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 vendors. Evaluation samples are schedule to be available in mid-July, and AMD will begin shipping reference design boards with 2 GB GDDR5 memory at the end of the month, the sources detailed.

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