graphics card

Looking at the specs for a computer for a friend and it has the AMD Radeon HD 6770 graphics card. Hard to find much information about this but from what I can read, the 6770 is simply an OEM version of the 5770. Is that correct? The reason I ask is that I thought I had read about AMD...

AMD today introduced its new flagship series of graphics processors which are designed for hard core PC gamers looking for top notch gaming performance are now shipping. The company says the the Radeon HD 6900 series which includes the AMD Radeon HD 6950 and Radeon HD 6970 graphics cards start...