IE9 beta: first tests and opinions

Internet Explorer has just been released in its first beta stage, but we already have some interesting test results compared with Google Chrome 6.0.472.55, Mozilla Firefox 3.6.9, Opera 10.62 and Safari 5.0 (7533.16). All the Javascript engine benchmarks, have been done on a Core 2 Duo T7300, 2GB RAM DDR2 computer running with Windows 7 64-bit.

Let’s take a look at the benchmark results.


The first test tries the new IE9 javascript engine “Chakra” with the SunSpider benchmark created by the Webkit team. Results are good, in fact we can see some progress, compared to IE8; and the final time 898ms is better than Firefox 3.6. The best browser in this test is Opera (381ms), followed by Chrome (423ms) and Safari 5 (451ms).

Here we go with the second test:


In this second test we are evaluating the flying images test proposed by Microsoft. The most important value to consider is the frames per second, and Internet Explorer 9 beta has obtained the best result of 60 fps. The other browsers are Safari 5 with 5 fps (the worst one), Firefox (9 fps), Opera (21 fps) and, Chrome (23 fps). Same results obtained with 100 and 256 images.

Finally, we’re running the well-known Acid3 test.


This test measures how well a browser can load elements like Document Object Model (DOM) and JavaScript. Internet Explorer 9 has still the 95/100 value of the Tech Preview 4, better than Firefox with 94/100, but less than Opera, Chrome and Safari with 100/100.

Concluding, even if IE9 is still a step behind Chrome or Firefox 4 we can really appreciate these results, considering that this is still a beta. There might be more improvements and progress in IE9’s final version. What do you think?

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