AMD's recently released Radeon 5800 series compatible with DirectX 11, which the company has expanded by two very powerful graphics cards. Series 5700, which represent the cards Radeon HD 5770 and HD 5750 in terms of efficiency in 3D graphics processing followed by older models between 4850 and 4870 Both graphics cards have already hit the sales in the configuration of GDDR5 memory operating with a capacity of 512 or 1024 MB. Money, says AMD, is coming range from 109 (HD 5750, 512 MB of memory) for $ 159 (HD 5770, 1024 MB memory)