Sapphire Radeon HD 7950 3GB DDR5 Overclocked Version DX11.1 Video Card Review @ HTL
 

The Sapphire Radeon HD 7950 Overclocked Edition pumps up the original stock model. The HD 7950 OC Edition comes with a factory overclock with the core set to 900MHz. Also included is Sapphire's new dual-extractor technology, or Dual-X. The Dual-X is a secondary cooler with an efficient multi-heatpipe design and dual fans. This improved cooler keeps the card cooler and quieter under idle and load conditions. Onboard is 3GB of fast DDR5 memory with an effective clock speed of 5Gb/s. Features of the new 7950 remain in tact, such as the new Graphics Core Next, or GCN. This is AMD's term for their new 28nm architecture.

http://www.hitechlegion.com/reviews/...7950-oc-review