rockie_ :
Get GTX 970 it draws less poower . GTX 970- 145W but R9 280 CF - 450-500W Also one card is better .
^That is also true, I assumed you already had a 280, but if you don't, grab a 970. Doesn't perform as well as dual 280s but its also a hundred bucks cheaper and you can upgrade to dual 970s in the future.