So, how does Microsoft’s latest beta release of Internet Explorer 8 compare Mozilla’s Firefox 3.0.1 in terms of speed? Let’s find out in this quick head-to-head!

The tests

Two head to head tests:

• SunSpider JavaScript benchmark
• ACID 3

The results

The results speak for themselves:

The bottom line

It’s pretty clear from these basic tests that Internet Explorer 8 has a long way to go if it is to catch up with Firefox 3.0 in terms of JavaScript performance and CSS web standard compliance [UPDATE: Whoops, I meant web standards compliance, not CSS, I was still thinking in ACID 2 mode …].

However, I think that it is worth pointing out that when it comes to performance, Internet Explorer 8 Beta 2 is three times faster than the Internet Explorer 7. ACID 3 compliance however isn’t much better than that offered by Internet Explorer 7.

source

Lets wait and watch. IE8 is doing great so far.