when i play bf4 i have large stutters. so i had the graph displayed in the bottom corner of my screen of CPU and GPU. while playing i notice that every stutter that happen the gpu would hit the top of the screen ! and the gpu will stay their.
i cannot see the picture if any (blocked from here most likely)
try lowering the settings, even med is not that bad when you're too busy fighting as opposed to stopping to look at the graphics (i play bf3 bf4 all the time)