The new chips will adopt a 55nm process, compared to 65nm of the previous chips, and will have core frequencies increased to 800MHz, noted the sources. The chips will be manufactured by Taiwan Semiconductor Manufacturing Company (TSMC).The official name of these GPUs will likely be Radeon HD 2650 and Radeon HD 2500 and both GPUs will be available in XT and Pro versions.
In addition, the chips will also support DirectX 10.1, Shader Model 4.1 and PCI Express 2.0, while output will be upgraded to include Display Port, added the sources.
AMD schedules to provide EVT (engineering validation test) samples of the RV635 and RV620 chips in October and will launch in January next year. said the sources.
To provide a better product transition between the new and previous chips, AMD also plans to have the new chips use the same PCB design as the previous chips to lower the risk of overstock PCB inventory, noted the sources.
AMD 55nm RV620 and RV635 in January 2008
Posted on Monday, Sep 10 2007 @ 16:42 CEST by Thomas De Maesschalck