[color:"orange"]I seem to be getting at least double the framerate in XP x86 than I do in Vista x64 for some reason.[/color]
I've seen reviews of a 30-50% framerate hit just in switching from XP to Vista (32bit). I'm not sure what the average is for DX9 games, though, or if the 64 bit version is any better or worse.
[color:"orange"]p.s. I can run Bioshock at 40-60 FPS (max details) and Lost Planet - Extreme Condition at 20-40 FPS (max details except shadows = medium) in DirectX 10 mode at 1920 x 1200 using Vista x64.[/color]
Does either game support DX9 / XP? If so, do you get better performance in XP?
Does the game resolution make a big difference with the frame rate?
If you start the game, do you notice any significant performance differences between XP and Vista, or any slowdowns or stuttering in either? Even if the configuration test gives a lower fps in Vista, there may not be much noticeable difference in the game itself.
