HIS H487F512P Radeon HD 4870 HDMI Dual DL-DVI HDCP 512MB 256bit GDDR5 PCI Express 2.0 X16 Video Card Retail (RoHS) ATI Radeon HD 4870 Series Key Features GDDR5 memory 256-bit memory interface DirectX 10.1 Redefine HD Gaming the ATI Radeon HD 4800 Series GPUs deliver a cinematic gaming experience with unprecedented performance. ATI Avivo HD is the advanced image and video processing and display technology found in ATI Radeon HD GPUs . HDMI Video and Audio a system with an ATI Radeon HD 4800 Series graphics card can help enhance the HD entertainment experience The technology combines the awe-inspiring capabilities of multiple ATI Radeon graphics cards.