A couple weeks ago we got an e-mail from ASUS that caught us a bit off guard. ASUS wanted to know if we were interested in a second sample of the NVIDIA GeForce GTX 580 graphics card for SLI based testing. Of course we jumped at the opportunity as we would love to see what a pair of NVIDIA flagship video cards has to offer in SLI and we are sure you would love to see the numbers as well. We also liked the fact that ASUS didn't want all the focus on their own card. It's not every day you see a company wanting to send you a sample and letting you put the focus on something else. In all honesty the ASUS GeForce GTX 580 video card they sent out differs from the NVIDIA GTX 580 reference design in that it has a 10MHz GPU overclock from the factory. Everything else on the card from the PCB design to the cooling solution is based off the NVIDIA reference card. We have already done a review on the GeForce GTX 580 video card, so we will be skipping the in-depth look at the card and the architecture as you can go back and read all about that if you'd like.