according to xbitlabs, a very respectable review site, the 580 uses 264 watts during gaming (http://www.xbitlabs.com/articles/vid...0_5.html#sect0
). furthermore, nvidia's website lists the 580 as 244watts (http://www.nvidia.com/object/product...tx-580-us.html
) and using a 6pin and 8pin connections (theres no way those connections could power a rig of 2 graphics cards that required 1000watt minimum lol)
companies tend to overstate the required wattage for systems because they need to factor in old and ****ty psu's that have the majority of their watts outside the 12v rail. an 850 will run your rig fine. mine probably hasnt even used 300watts lol
1000watts is wayyyyy overkill.
OP, i own the xfx black edition 850watts and its a great psu at a great price. itll do you proud Edited by Vuashke - 3/19/11 at 2:11am