Model name radeon™ rx 580 8g Graphics processing unit radeon™ rx 580 Interface pci express x16 Core clocks up to 1340 mhz Cuda® cores 2304 units Memory speed 8000 mhz Memory 8gb gddr5 Memory bus 256-bit Output displayport x 3 (version 1.4) / hdmi™ 2.0b Hdcp support y Power consumption 185 w Power connectors 8-pin x 1 Recommended psu 500 w Card dimension (mm) 243 x 111 x 40 mm Weight (card / package) 650 g / 1244 g Directx version support 12 Opengl version support 4.5 Multi-gpu technology crossfire™, 2-way (bridgeless) Afterburner oc y Maximum displays 4