At the end of the last year we tested AMD’s Radeon HD 6850 and HD 6870 graphics cards in CrossFireX mode and were impressed with the performance increase of such configurations over respective single cards which amounted up to 100%. AMD did in fact make it clear that they had overhauled their multi-GPU technology in the new Barts and Cayman processors not only on the software but also on the hardware level, so CrossFireX configurations could indeed be expected to work more effectively across more games and 3D benchmarks. We checked this out with the mentioned cards but what about AMD's top-of-the-line single-chip product Radeon HD 6970? Will it be that effective in a CrossFireX configuration and what will the temperature of two such graphics cards, installed next to each other into a system case, be? We will try to answer these questions in this review. For our testing to be not so narrowly focused and have a competitive streak, we will also add the results of Nvidia GeForce GTX 570s in single-card and SLI modes. Thus, we will see how the multi-GPU technologies from Nvidia and AMD compare in terms of efficiency.
Follow the source link for the full review.
source Xbit Labs
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