• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

G-Sync Issue ? ! ?

E

EnvymeRT

Limp Gawd
2FA
Joined
Mar 18, 2013
Messages
395
I have tried a few things not sure if it is the monitor / video card or an issue with the G-sync module. I noticed while playing BF1, Overwatch and WoW my frame rates seemed much lower than they should be. Last night I finally decided to test a few things and would like to know if anyone else had this issue.

For one with G-sync enabled and V-sync enabled at 100mhz refresh rate frames were not buttery smooth when turning. Some games it was more noticeable than others. I tried different refresh rates and monitor settings with my X34 predator. WoW I noticed a huge issue with frames. My 1080 GTX was pushing 36-42 FPS with Gsync and Gsync enabled. When I turn off Vsync my FPS goes to 85-100.

I have read it is best to use G and V sync On in the Nvidia Control Panel and turn it off in game. But what is going on that the FPS in games would be cut roughly in half? It seems like a software issue more than hardware issue to me.

Also with V-sync enabled I notice very very slight horizontal line banning in games with it off the lines go away. Is it the monitor taking a dump?
 
You only need to apply V-Sync if your frames go over your monitors refresh rate. If it is 100hz and your frame rates are less than that, then there is no need to apply it.
 
Maddness said:
You only need to apply V-Sync if your frames go over your monitors refresh rate. If it is 100hz and your frame rates are less than that, then there is no need to apply it.
Click to expand...

Yeah it will occasionally go over 100fps at the 3440x1440 but why would I notice a sharp (50%) Frame loss with V-sync enabled ?
 
EnvymeRT said:
Yeah it will occasionally go over 100fps at the 3440x1440 but why would I notice a sharp (50%) Frame loss with V-sync enabled ?
Click to expand...

That does sound like gsync is not on. with regular vsync on when you can't hit your hz in fps, you drop to the next even divisoer of hz. aka 50% (1/2) then 33% (1/3) hten 25% 20% etc etc
Unless triple buffered of-cause.
 
SvenBent said:
That does sound like gsync is not on. with regular vsync on when you can't hit your hz in fps, you drop to the next even divisoer of hz. aka 50% (1/2) then 33% (1/3) hten 25% 20% etc etc
Unless triple buffered of-cause.
Click to expand...

Ah ok this makes some sense then, as it seems it is half of what FPS I should be getting.
 
Well if it is a vsync cause framdrops due to load of gsync it should be half of refresh rate of monitors so with a 100hz monitor any fps between 50. and 99.9 will drop til 50. anything between 33.3 and 49.9 will drops to 33.3 this happesn because the 2 framebuffers are occupied and have to wait until next refrehs cycle before they can swap and start rendering. so always 1/x amout of refresh rate is possible.

gsync works by lowering this refresh rate so lets say you are hitting 80fps. you screeen is doing 80hz so you don't have to drop to 100/2= 50 fps but can hit 80/1= 80fps

Yrippebuffering/fast sync avoid this issues by providing an extra buffer that can be used when the 2 first one are bussy so the GPU doens have to sit and wait.
its not as good as gsync though.
 
AH ok looks like Vsync will be left off and I will run Gsync until I get a Pascal Titan or 1080 Ti
 
You must log in or register to reply here.
Back
Top