Call of Duty, Serious Sam: SE
Call of Duty
We're CPU limited initially but at the median setting, the 6600 GT's performance drops off that of the big two NV40 boards, boards that remain CPU limited even with a 3400MHz Extreme Edition. At the upper setting it looks like a driver bug, most likely in the setup of the memory controller, causes performance to take a giant nosedive. Something for the driver developers to take a look at. When fixed, the 6600 GT has enough potential performance to sit close to that 60% of 6800 Ultra limit we've seen already.
Serious Sam: SE
That rough 60% difference is evident in our second OpenGL-based test, Serious Sam: The Second Encounter. Memory bandwidth limitations allow the 256-bit NV35 board to creep up close at the upper setting.
