The new beta also includes preliminary implementation of GPU-accelerated video. A user with the new beta who has a capable graphics card should see a decent decrease in CPU usage. In full screen mode CPU usage is touted to drop by as much as 80-percent! For notebooks this should give you a substantial increase in battery life.
It also includes a function to synchronize your saved passwords across multiple computers, as well as bookmarks, preferences, themes and extensions. For those who are security-conscious, it also adds the ability to encrypt your synced passwords with your own secret sync passphrase. To enable this, visit "Personal Stuff" in Chrome's settings dialog.
Last of all, Google have tweaked the look and feel of the settings dialog. Instead of it opening in a separate window, it will open in a new tab. Features within this include the ability to search for a configuration setting (in case you can't remember the name, which comes in handy with the 100's of settings included). Also, you can now jump directly to most settings pages using their own dedicated URL's, without needing to navigate through a sequence of windows.