So... I put my old 8800GT 512MB card into my gf's computer that's running Win7 RC on an AMD 3700+ (2.2Ghz) with 2 MB ram, using the 185.85 drivers for Win7 32bit. Nothing is overclocked.
Now, when it was in my XP system, the 8800GT gave me great frame rates in Cod4 at 1600x1200 with everything maxed. In Win7 on my gf's comp, Cod5: World at War stutters pretty badly at 1600x1200, even with most of the eye candy disabled and textures set to Normal. I know these are different games, but couldn't I expect slightly reduced frames in Cod5? It's the same engine afterall, just tweaked a bit more.
Cod4 was smooth at max settings on my XP system with 2 Gigs of ram... Cod5 is not playable at 1600x1200 even with most of the eye candy disabled. What gives?
I haven't tried rolling back to earlier drivers, but I will definately try that. Is it Win7 that isn't really optimized for gaming yet? Or is it that Cod5 prefers a faster CPU as SickBeast reported above?
Also, this is the only game that I've tested out on this system so far. I'll get TF2 up and running and hopefully get some better performance in that game at 1600x1200.