AMD's Radeon HD 5770 and 5750 graphics cards
 

In just a few short weeks, AMD's DirectX 11-class Radeon technology has migrated from the high-end 5800 series to the mid-range 5700 series. Now you can pick up a DX11 graphics card for $159 or less. Is this the right upgrade for you? We're on it.

http://techreport.com/articles.x/17747