AMD is preparing to release the second GCN-based SKU, Radeon HD 7950 on January 31st. Unlike the HD 7970 Dec 22nd paper launch, this should be a hard release with retail availability, slipping in under the HD 7970 with an expected retail price of $449. Radeon HD 7950, as it's name suggests is a harvested Tahiti chip with 28 CUs enabled, for a total of 1792 SP and 112 TMU. However, all memory channels are enabled and the 384-bit interface will drive 3GB GDDR5 memory. A cheaper 1.5 GB variant is also expected in the future. Clock speeds and performance are not known yet, but judging by the general specifications and price, it should end up edging out the GTX 580.Following HD 7950, both Pitcairn / HD 7800 and flagship dual-Tahiti New Zealand are expected to release in February/March 2012. Interestingly, Fudzilla also report that NVIDIA is planning to release its first Kepler GPU - GK104 - around the same time. Source: Fudzilla
Read more: Report: AMD Radeon HD 7950 releases on January 31st by VR-Zone.com