Laithan, no artifacts in benchmarks at 1320Mhz, but I'm some in games! (GTA V and BF4). I'm still on 347.88. I had to lower my overclock to 1306MHz and I'm STILL getting them (though less frequently). Even big pink squares occasionally in GTA V.
At this rate I might as well underclock this piece of crap! I'm really not sure what to do at this point. I've tried adding more voltage but that's not helping. I can use +150mv with Rbby258 hack which is about 1350mv under load (any higher and I get above 90c).
I'm going to try 352.86 and see if it's any different.
EDIT: Actually, after reading the comments about 352.86 on the guru3d forums I'm not even going to bother installing them. They're even more unstable... :/
This makes me wonder if Nvidia actually made certain processes so efficient in their drivers that the GPUs cannot handle it, like one person said it increases clock speed much faster now which is more than most GPUs can handle. This causes crashes. Oh well, I'm sure Nvidia will focus on fixing this in the next release since they don't have a game to be ready for.Edited by cookieboyeli - 5/18/15 at 11:18pm