gb 3600Mhz
Gpu: EVGA rtx 2070 xc ultra
SSD system: nvme samsung 970 evo 250 Gb
SSD 2: samsung 860 evo 1Tb
SSD 3: wd 500Gb

Monitor: Asus VG35VQ

You're the second person recently with this complaint (stutter in CPU-limited games) that is also using a 3700x and a FreeSync monitor model that isn't officially G-SYNC Compatible certified:
viewtopic.php?f=2&t=11425#p90232

Could be system/platform, monitor, and/or game-specific. A solution hasn't been found in the above thread as of yet either.

Again though, it's not G-SYNC operation itself (since it's happening with or without G-SYNC enabled in affected games), and likely not faulty hardware causing it.

Games like League are also known to have inherent stuttering issues, so there's that as well.

[MaCzO]

Hi.

I know this is very old topic but I also suffer on stuttering in CPU bound games - cs2, pubg.

I was using gtx 1080 and i7 9700k - GSYNC + VSYNC + LLM Ultra because this setup in PUBG not achived 240 fps for my monitor

Now i have rtx 5080 and 9800x3d and the problem is the same but rtx 5080 have that option Smooth Motion which overwrites Low Latency Mode and with that Smooth Motion there is no stuttering so now I'm using GSYNC + VSYNC + Smooth Motion + FPS cap 237 in game.

But there is no much information about Smooth Motion and I wonder if it doesn't add some input lag because it add for sure some artifacts which are very noticeable on HUD in games.

I need to see some other games which are not a cpu bound games but I don't know which title are gpu bound.

Last time I checked Warzone and there was no stuttering maybe because the game is very fast or idk but warzone is also CPU bound so I think that cs2 and pubg are not well optimized games

[kyube]

Now i have rtx 5080 and 9800x3d and the problem is the same but rtx 5080 have that option Smooth Motion which overwrites Low Latency Mode and with that Smooth Motion there is no stuttering so now I'm using GSYNC + VSYNC + Smooth Motion + FPS cap 237 in game.

Smooth Motion is NVIDIA's driver-wide frame generation technology, which can be used in DX11 and DX12 titles.
You should avoid using it if you're chasing the lowest latency experience.

As for your CS2 issue, the in-game frame limiter is implemented very poorly in terms of frame pacing.
Instead, consider using a value which is 5-10% of the refresh rate of your display (228fps - 216fps @ 240hz)

The ideal setup to use for a "tearing-free" experience while low latency, assuming one is around 20-30% GPU usage, is G-SYNC and using the in-game frame limiter.

The alternative is, if one is not GPU limited and wants the lowest latency possible, is to run highest refresh rate with FPS capped to multiple of refresh rate (240fps @ 240hz, 480fps @ 240hz,...) to avoid microstuttering from mistiming the outputted frametime and refresh rate.
This will also make the tearline static & thus less noticable
This tool can help you calculate the frame rate limit.
https://boringboredom.github.io/tools/fpscapcalculator

Reflex should be used if you hit +90% GPU usage in smokes or the likes
ULLM should be avoided since Reflex exists in CS2.

External solutions add 1-2 frames of latency, which is noticable to users, so avoid those.

Hope this helps.