Hold on....
I'm doing great with 1 gig of ram. And only a P4 2.4 Ghz cpu.
My savior may be my X1950 Pro video card, but it still means 1 gig of ram is okay.
I have all my settings cranked to max, at 1680x1050. I get 50 fps interiors, and 30 outside, which is more than fine.
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