Dont have the game, but ive noticed DX11 features usually kill fps. For Anti Aliasing, there are usually nice performance reviews online...but I would compare lower AA (x2) against higher (x16). If you cant tell a real difference, go with lower.
also my monitor is 120Hz but in blackflag it wont go up to 120hz only 60hz and for anti alising which one should i choose for maxed out performance theres so many?
Dont have the game, but ive noticed DX11 features usually kill fps. For Anti Aliasing, there are usually nice performance reviews online...but I would compare lower AA (x2) against higher (x16). If you cant tell a real difference, go with lower.
AC4 is horrendously optimised. There's nothing wrong with your rig, but you will need to turn the settings down. I have the same system but with 2 GTX680s, running with just one the FPS plummets.