XFX RADEON R9 390 XFX Radeon R9 390 is clocked at 1050Mhz with 8GB GDDR5 clocked at 6000mhz. XFX Radeon R9 390 has memory interface of 512bit with 2816 shaders with directx 11.2. Software used was:- Battlefield Hardline, Crysis 3, Dying Light, Metro Radux, Sleeping Dogs, Watch Dogs, Witcher 3 and Final Result. CPU used was AMD FX 8350 with Gigabyte GA78LMT S2P Motherboard using Windows 8 Operating System."