According to that card's specs, the minimum requirements are a 400w PSU. Correct me if I'm wrong Bill but does this mean that more is better? Anyway PSUs aren't my specialty but you should factor in for a possible expansion or system upgrade so that you won't wind up in the same boat that you are in now. If you think that you might be wanting to use 2 cards for more power then you will need a PSU with more power and more PCI-e power cables. Also considering that some higher end cards require a 6+2 cable and maybe even 2 cables you would definitely want 2 or more cables and maybe even a 6+2 cable.