Microsoft refreshes IE9 preview, boosts speed

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Making good on a promise two months ago, Microsoft today updated its Internet Explorer 9 (IE9) preview, a sneak peek that targets Web developers and others eager to try out the company’s next browser. The second preview is a 15MB download, and can be obtained from Microsoft’s site here.

Internet Explorer 9

Hachamovich claimed that the second IE9 preview renders JavaScript about 20% faster than the March edition, and 36% faster than Mozilla’s Firefox 3.6. Microsoft’s early code, however, still lags behind the leaders — Apple’s Safari, Google’s Chrome and Opera Software’s Opera — in SunSpider benchmark scores. Opera, for instance, was half again as fast as IE9’s Platform Preview 2.

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