After being a longtime ATI user, I just switched to Nvidia partly to get a top of the line card, and partly because I'm getting fed up with ATI's habit of screwing things up on a regular basis. Anyway, after getting my GTX 580 installed, I'm curious about the stock clock speeds. With ATI, outside of games, the card downclocked itself to reduce heat output and energy consumption. So far with the GTX, it seems like the clocks stay at full power all the time, with only the fan ramping up or down depending on need. Is this normal behaviour for Nvidia cards, or should it similarly be underclocking itself outside of 3D applications? I know I can set up custom clocks speeds and all that, I'm just curious what the cards standard behaviour should be.