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
2006-H1 ATI R500 High end ATI graphics chip for XBox2 built in a 90 nm process. Part of a new generation, comparable to R600 for the PC.
Early on reported to "have 10 times higher geometry and 4 times higher pixel performance compared to the RADEON X800 XT" (believe it if you want to).
May support WGF and Pixel and Vertex shaders 3.0 with 128 bit precision. Also known as Xenos.
2007-05-XX ATI R600 PC-chip that shares a similar design to to the R500 for XBox2. Likely to support WGF. Delayed from earlier forecasts. Will be large, hot and fast... Equipped with 320 stream processors. Named ATI Radeon HD 2900