AMD today launched the ATI Radeon HD 4770 GPU based on the state-of-the-art 40nm manufacturing process with a launch prices as low as $99.
The ATI Radeon HD 4770 graphics card is the newest addition to the ATI Radeon HD 4000 series.

The ATI HD4770 features third-generation hardware support for the latest DirectX 10.1 games like Battleforge, HAWX, S.T.A.L.K.E.R Clear Sky and Stormrise, delivering higher game performance and improved visual quality when compared to DirectX 10.
Other features of the ATI HD 4770 include GDDR5 memory technology, second generation AMD Unified Video Decoder (UVD 2.0) technology, support for HDMI, picture-in-picture (PiP), and HD audio technologies like 7.1 surround sound.
AMD goes with the times an published a video on Youtube highlighting the features of the new ATI Radeon HD 4770 card. You can what the video below.