AMD throws down the GPU gauntlet with new 4th-gen "Polaris"

AMD's new Polaris graphics architecture ushers in a fourth-generation graphics core, unheard of power efficiency, and perhaps more importantly for the company, hope. The company said Monday that Polaris will pack a mostly redesigned GPU including the new fourth-gen GCN cores, a new memory controller, new multimedia cores, and a new geometry processor. Perhaps more importantly, it'll be just as fast as a comparable Nvidia part, while using a lot less power, the company said. In a demo to the pres...