Wow... I'm amazed by the claims being made here. I have EVGA GTX 470 SC 1280MB in SLI with custom BIOS running at 1150mv. I've unlocked the voltage to 1200mv, and have set custom power level voltages. One of the cards is a slightly different revision and hasn't got a backplate and had slightly different power profiles. I retained the original BIOSs in case anything went wrong. The cards are currently set to 810MHz core and 1800MHz memory running at 1150mv. I reached these figures by running the in-built benchmark in EVGA OC Scanner and detecting the best speeds as per the results.
I have a few serious questions for 460 owners.
How can I possibly reach 900MHz? The cards crash at 850. They don't like anything over 2000MHz memory, and I find that this actually hampers test results. I was always taught that a higher core is better than higher memory; so I ran the cards at 825/1900 for ages, and then when I re-installed Skyrim to play again, the cards crashed at ANY overclock.
I understand the chip binning process, but how can 460s "always clock to 800-850, and sometimes clock to 900MHz+?!
I have disabled linking and one card does slightly outperform the other, but not enough to reach 900 let alone 850MHz.
I have also ran the cards higher than 1250mv, and the results were interesting... Temperature is not an issue, but stability is.
I test for stability with Unigine Heaven max on loop.
Can anyone help me past 850MHz? I need the extra power for GTA IV, which I know is 'poorly optimized', bla, bla, but it's a poorly optimized game that responds well to better hardware!
Bump me to another thread if I'm waffling on in the wrong place! It just seems that 460 owners have got it made!