G-SYNC 101: Optimal G-SYNC Settings & Conclusion

Optimal G-SYNC Settings*

*Settings tested with a single G-SYNC display (w/hardware module) on a single desktop GPU system; specific DSR, SLI, and multi-monitor behaviors, as well as G-SYNC laptop display and “G-SYNC Compatible” display implementation, may vary.

Nvidia Control Panel Settings:

  • Set up G-SYNC > Enable G-SYNC, G-SYNC Compatible > Enable for full screen mode.
  • Manage 3D settings > Vertical sync > On (Why?).

In-game Settings:

  • Use “Fullscreen” or “Exclusive Fullscreen” mode (some games do not offer this option, or label borderless windowed as fullscreen).
  • Disable all available “Vertical Sync,” “V-SYNC,” “Double Buffer,” and “Triple Buffer” options.
  • If an in-game or config file FPS limiter is available, and framerate exceeds refresh rate:
    Set (a minimum of) 3 FPS limit below display’s maximum refresh rate (57 FPS @60Hz, 97 FPS @100Hz, 117 FPS @120Hz, 141 FPS @144Hz, etc).

RTSS Settings:

  • If an in-game or config file FPS limiter is not available and framerate exceeds refresh rate:
    Set (a minimum of) 3 FPS limit below display’s maximum refresh rate (see G-SYNC 101: External FPS Limiters HOWTO).


Nvidia “Max Frame Rate” Settings*:

*Introduced in Nvidia driver version 441.87

  • If an in-game or config file FPS limiter is not available and framerate exceeds refresh rate:
    Set “Max Frame Rate” to “On,” and adjust slider to (a minimum of) 3 FPS limit below display’s maximum refresh rate.

Low Latency Mode* Settings:

*This setting is not currently supported in DX12 or Vulkan.

  • If an in-game or config file FPS limiter is not available, RTSS is prohibited from running, a manual framerate limit is not required, and framerate exceeds refresh rate:
    Set “Low Latency Mode” to “Ultra” in the Nvidia Control Panel. When combined with G-SYNC + V-SYNC, this setting will automatically limit the framerate (in supported games) to ~59 FPS @60Hz, ~97 FPS @100Hz, ~116 FPS @120Hz, ~138 FPS @144Hz, ~224 FPS @240Hz, etc.
  • If an in-game or config file FPS limiter, and/or RTSS FPS limiter is available, or Nvidia’s “Max Frame Rate” limiter is in use, and framerate does not always reach or exceed refresh rate:
    Set “Low Latency Mode” to “On.” Unlike “Ultra,” this will not automatically limit the framerate, but like “Ultra,” “On” (in supported games that do not already have an internal pre-rendered frames queue of “1”) will reduce the pre-rendered frames queue in GPU-bound situations where the framerate falls below the set (in-game, RTSS, or Nvidia “Max Frame Rate”) FPS limit.

Windows “Power Options” Settings:

Windows-managed core parking can put CPU cores to sleep too often, which may increase frametime variances and spikes. For a quick fix, use the “High performance” power plan, which disables OS-managed core parking and CPU frequency scaling. If a “Balanced” power plan is needed for a system implementing adaptive core frequency and voltage settings, then a free program called ParkControl by Bitsum can be used to disable core parking, while leaving all other power saving and scaling settings intact.

Blur Buster's G-SYNC 101: Input Lag & Optimal Settings

Mouse Settings:

If available, set the mouse’s polling rate to 1000Hz, which is the setting recommended by Nvidia for high refresh rate G-SYNC, and will decrease the mouse-induced input lag and microstutter experienced with the lower 500Hz and 125Hz settings at higher refresh rates.


Refer to The Blur Busters Mouse Guide for complete information.

Nvidia Control Panel V-SYNC vs. In-game V-SYNC

While NVCP V-SYNC has no input lag reduction over in-game V-SYNC, and when used with G-SYNC + FPS limit, it will never engage, some in-game V-SYNC solutions may introduce their own frame buffer or frame pacing behaviors, enable triple buffer V-SYNC automatically (not optimal for the native double buffer of G-SYNC), or simply not function at all, and, thus, NVCP V-SYNC is the safest bet.

There are rare occasions, however, where V-SYNC will only function with the in-game option enabled, so if tearing or other anomalous behavior is observed with NVCP V-SYNC (or visa-versa), each solution should be tried until said behavior is resolved.

Maximum Pre-rendered Frames*: Depends

*As of Nvidia driver version 436.02, “Maximum pre-rendered frames” is now labeled “Low Latency Mode,” with “On” being equivalent to MPRF at “1.”

A somewhat contentious setting with very elusive consistent documentable effects, Nvidia Control Panel’s “Maximum pre-rendered frames” dictates how many frames the CPU can prepare before they are sent to the GPU. At best, setting it to the lowest available value of “1” can reduce input lag by 1 frame (and only in certain scenarios), at worst, depending on the power and configuration of the system, the CPU may not be able to keep up, and more frametime spikes will occur.

The effects of this setting are entirely dependent on the given system and game, and many games already have an equivalent internal value of “1” at default. As such, any input latency tests I could have attempted would have only applied to my system, and only to the test game, which is why I ultimately decided to forgo them. All that I can recommend is to try a value of “1” per game, and if the performance doesn’t appear to be impacted and frametime spikes do not increase in frequency, then either, one, the game already has an internal value of “1,” or, two, the setting has done its job and input lag has decreased; user experimentation is required.


Much like strobing methods such as LightBoost & ULMB permit “1000Hz-like” motion clarity at attainable framerates in the here and now, G-SYNC provides input response that rivals high framerate V-SYNC OFF, with no tearing, and at any framerate within its range.

As for its shortcomings, G-SYNC is only as effective as the system it runs on. If the road is the system, G-SYNC is the suspension; the bumpier the road, the less it can compensate. But if set up properly, and run on a capable system, G-SYNC is the best, most flexible syncing solution available on Nvidia hardware, with no peer (V-SYNC OFF among them) in the sheer consistency of its frame delivery.

Feel free to leave a comment below, resume the discussion in the Blur Busters Forums, or continue to the Closing FAQ for further clarifications.

2686 Comments For “G-SYNC 101”

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Hello. There are a few things I didn’t understand from the article and I would like to ask about them. I have a PG32UQX monitor with Gsync ultimate. I didn’t understand how it is with the Vsync setting. Should I rather use it on this monitor in game or in nvidia panel settings. So which is better for Gsync. And if I set vsync in the nvidia panel (which means I have my own 3d settings) will it change the look of the game ? Like texture quality and stuff. And the second thing. How about the windows power plan. Is it ok to use balance or is high/ultimate perfromance better ? Thanks..


I play valorant and want to know the best possible way to optimize my game for input lag. Please answer by letting me know what to do with the following settings: G sync on vs off, V sync on vs off, Nvidia Reflex on vs off, and fps cap. Thank you 🙂 I have 3080 and 5600x


Hello, I have an ASUS PG279QM monitor. This monitor has an FPS Counter feature with a graph displaying current frame rate. While testing with a Nvidia CP VSYNC ON + NVIDIA CP FPS LIMITER set to 237 FPS in a CS:GO game I’ve noticed that most of the time it is at 237-238 but sometimes it spikes to 240 on that “FPS Counter” graph, so does it mean that GSync is disabled and VSYNC and its latency is enabled in that case? I tried to cap it to 235 fps and still sometimes it shows me 240, I tried to lower it to 230 fps and then I didn’t noticed these spikes to 240 on that graph on my monitor. Right now I’m not sure whether I should stick to 237 FPS or to 230 because I mainly concerned whether Gsync may be disabled in that “spike case”, but I’m not sure maybe it is just a graph that is not very precise? What is your opinion on this? Also, I’ve tried to use an “In game” limiter in CS:GO but it is far less consistent compared to NVidia’s one. I’ve read articles and it is said that the recommendation is to set it to “-3 FPS” but in my case I’m not sure. What’s your thought on this? Thanks. 🙂


Hello i have a question. I have an Samsung QLED TV with a 4k 120Hz panel and it is G-Sync compatible. I will play with fixed 60fps on 4k because my RTX 3080. What settings should i use?
120Hz on 4K, G-Sync and V-Sync i think both should be enabled.
What Framelimit should i set? 117FPS or 57 or can it still be on 60? Im am not sure about that.
Thank you for this great article.


sorry i still don’t understand

why recommends Nvidea
V sync let the 3D setting decide, and not on?

first I use Gsync+Vsync + framelimiter

If Reflex is available in the game, should I turn off LLM in the Control Panel?

For example if I play a game that is very GPU bound and there is no reflex should I set LLM to ultra or on when using gsync + vsync + frame limiter .

Thank you so much.