Soldato
If that is indeed the performance at 607MHz (Generally matching or beating the 6990) then if it does infact overclock like the other GF110 cores (assuming the low core speed is for power management reasons) then it would leave an overclocked 6990 quite a way behind...
Shame that most won't overclock their GPU though and will just see it at face value and think "what's the point." But I'm certainly sure they will sell a few units.