Replacement for AMD Radeon HD 7500
I'm thinking about replacing my current AMD Radeon HD 7500 video card with something better, possibly something in the NVIDIA GeForce series of video cards. I currently have a Dell XPS 8500 computer with a 430 Watt power supply. I'd like to NOT replace the power supply unless necessary. What about a NVIDIA GeForce GT 630?
Thanks in advance,
Jim Driskell