AMD's new flagship model, the dual-GPU graphics card Radeon HD 6990 is later than planned on the market. As a show at a presentation by AMD's graphics Chef Matt Skynner illustrated presentation slide, the video card should appear only in the first quarter of 2011. AMD originally had planned the launch for the end of the current quarter.

Rumor could also expected for the end of November the new AMD Radeon HD 6970 and HD 6950 delayed based on the new architecture Cayman something. Source even suspected that the graphics cards are not even before Christmas 2010 on the market. Reason to be manufacturing problems at the contract manufacturer TSMC.

The Radeon HD 6970 should their 3D performance with on Tuesday officially presented GeForce GTX 580 from Nvidia compete terms. In contrast to the end of October, featured AMD graphics card Radeon HD 6870and Radeon HD 6850 is on these models not only a slightly revised version of the 5000 series, but the real successor to AMD's Radeon HD 5870 and Radeon HD 5850.

The Cayman graphics chips of the 6900er series will bring a new shader architecture, unlike the previous two graphics engines and thus also have two tessellation units. With the Radeon HD 6990, AMD will then retrieve the title of the fastest graphics card, has now conquered the GeForce GTX 580 from Nvidia.