That benchmark was full of crap the 290X out performs the 970 in GTAV unless your using old drivers. Really hate benchmarks trying to use latest drivers on Nvidia and using 6 month old drivers on AMD.
The 290X even out performs the 970 in gameworks games that force physx like Witcher 3.
Considering I have a 260X and a 8320 and get better FPS than that says a 290X gets with an 8350 I call it bs.
And if your arguing the CPU utilization on Nvidia they already fixed that on Windows 10 drivers and that was exaggerated by Digital Foundry they were caught using different settings on their games arguing bias against AMD.
This thread did a good rundown of GPU performance in recent games (since maxwell was released)
GTX 980 = 100%
AMD R9 290X = 94.48%
GTX 970 = 88.28%
AMD R9 290 = 86.87%
GTX 780TI = 80.69%
GTX 780 = 71.03%
R9 280X = 69.66%
GTX 770 = 54.48%
http://www.overclock.net/t/1529108/are-nvidia-neglecting-kepler-optimization-since-maxwell-release
On Windows 10 AMD has huge benefits as well already (Drivers have been ported to W8/W7 for similar improvments as well) with the new driver team they have.
Also judging by how fast Nvidia killed kepler cards intentionally do you really think the 900 series is going to last long
Do you also wanna note how weak Nvidia's DX12 support is compared to even 3.5 year old GCN 1.0 cards
https://en.wikipedia.org/wiki/Direct3D#Direct3D_12_levels