Since I am testing Firefox4b9pre if it can replace my Firefox 3.6 as primary browser Ihave decided to make a series of benchmark tests on the latest versions of my installed browsers. I have done Acid3 test a month ago, now I’m doing SunSpider 0.9 and 0.9.1. Note that I am using latest version of the browser available with the exception of Internet Explorer, where I use an outdated version 6.

Here are the results of SunSpider 0.9 on my browsers:

• Firefox 3.6.13: 1125.8ms +/- 2.0%
• Firefox 4.0b9pre /Jan 7th, 2011): 393.0ms +/- 10.4%
• Chrome 10.0.628.0 dev: 794.4ms +/- 17.8%
• Internet Explorer 6.0.2900.5512.xpsp_sp3_qfe.100427-1650: 38636.2ms +/- 10.2%

And here are the results of SunSpider 0.9.1:

• Firefox 3.6.13: 1652.7ms +/- 28.0%
• Firefox 4.0b9pre /Jan 7th, 2011): 437.7ms +/- 10.9%
• Chrome 10.0.628.0 dev: 428.0ms +/- 8.2%
• Internet Explorer 6.0.2900.5512.xpsp_sp3_qfe.100427-1650: didn’t finish the test (error interpreting javascript)

I can interpret these results in the way that Firefox4 seems the fastest. In SunSpider 0.9.1, however, Chrome won the contest, which is interesting – it’s the only browser that needed less time to finish the new version of SunSpider than the older one.

It’s a great result that new browsers are so much better on these benchmarks as the older ones. I hope that the future brings even faster browser, but not only on the test – preferably in the real life use as well.