Yeah having the same issues in certain places in certain zones aswell on my 6870 and I've seen people with 7850 and up have the same issues. Soth Shroud riding west from quarrymill, I get serious micro stutter at the bridge. It's most noticeable in fullscreen mode, barely noticeable in max-windowed at 60 limiter. It's still not an issue with the cards or anything like that, it's purely a bug due to lack of optimization within the game.

I've had no similar issues in other games except in the BF4 beta, however those problems are gone as of two days back, since DICE patched their game quite quickly.

I assume this is what needs to be done by SE aswell, since the fps is steady in the Black Shroud areas but there is sever micro stutter. I cant recall seeing it in any other zone.