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My new HD6790 has no performance at all. - Page 3

post #21 of 26
Thread Starter 
Thank you all for your help.
I used driver sweeper to remove the drivers then I went back to 11.5 and I am now running BC2 at around 80fps avarage. My 3Dmark score was also P3375.

I am happy again biggrin.gif Thanks guys!
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Chris-PC
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post #22 of 26
Thread Starter 
This is very strange.

It keeps happening. When I load up a game I will get really low frame rates, then when I restart my PC and go back in the game the frame rates are back to normal (high). Once the frame rates are normal it will not change whilst playing the game. It appears when I have been doing a lot on my PC, like Internet browsing, opening different applications etc then I load up a game the frame rates will be horrible. If I load a game up as soon as I boot into Windows then it will be absolutely fine.

I am baffled as to what exactly is the problem.
Has anyone every heard of such problems?
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post #23 of 26
If you have youtube open or another internet browser that forces low-power 3d state, the card will not go up the gaming 3d state when you game.

Use afterburner to confirm you are running at full speeds while in the game and close all windows before running the game.
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post #24 of 26
did you check to see if 3d clocks get engaged?

In some games my card will stay at 2d clocks. (doesn't happen with BC2 for me, but it does in Black Ops and other games)
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post #25 of 26
It really sounds like your 3D clocks arent kicking in...
I'd return the card for another one.

I had that issue with my first GTX570
    
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post #26 of 26
This same thing happened with me when I first got Crysis 2. My GPU memory wasn't kicking up from idle so Iwas getting terrible framerates. Installing different drivers fixed the issue.
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