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Overcloking XFX 6850

Last response: in Overclocking
July 24, 2012 4:39:48 AM

Hello everyone , i bought my xfx hd 6850 dual dissipation and i made a little overclock in it without change any voltages , my overclock is good or are too high ? ( the max temp is 65° and the stock was 61° full load )

comparison between after and before the overclock ( 3dmark 11 )

i tried push the gpu clock to 940 but was unstable and needed turn back to 925

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a b U Graphics card
a b K Overclocking
July 25, 2012 6:52:50 PM

I've OC'd a single 6850 to a stable 900/1200 on stock voltage. Only time it would crash is if I tried to play ARMA 2 while over clocked. My temps were hitting 70-75*c when under super heavy load

New rig
I've got my xfire 6850s OC'd to 900/1150 stable but I havn't really been pushing that OC because I don't need to. Temps hit 75 when really grinding along but usually its 65-70*C range.
July 25, 2012 8:35:31 PM

I reduce the clock to 920 and 1120 memory clock , i saw some weird lines on the screen , i guess the can't be stable above 920mhz and 1150mhz without change the voltages , i really didn't see any artifacts just this weird lines when my pc was turned on
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a b U Graphics card
a b K Overclocking
July 28, 2012 1:46:27 AM

My highest stable clock was 950 / 1100

Didn't notice an improvement over the 900/1150or1200 clock speed.
July 28, 2012 11:43:39 AM

i tried 940 / 1150 the improvement was minimum but if you test for many hours you will see the its not stable
August 4, 2012 12:50:16 AM

Best answer selected by victorl2.