JavaScript Faster in Firefox 7

Today I used the benchmarks found at JSMark.com to test the latest beta of Firefox (Firefox 7).

My PC is a Core 2 E8400 @ 3.6 GHz with Windows 7 64-bit.

Here are the findings:

As you can see, Firefox 6 and 7 are both about 40-50% faster than Firefox 4 in the Modern CPU Test. In the Classic CPU Test, Firefox 4 still has an edge of about 10% over the others.

This means overall JavaScript performance is about 30% faster in Firefox 6 than in Firefox 4. In Firefox 7, it’s about 50% faster than in Firefox 4.

So while Firefox 7 does not deliver significant JavaScript performance advantages over the previous version, it does deliver quite a cumulative improvement over Firefox 4.