Apple rolled out a subtle CPU update to its iPad 2 lineup last month, opting for a new 32 nm A5 processor. The update brings an additional hour to an hour and a half of battery life in gaming benchmark tests, and a whopping additional two and a half hours in video playback tests.
The obvious reasons pointed out by Anandtech is the amazing Retina display in the new iPad. That thing is a resource hog.
Here’s the bummer though: you’ll have no idea at checkout which version of the device you’ve managed to purchase. The only way to tell the difference between the two models is to fire up an app like Geekbench and check the version of your iPad. The good news, though, is that version 2,4 of the iPad will eventually replace the 2,1 version if all goes well with the new chipset. The longer you wait, the higher the likelihood that you’ll have the newer model.