AMD Announces Radeon R9 280: Radeon HD 7950 w/Boost Returns
 

With the launch of the Radeon R9 series back in October of 2013, AMD began the process of releasing a number of their existing GCN 1.0 7000 cards as faster 200 series variants. Among the first were the 7970 and 7790, which became the R9 280X and R7 260X respectively; and since then we’ve seen the 7800 series released as the 270 series and 265, and the 7770 as the 250X. At this point AMD has released a 200 series variant of every major 7000 series card except one, the 7950, which was AMD’s lower end Tahiti card.

http://www.anandtech.com/show/7828/a...-7950b-returns