I just got an R9 280x (managed to snag it while it was at its regular price for one day on Amazon). The first thing that I did was overclock the card, and it seems like a good overclocker. Ran Haven and 3dmark 11 at 1150Mhz core and 1650Mhz memory just fine. Most games that I have tried are fine and dandy (though I am having some trouble with Skyrim right now, but that was going on since before the new card). Anyway, in Need for Speed Rivals and Burnout Paradise City, I am getting what looks to be textures flashing all over the place constantly. When I take a still of it, it looks like just a little bit, but when they are flickering really fast, it takes up most of the screen (at least with Rivals it does, Burnout is a more tamed flickering). My psu is a gold rated Seasonic 650W, so I don't think that is the problem. I've never had this problem with my previous card, a 7850, and even played these exact games with no issues. I tried backing the overclock off to see if that was the problem, but even at factory clocks, the problem is just as bad. Besides that, I have very good airflow in my case, six fans in an Arc mini Rev1, but the 280x is putting out a lot more heat than the 7850 did. Could it be that I got a bad card?Also, I am running the 13.12 drivers.
(Note, anything around the edges is probably just my bad cropping)