AMD is losing the "X" prefix of its ATI graphics lineup, and slapping on "HD" to denote the changes and advancements in its R600-based DirectX 10 cards. Up top is the Radeon HD 2900 XT (the rumors were close), with 320 stream processors, double that of the GeForce 8800 GTX from NVIDIA. The lower-end RV630- and RV610-based cards will go as the HD 2600 Pro / XT and the HD 2400 Pro / XT. HD on all these cards denotes the Avivo HD technology on board for decoding H.264 and VC-1 video off of Blu-ray and HD DVD discs. The 2900 series also has full HDMI outs, with integrated 5.1 surround sound. No exact launch date or pricing yet, but we shouldn't have too much longer to wait.