mr_mike

GPU Wars: Attack of the $200-300 GPUs

"....I don’t see how a chip designed for the $300 price point, such as ATI’s, is going to scale far into the high end of professional workstation graphics. It seems that it would be more difficult to scale up a GPU than to scale down: to add to the complexity, than to simplify a design....."

Professional cards workloads are very different than gamer cards
and considering that the single chip 4870 can to 1.2TFLOPs vs a single 280 doing only 0.933 TFLOPS. So for pro cards they don't need to scale anything up, the drivers are different to reflect the different workload.