So, how does Firefox 3.0 RC 1 compare? This latest run of tests was run on the same hardware and software platform as previous tests (to make sure nothing had changed we re-ran some of the browsers to check that we got the same results). Also added to the listing were Opera 9.27 and Opera 9.50 Beta 2.
Here are the results:
As you can see the difference between Firefox 3.0 RC1 and Firefox 3.0 Beta 5 is only a few milliseconds, but over repeated runs the lead it held over the other browsers remained consistent.
What's really amazing (and a little hard to take in) is that Firefox 3.0 is now nearly ten times faster at processing the SunSpider benchmark than IE7 is.
I also took the opportunity to put each browser up against the ACID 3 CSS compliance test. In this latest set of tests Opera 9.50 Beta 2 has taken the crown from the previous leader, Safari 3.1.