Mau1wurf1977 wrote:6200 will be way too slow.
6800GT is quite powerful, should handle Doom 3 quite comfortably at 1024 x 768 resolution.
A good compromise would be the 6600GT 😀
Id reckon a 6800GT should be able to do even better than that, my Athlon XP 2800 + 5900 Ultra 256MB can run Doom3 pretty well at 1024X768, of course by pretty well I mean circa 50fps at high settings, Chaos Theory and Rome Total war suffer big time though , sometimes going into circa 15fps in the case or R:TW
I am planning to get an AGP based 6800GT just to see if there is a big CPU bottleneck and maybe keep it if the results are good enough, I just hope the 350W Enermax Ive got can handle that.
as for the question as others have said, a 6800 or the ATI equivalent , the X800 would make a good option, don't bother with the lower end cards, there is almost no benefit to it.