Is there such system or planed one that you can use onboard GPU until you start gaming then it would switch to another video card say like to a 4890. I'm asking due to the fact that systems take a hell load of power due to these cards, like mine at idle speed runs 230w now if it could turn it off and switch to the onboard v card or even a lower card it would save around 100w if not more. Like i would like to see SLI or CF mobos to be able to use a low end v card in the 1st slot and a high end one in the second slot. Or even a triple slot mobo. If not done why are they not doing so as i'm sure more people would be interested in such idea.