[quote="spear-in-my-head":3fe2b]video resolution is the ultimate giver of FPS. and also the most noticeable [/quote:3fe2b]

I get the same frames at 1028 and 1200.

You're vid card may not be able to handle high settings as well as you think it should. I'd knock the reso down to 1028-780 and get medium setting on texture and terrain detail. And turn weather effects off.