Claims ATI Radeon chip offers 30% to 50% more performance than Nvidia offerings

(Computerworld) Advanced Micro Devices Inc. has thrown down the gauntlet to graphics rival Nvidia Corp., unveiling a graphics card that runs two graphics chips.

AMD today unveiled the ATI Radeon HD 4870 X2, which uses two units of a smaller chip -- the 4870 graphics processing unit (GPU) -- rather than one big chip. The dual-GPU technology, said AMD spokesman Matt Skinner, provides 30% to 50% more performance and uses less energy than Nvidia's GTX280 graphics card.

The performance boost comes from having two chips on board along with the improved their chip-to-chip communications technology in the card, Skinner added.

"We wanted to develop a graphics card for enthusiasts," he said. "We developed a chip targeted at performance. And then we took two of those chips and put them on one card. People have tried to build bigger chips, but the problem has been heat and cost. It's difficult for them to put two on one board because of space and power limitations.".............


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