The beta version of Opera's latest browser, Opera 10.5, is currently the world's fastest browser, benchmark tests show.
Released last week and powered by a new JavaScript engine, Opera 10.5 beat all comers to easily take the top speed spot.
According to tests run by PC Advisor's sister title Computerworld, Opera 10.5 was nearly 15 percent faster than Safari for Windows and almost 20 percent faster than Google Chrome, the previous number one and number two browsers.
Opera's preview was more than twice as fast as Mozilla's Firefox 3.6, over eight times faster than Opera 10.10, and 10 times faster than Microsoft 's Internet Explorer 8 (IE8).
Opera has been an also-ran in JavaScript speed tests for almost two years, ever since developers working on WebKit, the open-source browser engine that powers Apple's Safari, began bragging about massive JavaScript performance increases.
Since then Mozilla built a new JavaScript engine for Firefox, and Google raised the speed ante with Chrome.
The only browser Opera regularly beat in JavaScript races was the even more sluggish IE8.
Computerworld ran the SunSpider JavaScript benchmark suite in Windows XP Service Pack 3 (SP3) three times for each browser, then averaged the scores to arrive at the final rankings.
Opera 10.5 features a new JavaScript rendering engine, dubbed Carakan, and boasts a new vector graphics library called Vega that handles all graphics rendering in the browser.
Opera claims that Vega renders graphics about three times faster than the library utilised by Opera 10.10, the company's current production browser.
Other additions to the beta include a revamped interface that reduces the space allotted to menus, support for Windows 7 's Aero Peek and Jump List features, an address bar that brings the history and bookmark search of Firefox's Awesomebar to Opera, and the ability to mark any tab as private so there's no record kept of sites visited or actions taken within that tab.
Opera 10.5's beta is available for Windows only, but alpha builds of the Mac and Linux versions can be downloaded from the Opera Desktop Team blog.
The Norwegian browser maker has not set a ship date for the final of 10.5, but has said that the Windows version will beat the others to that milestone as well.
About the time that the final code for Windows is released, Opera will have the Mac and Linux betas ready.
Opera 10.5 beta can be downloaded from the company's website.





Comments
Cyteck said: This experience of mine with opera proves the old adage that NOT ALL software versions of the same product are equal And that it means just because there is a new version users should NOT assume its better than the present or previous versionMORAL OF THIS STORY- New is not always better
Cyteck said: YES OK so now Opera can for a few days or few weeks technically lay claim to be the fastest web browser I had a perfectly good installation of Opera 1010 and upgraded to 1050 but the way the latest version handles amp renders images was dreadful So I removed 1050 and went back to 1010 which is a much better version IMO Look speed is NOT everything I think users amp companies have become obsessed with speed but other aspects of browser functionality seem to have suffered as a result However Ill give opera their due they are definitely trying hard to push there browser development forwards amp any glitches in 1050 will probably get ironed out in the next couple of versions
John S said: You need to take night courses to finish your elementary school education if you cant figure out how to use a web browser
Mike J said: Ive tried Opera three times amp always found it to be a nuisance You need to take a night course to figure it outFirefox must be configured in aboutconfig for optimal speed