Originally Posted by Kaguya
Wow, that's nuts... there's something screwy going on. Have you tried uninstalling, cleaning and installing the newest betas (177.92 I think). They've been great for me.
Yeh I just formatted and installed 177.92 clean and it's the same
What I have figured out though, is that the lower fps with Enable SLI seems to be directly related to CPU/memory speed. If I go back to stock 2.4GHz, the fps will be about another 10 frames lower again (really bad). Increasing my memory clock from 800 4-4-4-12 to 1066 5-5-5-15 makes it increase by about 2-3fps.
Maybe enabling SLI automatically makes you heaps CPU limited? That's what I initially thought, because my results at 640x480 are identical to 1920x1200.