Hi,
I've been really trying to achieve smooth, stutter-free gaming for a couple days now, looking for various methods and fixes. I'm using a 180hz monitor, with G-SYNC + V-SYNC on in NVCP.
Today I noticed that if I cap my fps to 90 (using either in-game fps cap or RTSS), I achieve perfect stutter-free motion. If I use a cap of 100 (or anything above) the stutters return. This also applies to uncapped fps. I understand 90 is 1/2 of 180hz, but as I am using GSYNC + VSYNC, surely a cap of 100fps should feel smoother than 90fps?
The game I'm testing with is Squad. I only get around 100-140 fps so capping at 180 isn't an option unfortunately.
My understanding of stutter isn't great, but I'd love to have the feel of my 90fps cap across all framerates, so I can make proper use of VRR.
Would love some advice!
Thank you.
VRR Stutter Outside Refresh Rate Division
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Re: VRR Stutter Outside Refresh Rate Division
Scenario 1:Ratthew wrote: ↑03 Feb 2025, 14:59Hi, today I noticed that if I cap my fps to 90 (using either in-game fps cap or RTSS), I achieve perfect stutter-free motion. If I use a cap of 100 (or anything above) the stutters return. This also applies to uncapped fps. I understand 90 is 1/2 of 180hz, but as I am using GSYNC + VSYNC, surely a cap of 100fps should feel smoother than 90fps?
Are you using windowed or full screen exclusive? That can affect whether VRR is properly fully activated. If VRR was not fully activated properly (both monitor side, driver side, and game side). Try testing VSYNC OFF in the game's own settings too (it only affects framepacing, no tearing when using the driver override), while using driver based GSYNC+VSYNC ON.
Scenario 2:
Test a cap of 70 or 80. Or test a cap of 90 during 144Hz VRR. If that's smooth, then a cap of 100 is probably because your game is starting to struggle past 90 -- and the "90 half of 180" simply becomes a mere coincidence. That would be because 100 becomes the framerate that the game begins to struggle at.
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Re: VRR Stutter Outside Refresh Rate Division
Fullscreen exclusive.
I'm near certain VRR is working as I don't see any tearing, just stutter.
Also worth noting I've just found a 120fps cap also feels equally smooth as 90!
I'm near certain VRR is working as I don't see any tearing, just stutter.
Also worth noting I've just found a 120fps cap also feels equally smooth as 90!
Cheese! 

Re: VRR Stutter Outside Refresh Rate Division
I've just switched over to 144Hz VRR; a 90fps cap now looks stuttery, while a 72fps cap feels smooth.
Cheese! 

Re: VRR Stutter Outside Refresh Rate Division
Well, for whatever reason, VRR is clearly not working correctly.
Steam • GitHub • Stack Overflow
The views and opinions expressed in my posts are my own and do not necessarily reflect the official policy or position of Blur Busters.
The views and opinions expressed in my posts are my own and do not necessarily reflect the official policy or position of Blur Busters.
Re: VRR Stutter Outside Refresh Rate Division
Okay, I'll do some experimenting next time I'm at my PC.
I believe everything's set up properly though:
Freesync On (Monitor)
GSync On in NVCP
VSync On in NVCP
VSync Off in Game
Any recommendations on what I could try? I can only think of trying VSync Off in NVCP, or possibly a full Windows reset if some app or something is causing this behaviour.
I believe everything's set up properly though:
Freesync On (Monitor)
GSync On in NVCP
VSync On in NVCP
VSync Off in Game
Any recommendations on what I could try? I can only think of trying VSync Off in NVCP, or possibly a full Windows reset if some app or something is causing this behaviour.
Cheese! 

Re: VRR Stutter Outside Refresh Rate Division
Try installing SpecialK and launch a game in it (make sure it's not an online game as those have anti-cheat systems that can get you banned if you use injectors like SpecialK.)
In SKIF, in the settings tab, enable performance logging for your Windows user account and reboot. Then launch a DX11 game and configure it to use borderless windowed mode instead of exclusive fullscreen and exit. Then launch the game through SKIF and in-game press ctrl+shift+backspace to bring up SK's control panel and check the g-sync status as well as the current presentation model (the field where in this screenshot it says "hardware composed independent flip"):
Also check if this makes g-sync work correctly.
Steam • GitHub • Stack Overflow
The views and opinions expressed in my posts are my own and do not necessarily reflect the official policy or position of Blur Busters.
The views and opinions expressed in my posts are my own and do not necessarily reflect the official policy or position of Blur Busters.
Re: VRR Stutter Outside Refresh Rate Division
Solved!
For some reason in NVCP, 'Enable settings for the selected display model' wasn't checked. Turned it on and that fixed the issue. Sorry for missing this previously but thank you for helping!
For some reason in NVCP, 'Enable settings for the selected display model' wasn't checked. Turned it on and that fixed the issue. Sorry for missing this previously but thank you for helping!
Cheese! 
