2005-10-05 ATI Radeon X1600 Mid-level GPU between R520, and RV515. Succeeds X600.
The different versions has had intersting project names such as Babelfish, Trillian, Zaphod Beeblebrox, Hyperspace Bypass, Arthur Dent, Slartibartfast and Marvin...
2005-11-09 ATI Radeon X1800 (R520) ATI graphics chip said to be nicknamed Fudo (after philosofer or theInq's newsman). Earlier rumoured to be the PC-version of the XBox2-specific R500, but more recent sources indicate that it is closer to the R420, while the R500 is part of a new generation. Hyper Memory included. R520 is said to be called Radeon X1800 at release