Now in version 2.5, the latest eXtreme Power Supply Calculator update adds support for a bevy of new videocards, including the Nvidia GeForce GTX 580, AMD Radeon HD 6870, and HD 5850.
For you workstation gurus, the latest version now recognizes a whole bunch of professional videocards, including 20 new Nvidia Quadro cards and 19 new AMD FireGL, FirePro, and FireStream GPUs.
Other additions include an option for a mini-ITX motherboard and Intel Pentium D 935 and 945 Presler chips. The Lite version is free to use and lets you estimate what your system power requirements will look like, while the Pro version (prices range from $1.99/3 days to $9.99/lifetime) goes into a bit more detail with info on individual rails (+3.3V, +5V, and +12V), recommended UPS rating, and more.
eXtreme Power Supply Calculator
