PRODUCT SPECIFICATION Graphics Engine R9 280X Video Memory 3GB GDDR5 Stream Processor 2048 Units Engine Clock 880 M Hz Boost Clock 1030 M Hz Memory Clock 1500 M Hz (6.0 Gbps) Memory Interface 384bit Bus Standard PCI-E 3.0 Display Connectors DL DVI-I/HDMI/ Mini DP X2 Form Factor ATX Cooler 2 slot Fan sink Power Connector One 6-pin + One 8-pin PCI Express Connector Crossfire Support Yes (single Cross Fire connector) Open GL 4.2 Direct X Support 11.2 Minimum System Power Requirement (W) 500W