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Overclocking my GTX 480

post #1 of 6
Thread Starter 
Hello, I dont know much about GPU overclocking. I have an EVGA GTX 480 Hydro Copper FTW and am using EVGA precision tool to overclock.

Now I noticed when I increase the core clock to ~900Mhz, I get a nice boost in fps. But then when I raise the memory clock, the fps drops a bit. I seem to get the highest increase in fps when I only increase the core clock. Is this normal?
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post #2 of 6
yeah, coz' it almost approach the upper bound of overclocking. Actually memory clock makes little effect, tweaking it more hardly applies to performance. If you could not tweak it much more, need not to care about it, core clock is the main role of overclock.
post #3 of 6
I'm pretty sure the memory controllers on Fermi will slow down the memory if it detects errors (ie the memory clock is too high) hence the sometimes reduced performance with higher memory clocks.
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post #4 of 6
Thread Starter 
So it is safe to leave memory clock alone when overclocking the GPU? I always assumed there should be some sort of core/memory ratio that I should keep an eye on for a safe GPU overclock
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post #5 of 6
Damn I can't get my 480 past 845mhz on air...check my sig for my OC method if your're interested in comparing.
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post #6 of 6
only touch the core

cause the hydro copper is a great cooler when it come to cooling the core it might even be the best water cooling block but for the other stuff on the card it sucks... so only overclock the core if you need more info ask on the water cooling forum... I just had a similar question about the 580 hydro copper and they sad it similar to the 480 hydro copper....
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My build :)
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crucial mx100 256GB 3x1TB WD black rasa block + 2xGTX360 rad's + 2EK waterblocks DELL P2414H 
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corsair 1200AX HAF stacker G400,Performance MX, Roccat Kone XTD beyerdynamic DT 770M 
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intel core i7 920 gigabyte x58 extreme integrated water cooling nvidia gtx285 2GB 3x2GB Kingston 1333mhz 
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