Re: The GTX580 overclocking thread.
The three GTX 580s I have overclock to 860/2080 with 1.100V. SLI seems to limit the overall overclock and I like to have them all running at the same speed. I run them at a safe 820/2060 1.05V for 24/7 use. The cards are much much quieter than the three GTX 480s I had before.