Limit FPS

Tips on how to tweak Nexuiz for the best performance

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Limit FPS

Postby Defeat » Sun Jul 27, 2008 10:01 pm

I've searched but I can't find how to limit my fps in Nexuz without using vsync.
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Postby tZork » Mon Jul 28, 2008 12:02 am

open the console (shift-esc) and type
Code: Select all
cl_maxfps 120

to limit your fps. replace 120 with the max fps you want.
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Re: Limit FPS

Postby Ed » Mon Jul 28, 2008 6:51 am

Defeat wrote:I've searched but I can't find how to limit my fps in Nexuz without using vsync.

Why would you want to limit FPS other than by using vsync? Unless your card does not have triple buffering there is no point in doing this.
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Re: Limit FPS

Postby Defeat » Mon Jul 28, 2008 4:04 pm

Thank you for the quick response.

Ed wrote:Why would you want to limit FPS other than by using vsync? Unless your card does not have triple buffering there is no point in doing this.

vsync is known to cause input lag and I also don't want to limit my fps that low. A stable fps is always better than a crazy one.
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Re: Limit FPS

Postby Xeno » Tue Jul 29, 2008 5:00 am

Defeat wrote:vsync is known to cause input lag and I also don't want to limit my fps that low. A stable fps is always better than a crazy one.


Does it really lag input? I haven't heard that before. Can someone confirm this?

Btw, if your fps is faster that your refresh rate, what good does that do? You can't see the frames faster than your screen can show them.
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Postby SavageX » Tue Jul 29, 2008 6:18 am

vsync for sure puts a bit of latency on the *output*. After all the GPU cannot just pump out a new frame ASAP but will have to sync for the video timing.


I play with vsync off (actually, I think vsync doesn't really work here at all with that ATI driver) and have cl_maxfps at 63. The refresh rate is 60 Hz and thanks to the framerate nailed at slightly above that the tearing will for my setup "distribute" nicely among frames (if one would set cl_maxfps to 60 the tearing would slowly drift across the screen as timing gets skewed, which is horrible).
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Postby Xeno » Tue Jul 29, 2008 4:55 pm

*disables vsync*
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Postby esteel » Tue Jul 29, 2008 6:57 pm

As far as i get it only vsync on and trible buffering can lead to slight lag.. as Savage said output lag which should be below 5ms.. but some people can feel it neverthe less.

vsync on and double buffering should not give lag but can lead to jumps in FPS if your card does not manage to output more the vsync fps..

and then again vsync off has none of the two but will show ugly tearing.

So what is best really depends on the person playing and what he preferes
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Postby Xeno » Wed Jul 30, 2008 11:33 am

I tried without vsync and I just can't get past the tearing (which is strange, because I never noticed it before on my old computer... maybe because the fps almost never got past the refresh rate :P ).

I'm not really sure how to tell if there's noticeable lag... aim would be the best indicator, but as I'm incapable of aiming, I'm left without an indicator.
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Postby esteel » Wed Jul 30, 2008 7:02 pm

Year tearing should be much more visiable the more fps you get as then the image output to the monitor changes more often.
The lag from trible buffering should really be hardly noticable.. the more fps you have the less lag there is.
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