Core code and process: RX550/14nm Unified shaders: 640 Core frequency/graphics memory frequency: 1071/6000MHz Memory capacity and specifications: 4G/128bit/GDDR5 3D features: DirectX 12/Mantle/OpenGL 4.5 OS features: Windows 7 (64)/Windows 10 (64) Bus interface: PCI-Express 3.0 x 8 Output interface: HDMI * 4