M mehtab Distinguished Sep 3, 2011 3 0 18,510 Aug 11, 2012 #1 will AMD Radeon HD 7770 work on 700 watts psu I've already have Nvidia GTS 450
S strandiam Honorable May 9, 2012 52 0 10,640 Aug 11, 2012 #2 Yes. 7770 uses very little power and could run on much lower watt power supply. Upvote 0 Downvote