r7 265 if you can get it will beat 260x.
7870 after rebate is 140.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131563&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
this r7 265 is 150 and comes with two free games.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127790&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=