A big part of what's won Chrome a lot of converts is how much faster it is over the competition. That speed comes at a price, though: The web browser is notoriously a resource hog (especially if you have a dozen or so tabs open at once) and it dramatically cuts into battery life. As Google tells it, the latest version of the browser will help absolve those sins a bit. New tweaks include restoring only the most frequently used tabs should it detect that your machine is precariously low on resources, and a way of detecting when a page isn't busy with something else and using the free processor cycles to clean up idle memory.