Just got the GTX 670, stuttering problem in essentially every game, also grey lines going across screen.

Protectereli

Honorable
Dec 7, 2012
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0
10,680
Current gaming setup
965 ii x4 black edition
asus gtx 670
750w corsair psu
8g ddr3 ram

So, ive upgraded from the nvidia 240 to the gtx 670 and i am experiencing weird stuttering with 95% of the games I play

Assassins creed black flag=unplayable, game skips around.
Rome total war 2, somewhat unplayable, zooming in reveals the troops move and freeze every 3 or so seconds
State of decay, practically teleporting around it stutters so badly.
I took my computer to a tech and he installed new drivers and said nothing was wrong with the graphics card and that I was just having some optimization issues but I doubt it would cause problems on this many games.

Anybody know a fix for this problem or can identify whats wrong?
Could a cpu bottleneck cause stuttering?