Quote Originally Posted by QuadDamage View Post
I'd say more like 10%. Look at the difference between the 5850 and 5870. 1440 vs 1600 SPU's and 100Mhz difference between the two and a measly ~5% performance edge over the 5850.

I'm thinking this Cayman might just match the GTX480.
If they switched to a 4D config as rumoured you can't extrapolate any performance numbers based on the efficiency of 5xxx cards. If AMD couples a 20% performance increase with a price drop across the board this would leave Nvidia yet again were they were before G104 launched. It's a good thing Quadros dominate the professional market which should allow them to weather almost any storm atm.