I have bought MSI 1070 GTX despite everyone saying that it will bottleneck my FX 8320.
IT DOES NOT.
I have tested it on Witcher 3, Doom, Rise of the Tomb Raider, Grim Dawn, Overwatch and every game works perfectly without any bottlenecks. I am playing in HD, full / ultra / uber details in every game and I am getting constant 60 FPS.
Below is a graph (yeah, I use this one) of how much the CPU and GPU is used while playing Witcher 3
https://scontent.fwaw3-1.fna.fbcdn.net/v/t34.0-12/13578951_2062295023994979_1187346706_n.png?oh=5ed8f7e38a3070d8c7a8f8154e0d91e0&oe=577E1F74
My whole PC looks like this:
ASUS Sabertooth 990FX R2.0
AMD FX 8320
Patriot Viper 3 DDR3 2x4GB 1866MHz CL9
MSI 1070 GTX
So I am extremely happy with the GPU myself!