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Old 01-01-2014, 09:08 PM   #1
simpz
 
 
 
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vSync on or off?

I currently have ASUS VG278HE which is 144hz monitor, it is currently set at 144hz in the setting. I was wondering if I should turn on the vSync or should you guys recommend me to leave it off?

Graphic card is AMD Radeon HD 7870 so it shouldn't be an issue, is vsync better or? I know it keep the tearing off but is there any more benefit beside the tearing?
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Old 01-01-2014, 09:19 PM   #2
antCB
 
 
 
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Leave it turned off. Vsync adds input lag in Source Engine powered games.
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Old 01-01-2014, 10:57 PM   #3
Euphytose
 
 
 
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Removing the tearing is the one and only benefit of v-sync.

Since your refresh rate is higher than the highest tickrate, you technically could play with it if you wanted to.

But as it adds a great deal of input lag, it's definitely not recommended.
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Old 01-02-2014, 03:50 AM   #4
freakn1ck
 
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o ff..
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Old 01-02-2014, 04:04 AM   #5
higround
 
 
 
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I don't have a 144hz monitor myself so can't comment on that front but vsync is horrible on this game on my 60hz one.

See how it feels for yourself. The input lag is truly awful and very noticeable. It almost feels like you are playing underwater.
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Old 01-02-2014, 05:34 AM   #6
Viper Snake
 
 
 
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Play a couple large maps with it on and off, if you don't notice any difference then just keep it on. I have that exact same monitor.
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Old 01-02-2014, 05:59 AM   #7
w0rshi
 
 
 
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You don't play a CS game with vsync.
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Old 01-02-2014, 08:02 AM   #8
Art-Vandelay
 
 
 
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I have a VG248QE as well and the lag is horrible when you turn Vsync on.

Vsync always adds lag. Just avoid it always.
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Old 01-02-2014, 09:03 AM   #9
waffletastic
 
 
 
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Turn off Windows Aero in your desktop theme settings if it's on. I noticed a big decrease in screen tearing after doing this despite having the same FPS as before.
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Old 01-02-2014, 01:24 PM   #10
Nickz
 
 
 
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Quote:
Originally Posted by simpz View Post
I currently have ASUS VG278HE which is 144hz monitor, it is currently set at 144hz in the setting. I was wondering if I should turn on the vSync or should you guys recommend me to leave it off?

Graphic card is AMD Radeon HD 7870 so it shouldn't be an issue, is vsync better or? I know it keep the tearing off but is there any more benefit beside the tearing?
I have the 248QE set to 120 and have vsync turned on. Now, let me tell you NOT ONE BIT OF INPUT LAG, PERIOD, WITH IT TURNED ON. I've not changed anything in my video drivers for pre-rendered frames or 1000hz mouse or anything (Mamba is set to 500).

60hz = 16ms between each frame. Mouse at default 125 polling rate = 9ms. They add up, but it's still within one frame of lag and your reaction time is about 5 times SLOWER than this even if you're REALLY this quick (100ms is above average). Biggest issue is actually the way the game engine handles vsync. Cap set to 300 tells the game engine to hit that target, and vsync limits FPS on the driver level. It conflicts and causes additional input lag.

Turn on vsync (triple buffering removes the 60-30-60 problem if you cant keep 60fps), set fps_max to whatever your refreshrate is. Tada, no more mouse lag, and no tearing. 120hz+ monitors and vsync lowers the input delay even more.

Last edited by Nickz: 01-02-2014 at 01:27 PM.
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Old 01-02-2014, 01:34 PM   #11
Art-Vandelay
 
 
 
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Quote:
Originally Posted by Nickz View Post
I have the 248QE set to 120 and have vsync turned on. Now, let me tell you NOT ONE BIT OF INPUT LAG, PERIOD, WITH IT TURNED ON. I've not changed anything in my video drivers for pre-rendered frames or 1000hz mouse or anything (Mamba is set to 500).

60hz = 16ms between each frame. Mouse at default 125 polling rate = 9ms. They add up, but it's still within one frame of lag and your reaction time is about 5 times SLOWER than this even if you're REALLY this quick (100ms is above average). Biggest issue is actually the way the game engine handles vsync. Cap set to 300 tells the game engine to hit that target, and vsync limits FPS on the driver level. It conflicts and causes additional input lag.

Turn on vsync (triple buffering removes the 60-30-60 problem if you cant keep 60fps), set fps_max to whatever your refreshrate is. Tada, no more mouse lag, and no tearing. 120hz+ monitors and vsync lowers the input delay even more.
If you're not noticing the delay from Vsync, you're probably just not that sensitive to input lag. The lag I've experienced on my monitor at both 120hz and 144hz made the game unplayable for me.
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Old 01-02-2014, 01:57 PM   #12
Nickz
 
 
 
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Quote:
Originally Posted by Art-Vandelay View Post
If you're not noticing the delay from Vsync, you're probably just not that sensitive to input lag. The lag I've experienced on my monitor at both 120hz and 144hz made the game unplayable for me.
No actually it's measured with a high speed camera to be no different than with it off. I'm fully aware of the delay and it's characteristics, and even have a nice write up of it here somewhere on SPUF.
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Old 01-02-2014, 02:35 PM   #13
TehButcher
 
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Off. There need be no better explanation.
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Old 01-03-2014, 01:14 AM   #14
iEuro
 
 
 
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It depends on your rig and monitor and your PC as a whole, it works good for some, it doesn't for others.

Since your refresh rate is higher than the usual tick rate, it could in some cases cause "tearing".

If you are not having FPS drops or tearing, you could try, the only way is to try it yourself, see if it causes lag.

If there are not issues, personally I would turn it off.
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Old 01-03-2014, 01:29 AM   #15
Warboss Choppa
 
 
 
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Off for all the reasons stated in this thread
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