That’s a huge difference that will make for much improved performance when using complex web apps. IE10 bested Chrome by 56ms, but it absolutely destroyed IE9 by 687.2ms. Most impressively, IE10 was the fastest at a mere 127.2ms, give or take 1.5%. Chrome 23 was able to complete it in just 183.2ms, give or take 1.7%. IE9 finished running the performance test in 814.4ms, give or take 0.6%. For this test, the lower the score the better. Using the SunSpider 0.9.1 benchmarking tool from the developers of WebKit, the three browsers are given an overall score depending on how long it took them to execute a suite of synthetic JavaScript benchmarks.
