2006-08-XX ATI RV560 (Radeon X1700) Sped up version of the X1600, to be released as X1700. Rumoured to support a 256 bit memory interface, to improve performance. A higher-clocked RV570 version will also be out.
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