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Performance Per Watt Performance Per WattIn order to calculate overall performance per watt, we took every single game benchmark we ran (Unigine was not included), averaged out the average framerates at all resolutions and then divided that by the Max Board power as supplied by both NVIDIA and ATI. The results are thus calculated in watts / average frames per second. In order to decrease any abnormalities, the highest and lowest score attained by each card was eliminated. Wattages are as follows: GTX 480: 250W GTX 470: 215W HD 5870: 188W HD 5850: 151W  Honestly, this result isn’t as bad as we thought it would be but it is still obvious that NVIDIA’s architecture simply can’t compete with ATI when it comes to overall efficiency. The main problem as we see it is not the actual performance of the GTX 480 but rather the approximate 62W difference between it and the HD 5870. | ||||
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