Originally Posted by Vonnis 15675 P score.
The best I can get that's truly stable is +100 on core and +300 on memory, giving me core clocks of 1197mhz on one card and 1215mhz on the other. Any higher than that will crash in Heaven, not always immediately but after it's been looping for a while. I might be able to push memory clocks a bit more, though +350 isn't stable so any further gains will be minimal.
Khemist, that's an awesome card you have there.
Can't really determine the card by the offsets because they vary from card to card and where the base core clock starts. Even with different offsets two different cards can hit the same base core.
I wouldn't determine how good the 680 is by a benchmark score because these 680s are not showing exactly their true potential in benchmarks. Take your card for a spin doing a gaming run and then look at your base core clock I bet you be a lot higher.
During the benchmark performance isn't being fully maximized in order to run. The 680 is not really a benchmark type of card anymore we can't force voltage and core clocks.
Everyone who bases how good thier card is by a benchmark trying to compare it to the 7970 is not an accurate way to do it. Where it counts the most is true gaming and where these cards fully shine and reach core clocks past the 1200s easily without any voltage increase.
Luckily we don't game in 3DMark 11 or Hevean benchmark.