http://www.howtocreate.co.uk/browserSpeed.html#winspeed
As you can clearly see, as I've always said, Opera is the best browser on the planet. Here is the conclusion of the tests:
I've gotten shit from people on this forum for using Opera, because it is a pay browser. It's an excellent value, though. Version 7 came out in January 2003, and right now it's in version 7.54. They have new releases with more features every few months, and work on a proper revision release protocol... For example, they don't just go 1.0->1.5->2.0, they release in tenths places, so 7.01, 7.02, 7.03, so we get more stuff for a longer period of time. With that $39 you get free upgrades for the entire duration of the version, so if you buy during 7.0 you get updates all the way up to 7.99. It's been over two years, and they aren't near that point yet.So overall, Opera seems to be the fastest browser for windows. Firefox is not faster than Internet Explorer, except for scripting, but for standards support, security and features, it is a better choice. However, it is still not as fast as Opera, and Opera also offers a high level of standards support, security and features.
On Linux, Konqueror is the fastest for starting and viewing basic pages on KDE, but as soon as script or images are involved, or you want to use the back or forward buttons, or if you use Gnome, Opera is a faster choice, even though on KDE it will take a few seconds longer to start. Mozilla and Firefox give an overall good performance, but their script, cache handling and image-based page speed still cannot compare with Opera.
Right now if you buy 7.54, you get a free upgrade to 8.0 when it comes out, which means you'll get free upgrades to 8.99... 8.99 won't be out until probably the end of 2007, so it's a great value for the fastest on the planet.
Open source starves babies.