Originally posted by: jclem
Are you saying that any current gen card is at least equal to the GF4?
More or less. Ok, since you're looking to play vintage 2002 or older DX7 and DX8 games, new card features won't do much good for you. Comparing raw processing power is pretty much all you gotta do.
Your current card has 1100 MPixel/sec pixel fill rate, 2200 MTexel/sec texture fill rate, 8.8 Gb/sec memory throughput.
An X300 has 1300 MPixel and MTexel fill, 6.4 Gb/sec bandwidth. So it wouldn't be quite as good of a performer, unless overclocked a bit.
A 9600 pro/x600 pro (same card, second in PCIe) would probably do better, since it's at 1600 Mpixel/Mtexel fill rates and 9.6 Gb/sec mem bandwidth. On average, the 1100 MPixel fill rate will be more of a bottleneck for directx8 games than a 1.6 MTexel/sec fill rate.
If you are getting a new box, consider spending a couple of extra dollars on a video card just in case a new game comes out you'd want to play. 6600GT and X700pro can be had for around $100 after rebate, with some careful timing. Be wary of suffixes -- for example, a 9550 has 1100 fill rates, but a 9550 Pro has 2000! Suffixes matter more than model numbers, in some cases. Look on gpureview before you buy.
You could also consider a used PC and/or vid card. Some obsolete hardware can be had for a song.