New 55nm entry-level and mid-range ATI graphics cards are expected in January 2008. The RV635 and RV620 will be upgraded versions of the Radeon HD 2400 (R630) and 2600 (R610), DigiTimes reports:
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).
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.
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.