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Overclocking 4870 with ccc

  • Graphics Cards
  • Overclocking
  • GPUs
  • Memory
Last response: in Overclocking
April 27, 2009 11:38:21 PM

So i've tried to overclock my hd4870 with CCC, but it won't change the GPU clock. The memory clock changes but the GPU clock, whether I change the value or not, remains at the same speed. I don't know why it won't change the GPU clock and i know you guys actually know your stuff, unlike me. So i ask you, what's wrong? How do i fix it?

More about : overclocking 4870 ccc

April 28, 2009 1:18:57 AM

Probably because the card is downclocking itself in windows. You probably won't see the card run at its set speeds until it enters 3d mode in a game.
April 28, 2009 1:41:27 AM

yep, that's it. thanks :D 
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April 30, 2009 1:14:02 AM

so it says that it is running at the highest clocks CCC will let me overclock to, but i don't see ANY difference in games. there's about 1-2 fps difference in crysis, far cry 2, and the gpu tests in 3dmark vantage. on counter strike source stress test there is about a 5fps higher difference. shouldn't there be a bigger performance difference from stock clocks and overclocked

stock clocks:
750mhz core clock
900mhz memory clock

790mhz core clock
1070mhz memory clock
April 30, 2009 2:22:47 AM

not with such a minor overclock, no...if CCC won't let you push it further it's most likely because the card can't handle it 100% of the time. If you're looking for more performance, you're going to have to slap another one in with crossfire.