How OS X “Mavericks” Works Its Power-Saving Magic arstechnica.com

Hyper-nerdy goodness brought to you by Ars Technica’s Nate Anderson:

The overarching goal of the power efficiency changes is of course longer battery life, but Apple claims that it can acheive this without harming “and in some cases even improving” overall system responsiveness. Three main technologies make this possible.

Clever stuff.