Specifications graphics engine rx 580 video memory 8gb gddr5 stream processor 2304 units boost clock 1380mhz memory clock 2000mhz memory interface 256bit bus standard pcie 30 display connectors dl dvi dhdmidp x3 form factor atx cooler 3 slot fan sink power connector one 6 pin one 8 pin pci express connector crossfire support yes software crossfire opengl