Don't take my word for it, just look at the chart below which shows the latest iteration of Chrome, Chrome 10 Beta is 66% faster than the Chrome 9, in the V8 Benchmark Suite. You can pitch your current browser against Chrome and see to performance.
This version brings GPU accelerated video and I am sure we will see a significantly less CPU usage, now we experience with any browser. Synchronizing saved passwords, which could be encrypted, is added to syncing bookmarks, preferences, themes and extensions. So now you can do seamless transitions between computers and have all the tools at your fingertips.
You can find Sync capabilities under "Personal Stuff" under Chrome's setting dialog.
Google Chrome Blog: Faster than a speeding rabbit: speed, sync, and settings Sphere: Related Content