In anticipation of IE9, Betanews has been developing a radically improved set of performance tests to complement (and, in a few categories, replace) those we've used in recent months. Our objective is to determine not just how much faster IE9 is, but how much better and more efficient it will be, in computing data, in rendering on-screen objects, and in adapting to varying workloads.

Betanews estimates that the IE9 chassis on Windows 7 offers 9.32 times better raw computational performance than IE8 on Windows 7, on the same machine. That's a welcome number due in large part to vastly improved scores in the widely respected SunSpider battery, as well as high scores in a new set of variable-workload computational tests produced by Betanews. Specifically on the SunSpider, the IE9 preview scored a 44.77 on Betanews' relative performance index, compared to 5.59 for IE8. Our index is based on cumulative relative performance in each category of the test battery, compared against the score posted by an old, slow Web browser: IE7 on Vista SP2. This means, yes, IE9 (thus far) offers almost 45 times the computational speed of IE7 on the older operating system -- easily the single largest surge we've seen between generations.

A recent dev build of Google Chrome 5 on Windows 7 scored a 69.83 on that same SunSpider index, followed closely by the first stable version of Opera 10.5 with 68.64.

As Microsoft embraces HTML 5, it's also managing to eke out some marginal speed gains in the rendering department, although it must be noted that the IE9 chassis is running in an almost feature-less window with very minimal overhead. As of now, the IE9 preview offers 23% better rendering performance (CSS, DHTML, support for the Canvas element in HTML 5) than IE8.

mmmilan: Skinuo, probao i ne vidim nista novo, revolucionarno.
Na stranicama koje imaju dosta flesa se ne ponasa nista bolje od ff ili kroma.

Jel se zna kad ce izaci oficijalna verzija devetke?

mmmilan: ..Jel se zna kad ce izaci oficijalna verzija devetke?

The first release of Internet Explorer 9 Platform Preview is version 1.9.7.7.45.6019, and Microsoft intends to release new version of Platform Preview releases every eight weeks (two months), until IE9 Beta, which is then a full browser is officially.

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IE 9 Platform Preview - Testing Center

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