The good folk over at OuterVision.com have released a new version of their eXtreme Power Supply Calculator, one of the handiest tools on the Web. Updates include:
If you've never used the eXtreme PSU Calculator before, give it a whirl the next time you're in the market for a power supply. The free version includes a ton of configuration options to give you a better than ballpark estimate on what size power supply your build will likely require.
Protip: Under system type, choose the number of physical CPUs you have, and not the number of cores. So if you're running a Phenom II X4 processor, you'll choose "1 physical CPU."