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Is performance lower on Windows 7 x64?

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Last response: in Windows 7
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November 18, 2009 8:52:00 PM

So I have a custom built desktop. It was actually out of commission for awhile because of bad power supply. I recently got it running again, installed Windows 7 x64, and purchased a few new games. I feel like the framerates I am getting are lower than what they should be. The specs are:

Motherboard: Asus m2n sli-deluxe
CPU: AMD AM2 dual 4200 (2.21 GHz)
RAM: 6 GB ddr 800
Video: Nvidia 7950 GX2 1 GB PCI E
Hard Drives: They are older than the comp is, 7200 RPM I believe.

I turn everything down to minimum on team fortress and still get framerates in the low 20's in lots of action. I was wondering what my bottleneck might be. I am curious if Windows 7 might cause a lower performance because of being new (optimized drivers?, etc?). Also I wonder if the virtualization of the 32 bit games is causing any lower performance? Any insight would be greatly appreciated.

a c 215 $ Windows 7
November 18, 2009 11:07:45 PM

Enter the nVidia control panel and make sure you have Multi-GPU mode enabled. This sets both GPU's on the 7950GX2 to work together in a sort of Pseudo-SLI mode (some argue that true SLI requires 2 cards and an SLI bridge, but the dual GPU card solution gives you basically the same thing).
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