As expected, Sapphire has announced two new graphics cards that will be a part of its HD 7790 lineup, the reference clocked HD 7790 and the factory-overclocked HD 7790 OC Dual-X.

Although clocked at reference 1GHz GPU and 6000MHz memory clocks, the Sapphire Radeon HD 7790 will also use custom cooler with a single center placed fan, but will be priced at a suggested retail price of US $149.99.

The Sapphire Radeon HD 7790 OC Dual-X on the other hand works at slightly higher 1075MHz GPU and 6400MHz memory clocks and uses Sapphire's recognizable Dual-X cooler with two 80mm fans. The Sapphire Radeon HD 7790 OC Dual-X will be priced at US $159.99.

In case you missed it, the Radeon HD 7790 is based on AMD's 28nm Bonaire GPU and packs 896 stream processors and 1GB of GDDR5 memory paired up with a 128-bit memory interface.