Have been testing these cards for the past 24 hours. In a word: wow. I love them. Couple of tips for users: You need to use the LN2 BIOS (switch to the right) and it willl unlock 200% power and +100mV, you can verify up to 1.25V on a multimeter. The next revision of afterburner will allow up to 1.8V on the lightning cards *only*, it is due out soon per unwinder.
Thus far I have been able to do benchmark runs at 1352 mhz in SLI, although that is with 100% manual fan, which is obviously loud. The fans can run at up to 4200rpm if you want them to, you can get good cooling performance on air no matter what your overclock is. Obviously the highest settings aren't quiet, but to put things in perspective - 65% fan on this thing is 3000rpm fans.
This card has a TON of potential, can't wait for the unlocked voltage with the next lightning afterburner revision.
Thus far I have been able to do benchmark runs at 1352 mhz in SLI, although that is with 100% manual fan, which is obviously loud. The fans can run at up to 4200rpm if you want them to, you can get good cooling performance on air no matter what your overclock is. Obviously the highest settings aren't quiet, but to put things in perspective - 65% fan on this thing is 3000rpm fans.
This card has a TON of potential, can't wait for the unlocked voltage with the next lightning afterburner revision.