AMD :- AMD ATI Radeon HD 5800

ATI Radeon 5750 and ATI Radeon 5770 continue the ascension of AMD’s graphics label ATI on the market. They will have prices up to $160 and will ship soon to PC builders.
The main feature of these cards is that they scale back to 128-bit memory bus and fewer effects cores but continue to keep full DirectX 11 and OpenGL 3.x feature sets, like the 5800 series do. Support for multi-display Eyefinity is not discontinued. Still dual-slot cards, they are consuming less power – 86 Watt for the 5750 and 108 Watt for the 5770.
The range leader 5770 has 800 cores, half the cores of the predecessor 5870, but has the same 850 MHz main clock and 1 GB of GDDR5 memory at 1.2 GHz. The other card, 5750, has 720 cores, a 700 MHz main clock and 512 MB or 1 GB of GDDR5 memory at 1.15.GHz.
The Radeon HD 5770 card will cost $159. As for the Radeon HD 5750 card, two prices are available, following the two versions: $109 for the 512 MB of memory card and $129 for the 1 GB of memory one.
Manufacturers are waiting for these cards and are expected to have them available very soon.