Would I need more than 700-watts for my:
AMD Phenom II X6 1090T Processor, Black Edition
Gigabyte GTX 670 Windforce Overclocked 2gb
Hi - If you already have a 700w unit, it is way more than enough.
A quality 500w (what realhardtechX suggests) is plenty, and
leaves some headroom. If you already have the 700w, please
insure that it is capable of delivering it's specs, check a review
or post brand and model here.
2 - 670's in SLI require only 750w realhardtechX and that has headroom not 1,000w