NVIDIA's GeForce GTX 580 in SLI: setting new records for dual-GPU performance

Picking up immediately from where we left off yesterday with our review of NVIDIA’s new GeForce GTX 580, we have a second GTX 580 in house courtesy of Asus, who sent over their ENGTX580. With our second GTX 580 in hand we’re taking a look at GTX 580 SLI performance and more; we’ll also be taking a look at voltage/power consumption relationship on the GTX 580, and clock-normalized benchmarking to see just how much of GTX 580’s improved performance is due to architecture and additional SMs, and how much is due to the clockspeed advantage.