VR-Zone quotes a source known only as "CJ" as saying both upcoming cards will be based on the same R600 graphics processor as the HD 2900 XT but will feature half the number of stream processors—in other words, 160. Information about the 2900 GT is reportedly scarce, but the site says the 2900 Pro will run around 600MHz, feature a 256-bit memory interface, score 8000 to 9000 points in 3DMark06, and come with a $249 price tag.
The same site also has word of a Radeon HD 2950 Pro scheduled for either the end of this year or the beginning of the next. The 2950 Pro will be based on the new RV670 graphics processor built on 55nm process technology. This card will be outfitted with 320 stream processors, a 256-bit memory interface, and come in two flavors: one running at 825MHz with 512MB of 1.2GHz GDDR4 memory, and the other clocked at 750MHz with either 256MB or 512MB of GDDR3 memory at 900MHz. Prices are expected to range from $199 to $249.