Opera 10.5 pre-alpha goes Chrome hunting

From CNET News.com: The latest Opera browser preview version may not be entirely stable, but it's definitely got its jetpack strapped on. Opera 10.5 pre-alpha, for Windows and Mac, is the first browser that's not powered by Webkit to approach JavaScript rendering speeds previously reached only by Chrome and Safari.

In empirical testing done on an HP desktop running an Intel Core 2 Q6600 at 2.66GHz with 4GB of RAM and Windows 7 32-bit, the pre-alpha scored 435.6 milliseconds in the SunSpider JavaScript benchmark. By contrast, Google Chrome 4.0.266.0, the most recent development build, notched 510.4 ms. The current stable build of Opera was more than 7.5 times slower, at 3284.4 ms.

Opera attributes this dramatic improvement to the new Carakan JavaScript engine, which they have designed from scratch to replace the Futhark engine in the stable build. Opera 10.5 also includes improvements to the Presto layout engine, and a new graphics library called Vega.

Other improvements noticeable in the pre-alpha include changing the URL address bar to include the same style of predictive smart search that Firefox and Chrome have, and the search and address bars now both remember searches, support deleting specific items, and have redesigned layouts.

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