Question Playing 60fps capped game at native 165hz refresh rate with G-Sync, confused why it's noticeably more choppy than playing at 60hz ?

[SafetyPotato]

So I recently bought the LG 27GP850-B 27 and this is my first high refresh rate monitor, so bear with me here as I’m a bit confused with how variable refresh rate works. When I was playing a game that was locked at 60fps, the refresh rate on my monitor was jumping around between ~70-165hz but never landing at 60hz. The result was my game feeling very choppy. I went to the Nvidia control panel and locked the monitor's refresh rate to 60hz and noticed an immediate difference in game.

Am I not using adaptive sync correctly? The only options on my monitor seem to be “Basic” and “Extended” and the game didn’t feel good with either. I'm also using "Normal" response time, which is recommended to minimize overshoot when playing below 100hz. I can understand the refresh rate of my monitor not locking onto the framerate of the game when my framerate is always changing, but my game was locked at 60fps, so I feel like it should be consistent. Am I supposed to need to set my refresh rate to 60hz when playing 60fps games to get best results?

EDIT: Okay, so I think I fixed it by setting the adaptive sync mode to "extended" rather than "basic". When I was running on basic mode with 60fps capped games the refresh rate of my monitor wasn't even close to 60hz. When I put on extended it's now consistently at 60hz. Apparently extended mode mode is for ranges of 40hz-60hz and basic is for everything else. It is kind of annoying to have to change monitor settings every time I want to play a capped game, but oh well.

 

[hadiahmed29]

You will feel the choppyness if you have V-sync and G-sync on at the same time.

Have you tried to disable V-sync in-game on in Nvidia Control panel while using G-Sync ?
And yes you would need to match the Frame rate and Refresh rate of your monitor in order to have a smooth gameplay.
I get you that you bought a new monitor with 165hz and you want to use all of it but trust me put your monitor on 144hz and in game 120hz you won't feel much difference i recently bough msi optix mag274qrf and had the same issue.

 

[SafetyPotato]

You will feel the choppyness if you have V-sync and G-sync on at the same time.

Have you tried to disable V-sync in-game on in Nvidia Control panel while using G-Sync ?
And yes you would need to match the Frame rate and Refresh rate of your monitor in order to have a smooth gameplay.
I get you that you bought a new monitor with 165hz and you want to use all of it but trust me put your monitor on 144hz and in game 120hz you won't feel much difference i recently bough msi optix mag274qrf and had the same issue.

Yeah I tried disabling V-Sync and it didn't do anything for me. Also, according to blurbusters apparently G-sync is designed to work in tandem to V-Sync, at least the one enabled in Nvidia Control panel. Can't say for in-game though since the game I'm playing (Terraria) doesn't have its own V-Sync option. Also how would lowering the refresh rate of my monitor help me like that? The only issues I'm having are on 60fps capped games with any refresh rate that isn't 60hz. I've tried all the other refresh rate options with G-Sync and running at 60hz with a 60fps capped game is significantly smoother than any of the other refresh rates. Even 60hz vs 100hz is night and day.

What I don't understand is why G-Sync is (assumingly) have troubles matching with the 60fps cap considering the framerate is consistent and unchanging. Every time I search whether I should change my monitor to 60hz for 60fps games I see numerous people say to just let G-Sync do it's thing and how changing your monitors refresh rate to 60hz should yield worse response times in 60fps games, but from what I'm seeing I can't see how this is the case unless I'm doing something wrong.

 

[boju]

What game is it? Have you tried checking disable fullscreen optimisation under the game's exe compatibility tab so it's purely in fullscreen instead of semi borderless? Sometimes Gsync and or game has issues with it. Assuming you're running Win10.

Regarding Vsync, yes it is used in tandem and only activates if frame rates exceed Gsync range. Otherwise, Vsync is disabled behind the scenes even if it's on, it has no effect when Gsync is in operation.

 

[SafetyPotato]

Okay, so I think I fixed it by setting the adaptive sync mode to "extended" rather than "basic". When I was running on basic mode with 60fps capped games the refresh rate of my monitor wasn't even close to 60hz. When I put on extended it's now consistently at 60hz. Apparently extended mode mode is for ranges of 40hz-60hz and basic is for everything else. It is kind of annoying to have to change monitor settings every time I want to play a capped game, but oh well. Thanks for everyone that replied.