Microsoft just released another Platform Preview of Internet Explorer. IE9 Platform Preview 7 is very much focused on real-world performance improvements using Full Hardware Acceleration.
In addition Charka, Microsoft’s JavaScript engine brings lots of performance improvements and Internet Explorer 9 has become the leading performing browser in WebKit SunSpider now. Internet Explorer 9 has increased JavaScript performance by 345% according to WebKit SunSpider since Microsoft demonstrated Chakra at PDC in 2009.

Chakra Benchmark Results
Microsoft has also updated the IE9 test Drive website by adding following new Speed Demos for early adopters to try.

You can download IE9 Platform Preview 7 from testdrive.com.

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