Apple’s Safari 5 takes speed prize on Mac, Windows

Apple’s new Safari 5 browser is the fastest browser on both Windows and Mac OS X, JavaScript benchmark tests show.

…faster than Opera 10.53, and rendered JavaScript about 2.5 times faster than Firefox 3.6.4.

Microsoft’s historically sluggish Internet Explorer 8 (IE8) took 12 times longer to run the SunSpider benchmarks than Safari 5.

Apple’s claim that Safari is “the world’s fastest web browser” may be true today, but previous claims haven’t stood up to testing. Opera, for example, grabbed the top spot in February, surging past Chrome and Safari, the former No. 1 and No. 2 browsers on Windows, and didn’t relinquish it until this month.

The rankings are open to debate. JavaScript performance results can vary significantly, depending on the hardware used to test and the benchmark suite used. Several other technology sites and blogs, for example, have said that their benchmarks show Safari 5 lagging behind Chrome on Windows. Some have gone as far as to call Apple’s speed claim “a flat out lie.”

Although Safari may own the speed prize — by Computerworld’s testing — it not the world’s most popular browser. According to…

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Apple’s Safari 5 takes speed prize on Mac, Windows

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