I used ATITool, my ATI tweaking utility of choice. I had read that this card offers a ton of headroom, and now I have confirmed it. I was able to reach overclock speeds of 595MHz on the core and 610MHz (1.22GHz) on memory. In case you haven't figured it out yet, that's almost a 50% overclock on the core and 25% on the memory!



Link: GamersHell