Someone recently benchmarked the updated speed of the iPad 2 as it relates to JavaScript and it blew it out of the water:
The good news for anyone thinking of buying the iPad 2 is that it did incredibly well in the test, outperforming all the rivals we have in the building to compare with it. That includes the original iPad, which at first was nearly 4x slower to get through the test than the new version. The iPad 2 has a new, dual-core processor inside it which, at first glance, seems responsible for all of this extra speed.
Incidentally, when you compare the iPad to the other devices we tested, Android phones and tablets don’t come out particularly well. The Galaxy Tab is more than 3x slower than the iPad 2 in this test, and about 2x slower than the original iPad with the new software. The Google Nexus S smart phone doesn’t fare too well either, at nearly 3x slower than the iPad 2.
There’s really good news for iPhone 4 owners out there: when it arrives, iOS 4.3 will deliver a 2.5x speed increase in this test.
Wow.
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