Originally posted by: RussianSensation
Originally posted by: CP5670
Both of those games are RTSs and rather CPU dependent, although with a video card that old you may be more limited there.
In fact only 1 of those games is CPU dependent.
Supreme Commander CPU scaling
vs.
C&C 3 CPU scaling
X2 4600+ will hardly bottleneck C&C3
C&C 3 GPU scaling
Supreme Commander GPU scaling
Something like 8600GTS or X1900XT will provide a significant boost over X850 series. However, you might want to save for HD3850 series.
For that sized resolution you're gonna need a 512MB card
Very few games (i.e. World in Conflict, Company of Heroes and Crysis) actually benefit from 512+mb of ram at 1600x1200. For the abovementioned games an 8800GTS 320mb will provide playable gameplay at 1920x1080 as neither is memory limited.
In fact, you should recheck your benchmarks because at 1600x1200 8800GTS 320mb easily keeps up with HD2900XT and even outperforms it -
Benches
The limiting component today at 1600x1200 is generally GPU performance. By the time most games require 512mb at this rez to play smoothly, no GPU today will be fast enough.