Flash, Java, And SilverLight
GUIMark Flash
This is the Flash version of GUIMark; we used the Flex 3 version of this benchmark. Five runs were recorded, the average of which became our final score.

Opera became very slow and unresponsive when opening GUIMark Flash. Minimizing and then maximizing the window seemed to fix this. This did not occur in all iterations; the third fifth run went smoothly.
Again, despite glitchy behavior, this test shows Opera on top. It's followed by Firefox, Safari, and Internet Explorer with nearly identical scores, and Chrome trailing behind.
GUIMark Java
GUIMark tests various UI rendering technologies, including Java. We ran the test five times and used the average to settle on our final scores. This was version Java 5 Swing of GUIMark Java.

The scores in this test are all very close, with Opera showing the only substantial lead. Second place finisher Firefox only beats out the third place Safari by one-fifth of a frame per second.
Bubblemark SilverLight
Bubblemark was used to test how each browser handled SilverLight content. We ran the SilverLight 2.0 (CLR) version of Bubblemark's SilverLight test and set it to use 32 balls. We ran five iterations of the test, the average of which became our final score.

Firefox and Internet Explorer both tie for first place. Opera takes a decent third, while the Webkit duo of Safari and Chrome pull up the rear.
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cool, good test!

still perfectly happy inside the firefox world, but worth keepin' tabs on chrome's rise
cheers,
bollos
p.s. stuff & nonsense: http://eupeople.net/forum
Would definitely like to see which browser performs best on Linux, as I am planning to switch to that OS for day to dat use
I agree
I agree
I tried chrome, but i really can't say goodbye to my firefox addons

I would also like to see a linux test, would also be interesting to compare it with the windows scores
Speed isn't everything... I stick with Firefox because I can tweak it to my liking. A few milliseconds worth of page loading times won't be enough to convince me to switch browsers.
Very good article.
It proves what I always knew, IE is pants.
I'm sticking with Opera, at least for the time being.
yeah, where firefox does lose out it's not by much, i know how to use it, i like it's feature set, a few milliseconds here or there isn't enough to get me to switch
I like chrome, but it runs like a pig on my work machine (installs itself in c:\users\appdata. The retard) And as stated, I don't know what I'd do without my FF add-ons. fire.fm, greasemonkey, echofon, ABP, webdev toolbar. All indespensible. As stated in the article though, unquantifiable (assuming that's a word. Sounds OK)
Interesting comparison, thank you.
I have a slight issue with the memory usage analysis though. I don't necessarily see using more RAM as being a bad thing necessarily. Even on a system with only 1GB of memory, we're talking about the difference between 2% and 5% usage of all available memory between the lowest (~20 MB)and highest (~50 MB)usage. I say let the browsers do what they gotta do. Memory usage will only impair system performance when it's in short supply. People with 2 - 4 GB systems (most of us) wont miss it.
The load times look fishy. Compare the 1, 5 and 8 tab times by browser:
Chrome 1.37 - 13.94 - 10.40
Firefox 4.21 - 16.99 - 11.34
IE 7.89 - 9.56 - 17.73
Opera 3.01 - 8.01 - 8.31
Safari 10.31 - 21.69 - 10.83
Why is it Chrome, Firefox and Safari could load 8 tabs faster than 5 if the 5 were a subset of the 8?
Also, there's no indication of the range of times for each browser...
aje21 is spot on, it would seem other factors are at play here (site load, bandwidth usage, time of day etc) as it makes no sense whatsoever that chrome, safari and FF are slower for the lesser test of 5 tabs, but are faster with the same 5 tabs plus 3 more.
I also want to know why we are using an old dual core proc and a handheld STOPWATCH........thought this was cutting edge tech site!!!!
To be honest these days any of those browsers are perfectly good to use. I use Chrome, Firefox and IE8 all the time and don't really have fault with any of them.
Memory usage and page load times are the most important things to me in regard of web browsing and in both categories firefox wins, which is the browser I use, so that tells me that at least for me FIREFOX RUUULLZZZZ!!!
As weefatbob said, I was expecting some rationale/logic for the hardware used.
The last time I did a sunspider test (on firefox 3.6) I got ~780ms, which is faster than any of the results here, I wonder if that is due to the fact that I have a faster, more modern processor or faster RAM; hardware related.
Why change the test to 8 tabs just because IE is too dumb to let you open more than 8 tabs?
firefox is the nicest to use by a long way - chrome doesn't even have an ad blocker.
chrome has plug-ins now, adblockers, xmarks sync and most of the other popular firefox plugins have been converted to it already.
chrome does not use as much ram as the ram test suggested, as it shares ram considerably between processes (the shared ram gets counted multiple times by looking in process manager). It was explained in detail in an official chrome dev blog.
chrome also wins on security - it was the only browser not hacked in the 2009 PWN2OWN hacking contest.
...and even with those errors and omissions, it still won.
Ironic to see that the winning web browser isn't able to show this very artickly correctly. When clicking the pull down menu to change to another side, parts of the menu disappears under other content on the page and its not possible to operate the scroll bar. Still not considering to move away from Chrome though
I've been using Chrome for months now, I love it. It's even better now it supports the plug-ins (extensions). I've tried all the reviewed browsers and benchmarks etc aside, none give the fluidity and response of Chrome.
As far as RAM usage goes, with 8GB RAM I don't really mind if it uses more since it's the user experience that matters.
My version is showing as 4.0.249.89 not 4.0.249.78 as the article suggests is the latest version as of 3 days ago? (I've not updated recently)