We've been hearing many good things about AMD's upcoming DirectX 11 GPU, code-named RV870. Starting with an early demonstration back in June, the company has been touting new features like tessellation, soft shadows, and ambient occlusion -- even offering a glimpse at them running on an “Evergreen” reference card at QuakeCon.

There are also rumors floating around about a 1.6x performance increase over current RV770 chips; and yet solid details regarding price are still elusive to us. Several sites have suggested a starting point at around $249. However, if Bright Side of News is correct, the first cards could sell for a bit more than that.
ATI Radeon HD 5800-series pricing revealed? - TechSpot News