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crossfire's different benchmark

post #1 of 4
Thread Starter 
ok this what happened. i have a 5870 and a 5850 toxic, i installed the 5870 on the top and 5850 on the bottom.. i used heavene benchmark to check my scores with this set up, i got 63.5avg and 62avg, also in mafia 2 i got 88.7 and 87.5 avg fps

and then i put my toxic on top and 5870 on bottom. i got higher score in heaven and mafia. in heaven i got 64.7avg fps and mafia i got 89.+ fps.. same setting.

i know the margin is only 2fps but still..

i never get this avg fps in my while my 5870 is my upper card.

is this weird?

btw, i put my 5870 on the top because i though my gpus were burning coz while i was benchmarking i smelled something burning then i smelled my gpu, i smelled like they were burning then i shut my pc right away.. then after that i checked our window, it wasnt my pc thats burning, it was our neighborhood cooking or i dont know..
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post #2 of 4
I think no matter what pci-e slot you put them your 5870 will be downclocked to 5850 speeds. The fps will fluctuate a bit and 2fps seems normal.
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post #3 of 4
Thread Starter 
i overclocked my 5850 to match my 5870 speed. 900/1200, i might try putting my 5850 on the top again and will see what happne
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post #4 of 4
With such a small difference I think its possible its just normal. To be sure its the card swapping causing the difference you should run each bench 3 times and take an average score.
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