Yesterday we took a look at the latest nVidia card, the GTX580.Unquestionably this fixed a lot of the issues that we all had with the GTX480, primarily the heat and noise but also the cut down performance.We were left with the overriding impression of the decimating horsepower available at our fingertips and how nVidia have regained the top spot as the graphics card of choice.One thing though is missing. If one card is good, then two cards must surely be great. We couldn't resist finding out and so a quick phone call to ASUS and we had two reference GTX580s on hand, ready to see if we have enough rendering performance to change the rotation of the Earth.