HIS H485F512P Radeon HD 4850 HDMI Dual DL-DVI HDCP 512MB 256bit GDDR3 PCI Express 2.0 X16 Video Card - Retail (RoHS) ATI Radeon HD 4800 Series Key Features GDDR3 memory,256-bit memory interface,DirectX 10.1 The ATI Radeon HD 4800 Series GPUs deliver a cinematic gaming experience with unprecedented performance ATI Avivo HD Technology HDMI Video and Audio ATI CrossFireX Technology