ATI Radeon HD 5850 1GB DDR5 PCI Express (PCI-Express) Dual DVI Video Card w/HDMI, DisplayPort & HDCP Support ATI Radeon HD 5850 1GB GDDR5 PCI Express Video Card General Features: ATI Radeon HD 5850 graphics processing unit (GPU) 1440 stream processors 72 texture units 725 MHz core clock 1 GB GDDR5 memory 256-bit memory interface 1000 MHz memory clock (4000 MHz effective) ATI TeraScale 2 Unified Processing Architecture ATI Stream Technology