GPU Engine Specs: GPU AMD Radeon RX 580 GPU CODE Polaris 20 XL Stream Processors 2048SP Engine Clock 1257~1340MHz Memory Specs: Video Memory 8GB GDDR5 Memory Bus 256-Bit Memory Clock 8000MHz Technology Support: PCI Express 3 DirectX Support DirectX 12 OpenGL - Display Outputs 1 x HDMI 1 x DVI 3 x Display Port Resolution 3840 x 2160@120Hz Pixel DisplayPort Resolution 2560 x 1600@60Hz Pixel Dual Link DVI Resolution 3840 x 2160 @60Hz HDMI Resolution API OpenGL® 4.4 DirectX® 12 Shader Model 5.0 Recommend Power Supply 550W Power Consumption 125W Support OS Win 10/8/7 Accessories 1 x 8-pin power connector 1 x Driver CD 1 x User Manual