Well what are the amps next to those volts?
Anyways what would be your budget of what your willing to spend? 150? 200? 250?
Best price performence like I said is the gtx 460 but the card is 200 and a PSU would be 30-50 so I would go for a 5770 + a PSU for 180-190 anything lower would be say a a 4850 like mag
look here
http://www.tomshardware.com/reviews/...ng,2697-3.html
Maynard stop it with the 9800 GT, at that price the 4850 is better more powerfull card and uses less power, when you upgrade you get the best you can for your budget at the current time, not what was the best for the budget 2 years ago