With both 16 x AA and 16 x AF I get around 30 FPS on my system in open sea. In harbor and with ships blowing up it's very less
I run the game normally on 8xAA and 8xAF. Works very good and I have between 60-80 FPS. However, FPS is all over the place. It seems to switch between 60 and 30. Alternating back and forth, about once a second or so. It stays on 30 for a fraction of a second and immideately switches back to 60. Another second and it goes back to 30 for 1/30 of a second and back to 60. This causes the micro-stutters I see.
I've tried just about everything. Tried three different kinds of drivers and tried the game settings. I can minimize the stutters by removing Envirnmental Effects, Volumetric Fog and Light Rays. With those three off, I rarely, if ever, get the stutters. However, that's removing most of what is beautiful in SH4, so right now I put up with the stutters. *sigh*
