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Here's the output from glxgears:

300 frames in 5.0 seconds = 59.959 FPS

My video card:

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

I'm not sure if it's normal here ?

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up vote 5 down vote accepted

Did you see this message when you ran glxgears?

Running synchronized to the vertical refresh.  The framerate should 
be approximately the same as the monitor refresh rate.

If so, then that would likely explain the framerate of 60, which is probably your monitor's refresh rate. If not, the standard warning applies: glxgears shouldn't be used as a means of performance testing your video card.

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yes , i did see that ! –  warl0ck May 9 '12 at 3:16
    
Do you know if 60hz is your refresh rate? –  SigueSigueBen May 9 '12 at 3:16
    
Yes , it was 60.1 hz –  warl0ck May 9 '12 at 3:18
    
Mine is 60hz and has the same lspci signature as yours. I can't say if this is standard or not. –  SigueSigueBen May 9 '12 at 3:21
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I'll bite: how do you glxgears so it's NOT synchronized to the vertical refresh? –  Bruce Ediger May 9 '12 at 4:54
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