Updated iPad 2 with 32nm A5 Brings 15-30% Better Battery Life
It appears that Apple has tweaked the iPad 2 and fitted it with a smaller 32 nano meter A5 chip. The revised iPad 2 now has an identifier of iPad2,4 which was first seen in the beta of iOS 5.1 in November. The new iPad has a 45nm A5X chip.
Anandtech received this new revised version of the iPad 2 and ran some benchmarking test. They found that the new 32nm chip improves battery life 15-30% over the previous iPad 2 16GB Wi-Fi model.
Anandtech measured a 15% increase in the web browsing battery life, a nearly 30% increase in gaming battery life and an 18% increase in video playback battery life. Although Apple hasn’t revised its battery life specs, the iPad 2,4 definitely lasts longer on a single charge than the original iPad 2.
There is no way to tell from the outside of the box if you get a revised iPad 2 for the $399 price. You have to physically turn on the iPad 2 to check.
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