Yar as the requirements said u can even run on a dx8 card.
You need to have at least a dx8 card. so if u can get ur hands on a lower end card it can do.
if u got pentium 4 buy 8600 gt used or 8800gt used. so u can play this game on high even
but i prefer DDR3 memory of any card u buy.
but u need to have atleast 300w of power supply.
So if u want to play this game buy a lower end card ddr3 like 7300, 8500 which can run under 250w of psu even.