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[Rattlehead]

Originally Posted by Rattlehead

It's worth a shot...although for some reason with the 11.5 drivers I get huge artifacts with buildings on unlimited. But there are some other things I'm going to try before spitting my dummy out. (Kidding.)

Well, egads.

Turns out the artifacts with buildings set to unlimited and stutter I was getting was not video related, or at least it doesn't seem to be the case.

I downclocked from 4.5ghz to 4.2ghz and voila! Artifacts gone and stutter is pretty much gone too.* It may sound strange, but my vcore (1.32v) might not have been quite enough juice at 4.5ghz.
I'm not 100% sure if it really is the case, but what else can it be, with everything else the same?
(Temps were okay at 4.5ghz, so heat was not the issue.)

*Except for the first 30 seconds or so over London.