My cpu is i7 5820k, 16G DDR4 RAM, win7 64 bit, 1080P monitor
both 344.11 and 344.16
gpu usage 45 percentage in World of tanks, about 55fps
gpu usage 60 percentage in Far Cry 3, in any setting about graphic, the fps always be about 30 fps
But it's normal in Battlefield 4. 100 percentage usage and it can have 100 fps.
And for test software like 3dmark 11, CINBENCH R15, HEAVEN BENCHMARK 4.0, the result of them is normal and great.
so it is the problem of drivers?