Easy method to predict OC capabilities in current Nvidia GPU's

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enthusiast sharing useful knowledge, i thought it just doesnt work like this anymore these days?
good to see its not true... big thumbs up to you petri

interesting that lower leakage is better... i would have thought higher leakage is better under ln2...

Hehe Sascha! If I have not made any agreement with some third party, I am glad that I can share my information. No one can limit our freedom of speech on this one

AMD have been using low leakage chips long time. 5970 would not have been possible with normal Cypress GPU's. AMD also sold these low leak chips to vendors with better price.

Leakage and LN2 is interesting story. There is many other variables, which affect overclockability on LN2, so it is almost impossible to say, what some chips should do. On reference GTX 480 cards there seems to be almost perfect scaling, but with custom design like MSI lightning, it is more complicated. Power supply part is in major role on these cards, so high leakage and better PWM can produce very good results.

Thanks for this info. I'm downloading it as I type this.

I'll do benching tomorrow with Heaven to see how far I can get with this card.

I was still able to bench with STALKER and keep 800/1600/1750 stable right now on stock volts (1.050). I'll just see how far I can push this before moving the voltage up.

What is safe voltage for 24/7 on these cards? Some are binned low while mine is on the upper end.

That is the problem with these high VID cards. You are already near the heat and voltage limits and you don't have much headroom. You propably need to raise voltage and then you will get too hot very soon. It is sad, that we have this type of GPU's in the cards which cost so much.

Try with fixed voltage, when you test Heaven. (1.07V and 100% fan) Then we can compare the results with others. Then you can of course try how high it can go with more voltage.

I've notice this too on my 3 480 i,ve had. 1=1038mv, 2=980mv 3=1075mv

on water
first one max @ 930
2nd one max @ 950
3rd one max @ 888

you don't really need nvidiainspector, just check stock voltage in afterburner
i wish that 2nd card didn't died it looked like a monster!!!

Yes, afterburner show it as well.

That second card would have been very good on LN2 as well. Why all the good ones need to die I have one similar card and that is so far the lowest VID value I have seen. (0.980V or 0.988V)

3rd one is exactly like bad cards are.