i just installed a gigabyte gtx 760 windforce 4 gb rev 3.0 i talked to the people on new egg and they said it should fine i was playing lol and at the beginning i had 300+ fps by the middle of the game i had 150 maybe lower do you think its because my power supply isnt giving enough juice to it here is the link to the psu
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022