I try to find the best compatibility for the GPU i will buy for my current rig. Any advice on best GPU for the Asrock Z97 Extreme6 mobo ?

Here is my setup.

Mobo: Asrock Z97 Extreme6
CPU: Intel i7 4790k
PowerSupply: CoolerMaster V750 Gold
RAM: G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2133

I am currently running a dual boot system with Windows 7 PRO and Linux Mint 17.

I am willing to spend 350$ max on the GPU, any advice are welcome.

Cheers :)