so i currently have a gtx 670 ftw but its screen tearing and just overall does not seem to run games as well.pretty sure its on it way out.so i was wondering what u guys think i should get.i play all types of games from planetside 2 to assassins creeds 4 to splintercell blacklist.willing to spend 6 or maybe $700.looking for ultra or pretty close.any opinions would be appreciated.
pc specs
i5 2500k 4.5oc'd
16gb corsair vengeance ram
670 ftw evga
asus p8z68 pro/gen3