With AMD officially announcing its ATI Radeon HD 4870 X2 GPU, the company has noted that its ATI Radeon HD 4800-series has boosted the company's discrete graphics card market share...

Following the recent launch of the ATI Radeon HD 4850 and 4870 GPUs, AMD plans to introduce the high-end dual-GPU HD 4870 X2 by the end of July, according to sources at graphics card...