Radeon HD 4870X2 is the next high-end card from ATI (although we might regret saying that when you see the performance of Radeon HD 4870 alone). Like the high-end of the preceding family, ATI has bridged two chips on one PCB. The card is highly dependent on the drivers as it uses ATI’s multi-GPU solution CrossFireX for linking the performance of the two GPUs, and the drivers is suppose to be one of the bigger reasons AMD is holding off the launch until mid-Q3. The other reason is that AMD wants to make sure that it can pump out enough regular Radeon HD 4870 cards first without the GDDR5 supply becoming an issue. AMD believes that 4870 and 4850 are the cards that will hurt NVIDIA the most.

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