Product Model: RX580 8GB• All the chips RX470,570 and 580 have been mixed together before production send random• 100% tested working before shipment• 100% Genuine 8GB GDDR5 256 Bit• The maximum resolution:4960 * 2160• Interface Type:PCI Express.16X• IO interface: DisplayPort , HDMI- compatible • 3D API: DirectX 12• Support HDCP:YES• Power connector: 8pinStream processor: 2048SPCore frequency: 1168-1286MHzMemory frequency: 7000MHz• Recommended power: 500W aboveSupport system : Windows(64bit) ,Windows 10(64bit)