Google began updating Chrome users with the new beta version, and my performance tests show the company has ratcheted the browser's speed up another notch.
Google's tests aren't the only game in town; many use the SunSpider test. Here, too, the new Chrome got a notch faster, getting the test done in 2,546 milliseconds compared with 2,904 milliseconds for 0.3.154.3. (We couldn't test the first version because the testing site was down at the time.)
On blogger Matt Asay's advice, I tested Minefield, the cutting-edge version of Firefox that's updated daily. (Minefield is downloadable from Mozilla's FTP site for those willing to use very untested software).
It had the best SunSpider score so far on my machine, 2,147 milliseconds. However, Firefox still lags on Google's speed test. Chrome's latest score of 2,546 is miles ahead of the 215 score from Minefield.