Power Color R9 270 2GB GDDR5 DVI HDMI Display Port PCI-E Graphics Card PRODUCT SPECIFICATION EAN CODE AXR9 270 2GBD5-TDHE/OC 4715409183754 Graphics Engine R9 270 Video Memory 2GB GDDR5 Stream Processor 1280 Units Engine Clock 930 M Hz Boost Clock 955 M Hz Memory Clock 1400 M Hz (5.6 Gbps) Memory Interface 256bit Bus Standard PCIE 3.0 Display Connectors DL DVI-I/HDMI/DP Form Factor ATX Cooler 2 slot Fan sink Power Connector One 6-pin PCI Express Power Connector Crossfire Support Yes (single Cross Fire connector) Open GL 4.2 Direct X Support 11.2 Minimum System Power Requirement (W) 500W