So i have a gtx570 and noticed that i get fps drops if i play on 1920 x 1080 with ultra settings and dx11 and high res textures pack enabled. My question is if its better to play on 1920 x 1080 on extreme settings or on 1280 x 720 with ultra settings(here i notice my fps go above 60 since i have a 60hz tv, i have to enable vsync to prevent screen tearing ) Of course dx11 and high res textures are enabled for both.

Disable dx11. There's barely any difference noticabla