I have a 3770k and GTX 970
CPU runs at around 40% and I can't find any other bottleneck, yet the GPU doesn't exceed 70% and Far Cry is really laggy/jumpy when looking around. It actually jumps 30 or 40 degrees of movement when looking horizontally.
Is this to be expected? I've just been playing Unity and that's fully using the GPU and is nice and smooth.
Thanks
My MSI GTX 970 works fine. GPU usage goes up to 99% on occasions but stays mostly around 80%. Performance is very good, full nvidia settings apart from motion blur. Had a problem with the GTX throttling back to 50% GPU usage, but that was resolved by better cooling in the case.
I'd check to make your your GTX 970 fans were working properly and the overall case temps were normal.
SPECS
GTX 970
i7 4790K
16GB Ram
1080P at 59HZ
344.75 Geforce Drivers
Windows 7 64 bit