All browser benchmarked with task manager priority set to real-time
Except for Apple Safari 5.1, none of these browsers tested are actually officially released...Firefox 8 still has nightly to go through, then Aurora, then beta, then release candidate before it is released. There will still be firefox 6 and 7 before firefox 8 appears in many months. Chrome beta 13 will soon appear as chrome 12 is the current version, and opera 12 isn't even alpha stage. Opera 11.5 was just released, so expect months before opera 12. Internet Explorer 10 will be out in months also, it still hasn't even reached beta or release candidate stage yet.
At the current time, Chrome Beta and Opera 12 absolutely demolish the rest of the crowd. And out of those two, chrome is a slight winner. Even though I use Firefox 8 nightly right now, I recommend Chrome 13 beta currently to anyone who wants to step out bounds and play with beta's/alpha's...etc...as it appears to be the fastest/best overall browser.
If you would like to try any of these browsers, here are the links:
At the current time, Safari Webkit.org nightly builds are having some issues getting to work properly. It is a known error. I'll update once It gets working.
In addition, I didn't realize that Google, on top of a beta release, also has Dev-channel, and canary. Canary is the equivalent to firefox nightly, code is updated daily and is the most bleeding edge, after that it is sent to dev channel and then beta. I will update my chrome performance test using Chrome Canary also.
The browsers I tested are the BIG 5, if anybody knows another browser worthy of notice, please comment and I'll test it and add it . I don't care how much percentage of people use it, if its a good browser, it deserves a spot. Having better browsers is in everybody's interest which is why competition must be provoked.
If anybody knows if any of the browser I tested have more unstable/bleeding edge versions, please say. For example if safari has a beta/dev channel that I missed or if IE has an alpha/pre-alpha stage that I missed. I want the tests to be of the absolute latest.