There will be 2 versions of RV670; Gladiator and Revival. Gladiator is clocked at 825MHz core and 1.2GHz memory while Revival is clocked at 750MHz core and 900MHz memory. Gladiator has 512MB of GDDR4 memory and Revival comes with either 256MB or 512MB of GDDR3 memory. These cards will be single slot and is fully DX10.1/SM4.1 compliant. It supports PCI Express 2.0, UVD as well as the next generation Crossfire technology.
RV670 is scheduled for sampling in September, MP in December and expect it to launch in end 2007 or early 2008. RV670 will be officially known as Radeon HD 2950 Pro when launch and will probably priced between $199 to $249