G-SYNC 101: Closing FAQ

“Let me get this straight…”

“Closing FAQ” published Jan 25, 2019

G-SYNC 101 has been around long enough now to have accumulated some frequently asked follow-up questions from readers, both in the comments sections here and in the Blur Busters Forums.

To avoid further confusion or repeat questions, I have compiled a selection of them below for easier access. This section may change and grow as time goes by, so check back here regularly for updates before asking your question.

2845 Comments For “G-SYNC 101”

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Hi thanks for the guide. Slightly specific question but 1) When using G-Sync+NVCP V-Sync, no reflex, no LLM and no FPS cap in any program my FPS is still capped at my monitors refresh rate (280hz, stable 280fps). Is this thanks to V-Sync by itself? And would this be causing higher input latency as opposed to using reflex etc?

2) Tangentially, in CS2 I see much higher frametime variance when using G-Sync+NVCP V-Sync+Reflex/or LLM Ultra and the FPS is capped by either of those options (~260fps, stable). Yet if I disable Reflex/ LLM Ultra, with no FPS cap in game – my fps will still remain capped (~280fps, stable) yet the frametime variance will disappear. If I then cap the FPS in game, or in any program (with Reflex/LLM still off) at 280fps myself, the variance returns. Do you know what might be going on here?

Sorry for the hyper-specific question, I’m mostly concerned if there is potentially added delay but again thank you for the guide.


Hello, im still confused on what is the “Most” Optimal setting for G-Sync
is it the following?

NVCP Settings:
G-Sync Enabled (Fullscreen Only)
Preferred refresh rate to Highest Available
Ultra Low Latency Enabled or (If Reflex is available use it On+Boost)
Frame Limiter enabled ( 138 FPS CAP)
V-Sync On

Ingame Settings:
Everything related to V-Sync is disabled
No FPS Cap

Few more questions
1: Would using RTSS be better than Nvidia’s Frame Limiter
2: Would Low Latency Mode be better on “On” instead of Ultra w/ the Frame Limiter Enabled
3: Why is V-Sync enabled through NVCP instead of the game?


what is the latency difference between “gsync on + nvcp vsync on + ingame limiter” and “gsync on + nvcp vsync on + reflex on or ultra”


Hey bro, thanks everything is smooth as intended . But quick question. What about Triple buffering? it says it helps when Vsync is also enabled. should i have this disabled or enabled ?


Hello friend
Did I follow the guidelines correctly?
Can you give me setting suggestions?
CPU: 7800X3D
GPU: RTX4070

LCD: PG259QNR (360Hz)
G-Sync: Enable
Low Latency Mode:On

Reflex: OFF
FPS limiter: 356