Chakra is a JScript engine developed by Microsoft for its upcoming Internet Explorer 9 (IE9) web browser. A distinctive feature of the engine is that it compiles scripts on a separate CPU core, parallel to the web browser.The engine will also be able to access the computer's graphics card processor (GPU), in particular for 3D graphics and video.Microsoft's development of the engine was in direct response to faster competing browsers, on which IE8 was lagging behind in terms of JavaScript processing speed.
SunSpider tests performed on November 18, 2009 showed the PDC version of IE9 executing scripts much faster than IE8, but slower than respectively Firefox 3.6, Chrome 4, and Webkit Nightly. The same test performed on March 15, 2010 showed the first IE9 Platform Preview (using the then-current version of Chakra) to be faster than Firefox (with SpiderMonkey), but slower than respectively Safari (with SquirrelFish Extreme), Chrome (with V8), and Opera (with Carakan). The same test performed on November 16, 2010 showed the seventh IE9 Platform Preview (using the current version of Chakra) to be faster than Safari, Firefox (with TraceMonkey),
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