Hacker News Reader

It's a hardware thing, so no. Surprisingly though it isn't Nvidia's Optimus switching stuff but rather some proprietary apple concoction.

I had to fact-check this because some sites (including Ars) are incorrectly reporting that Apple does use Optimus.

Here is a link from Apple Insider discussing Apple's graphics switching: http://www.appleinsider.com/articles/10/04/13/nvidia_says_ne...