To put things in perspective, Google says Chrome's performance in the V8 and SunSpider benchmarks has gone up by "as much as 213% and 305%," respectively, since the very first beta version of Chrome. Those are some nice speed gains in less than two years. Google has apparently celebrated the gains by commissioning some interesting "real-life" speed tests:
The Chrome 5 beta has more than just performance enhancements, though. Google says it has improved its synchronization features so that users can sync browser preferences, in addition to bookmarks, across multiple installations. Chrome's rendering engine has gotten some new goodies, with support for HTML5 "Geolocation APIs, App Cache, web sockets, and file drag-and-drop capabilities." Lest Adobe feel left out, Google says this is the first Chrome release to integrate the Flash Player plug-in, as well—users no longer need to download it separately, and Chrome's auto-updating scheme will now keep the plug-in fresh.