G-SYNC Settings

Discussion in 'Displays' started by PiERiT, Aug 11, 2018 at 2:10 PM.

  1. PiERiT

    PiERiT 2[H]4U

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    So I've had G-SYNC since day 1 where they released the add-on board for the VG248QE and was using a 680. It sounded like it would solve just about every complaint I had with games stuttering or tearing and from what I can recall, it did. Fast forward a few years and I have an Acer X34 and use a 1080 Ti and just about every recent AAA game I play stutters. What happened?

    I know the best way to make sure G-SYNC works has changed quite a bit and most recently I think it's been to make sure G-SYNC is enabled in the NVCP (it's on by default), disable V-SYNC in-game, then set a framerate cap a couple FPS below your screen's refresh rate, 88 in my case as I've overclocked the X34 to 90Hz.

    Is that still accurate? Because that's what I'm doing and a lot of games are a mess regardless. I use an FPS counter and games are just about always at that 88, maybe dipping to 60-70 at times, but isn't G-SYNC supposed to make those dips unnoticeable? I'm starting to wonder if it's down to poor coding and optimization in the games and no amount of hardware I throw at it will do anything.

    Edit: Just found this and it's similar to what I have above except doing a framerate limit of -3 instead of -2 and one other key difference: apparently you're supposed to enable V-SYNC in the NVCP as well, which is not on by default, otherwise G-SYNC loses the ability to compensate for sudden framerate drops. This explains a lot and is what you wanted at launch but I swear they changed it 1.5-2 years ago to where you DIDN'T want V-SYNC on in the NVCP... or I dreamt the whole thing and it never changed at all.

    https://www.blurbusters.com/gsync/gsync101-input-lag-tests-and-settings/14/
     
    Last edited: Aug 11, 2018 at 3:54 PM
  2. jpmeaney

    jpmeaney n00bie

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    I also have the X34. I enable G-SYNC in NVCP for Fullscreen and Windowed, then set Vertical Sync to Fast. I run @ 100hz and I've never touched the framerate cap. I run 1080ti. Everything I play is buttery.
     
  3. 4RunnerTE

    4RunnerTE Limp Gawd

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    But still disable vsync in game?
     
  4. PiERiT

    PiERiT 2[H]4U

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    Another page on that site says you don't want both G-SYNC and Fast Sync enabled because they don't work simultaneously. Fast Sync will run when your FPS exceeds your refresh rate and G-SYNC will run when it drops below. But if everything's smooth for you, stick with it; messing around with these settings is what got me into this predicament to begin with.

    That's what the link suggests yes. I tried all of it a minute ago for CoD WWII and it worked great. I don't have anything else installed right now to test. I had similar problems with BF1 but I just lived with it and beat the campaign war story things and uninstalled it.
     
    Last edited: Aug 11, 2018 at 3:39 PM
  5. HiCZoK

    HiCZoK Gawd

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    Tested and confirmed multiple times on blurbusters (and by me)
    -Force enable vsync in nvidia control panel
    -Install RTSS (riva tuner statistics server) and force global fps cap 3frames below Your max (so 144 or 97 or 237 depending on monitor)

    This way:
    -Always no tearing (normally gsync with vsync off CAN tear
    -never exceeds fps ceiling which have higher lag if old school vsync enables.

    keep in mind that vsync is not a real vsync with gsync enabled. it's just a function to eliminate tearing and does not introduce additional lag unless You exceed max hz. This is where RTSS comes in
     
  6. sharknice

    sharknice [H]ard|Gawd

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    At some point they made it so you can choose between vsync on or off once it hits the cap. It used to be only vsync on. That's the only thing that's really changed. 2 fps is probably too close to the limit for the games you're playing. The cap you set depends on the game. 4 fps under is pretty safe for most games.
     
  7. 4RunnerTE

    4RunnerTE Limp Gawd

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    So just regular vsync on, and not fast mode?

    Do you have to use RTSS or can you use an in-game FPS limiter (if available)?
     
  8. RamboZombie

    RamboZombie n00bie

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    I kinda wish that the premium-VRR solution was more plug and play.. it kinda defeats the purpose when you have to download thirdparty software just to get that G-sync running as intended - this should be a real easy fix for nVidia.
     
  9. Morkai

    Morkai Limp Gawd

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    Note that the nvidia drivers have had a bug that caused stutter lately, there's a hotfix out but you need to download it manually: http://international.download.nvidi...top-notebook-win10-64bit-international.hf.exe

    This is GeForce Hot Fix driver version 398.86 that addresses the following:

    • Windowed G-Sync mode may stutter after upgrading to Windows 10 April 2018 Update.

    As for g-sync settings in general, enable g-sync for fullscreen and windowed, set ingame framerate cap a few fps lower than refreshrate, if no ingame limiter, use rtss.
    The recommendation from the blurbusters test was to enable v-sync in nvidia panel, and due to the framelimiter it should never kick in, however, it is claimed that fps spikes occur past the framelimit, and vsync on deals with these.
    (The reason for ingame-limiter > rtss> nvidias driver limiter is lower input lag, but some ingame limiters can cause issues so it's not always true).

    Some games are just so badly optimized that the frametimes vary so wildly that stutter can't be avoided, gsync can only compensate for a small variation in frametimes, not work magic.
     
    Last edited: Aug 12, 2018 at 4:50 AM
  10. HiCZoK

    HiCZoK Gawd

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    Only NORMAL vsync on.
    RTSS is much better than any ingame limiters too, so use it. It's a very light weight program. You set global cap and make it start with windows and forget
     
  11. PiERiT

    PiERiT 2[H]4U

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    Spoke too soon on CoD WWII being 100% fixed; it's a lot better after swapping to the settings discussed in this thread but there are still some instances where my framerate drops from my cap of 87 to 65-75 and then the game stutters.

    That's the game engine/coding I assume? Not much to be done?
     
  12. HiCZoK

    HiCZoK Gawd

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    It's definitely game loading stuff
     
  13. Armenius

    Armenius [H]ardForum Junkie

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    I take it with an ultrawide that you run games in borderless window to get the proper aspect ratio? Make sure you get the latest hotfix driver because it fixes G-Sync for windowed applications, which has been broken since Windows 10 1703.
    https://nvidia.custhelp.com/app/answers/detail/a_id/4693
     
  14. xp3nd4bl3

    xp3nd4bl3 2[H]4U

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    I have an X34 at 95Hz and I've found FPS caps are hit and miss. Fast sync to me feels worse. I've found that playing with the NV control panel VSYNC enabled gives the smoothest experience for me. That said I really want the forthcoming 200Hz ultrawide so I can be within GSYNC range 100% of the time and never hit the refresh limit.
     
  15. PiERiT

    PiERiT 2[H]4U

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    Usually do fullscreen, I haven't encountered many games that don't support 21:9. Not recently at least.

    I did get that driver regardless and enabled GSYNC for windowed and full and no change. Things are a lot better since enabling vsync though, just not 100% stutter free. Maybe 95% up from 75% if I had to assign values.