Hello, I've only bought one computer in my life, I bought everything that seemed top of the line at the time. Now I want to upgrade my Graphics Card, I had a 9800GT and was impressed with it, but, after 2 years, it stopped working, warranty replaced it, but I got a GTX 245, which I was not impressed with at all. So, im looking to get a 570 or 580, if someone could tell me if the extra cuda is even worth the extra $100 to $200. As well as, would the new cards be compatible or even WORTH buying with a P5Q Motherboard, and a E8400 Duo Processor, running 3.2ghz.
P.S. I am also running XP still. Should I upgrade to Windows 7 just for the Direct X?