I have my gtx 560 ti and my amd fx 6300 and 8gb of ram. When I play heavy games like Call of Duty Ghosts and more noticeable in Battlefield 4 I get giant stuttuers. On 1600x900 I get 120ish fps and just by turning around or doing anything like shooting drops the fps down to 40 and causes a giant spike it is really annoying and I have seen videos of the gtx 560 ti handle it. I can load the game on Ultra even and it shows playable fps but it still spikes when moving around.