He's asking which is better and not what our personal opinions are.
The 260x graphics card is faster than the 8800GTX while consuming less power.
http://www.hwcompare.com/15633/geforce-8800-gtx-vs-radeon-r7-260x/
bmwmaniac :
memo5bebo :
i7 920 with 6gb ddr3 1600 ram with 8800gtx or amd fx 6300 4gb ddr3 1333 ram (will increase to 8) with r7 260x with no oc for playing latest game at 786p
In my personal experience always choose Intel over AMD so I would say go for i7.