FOUND AN ALTERNATIVE/WORKAROUND TO EVERYONE WHO ARE HAVING THE SAME ISSUE.(GPU NOT OPERATING ON FULL LOAD)
Yep, i Purchased Giagabyte gtx 970 about a week ago and i was facing the same issue with Ryse: Son of Rome where others were getting 70-80fps, i was on getting around 35-50 on everything maxed out, same with far cry 4 due to Low GPU utilization, with all my drivers updated, bios updated and everything you could possibly imagine.
Finally, I got frustrated and literally gave up, so last night I decided to install Dragon Age: Inquisition , and with the installation happening in the background, I resumed playing Ryse: Som of Rome, and the results were unbelievable !!!
Now the GPU was at full load, and the frame rated jumped to 80+ !!, I again tried Far cry 4 and got the same results!!
CONCLUSION: Run a CPU Intensive task in the Background and the fps will speak for themselves. It's a temporary fix until Nvidia release a fresh batch of drivers.
Lemme know if this works for you
Cheers!!!