“New iPad 2?” you might ask. Yes, when Apple released the new iPad with A5X processor and Retina display, it also released the iPad 2,4 which is mostly the same as the iPad 2 that Apple has been selling for over a year. However, in the iPad 2,4, Apple traded out a 45nm A5 processor for a new 32nm A5. It is the most efficient processor Apple makes and is likely to be the same 32nm die size as the upcoming iPhone’s processor. (The 1080P AppleTV also uses a 32nm A5 processor but it is limited to single core)
Anand got the iPad 2,4 from a Best Buy, noting that most Apple Stores were still selling the older 45nm version. For battery life, the new iPad 2,4 saw anywhere from 1.6 hours of additional time in web browsing to almost 3 extra hours in some graphics and 3D video intensive tests. Those are significant gains.
As you can see below, the processor is much smaller in the new iPad 2,4. It will be interesting to see if Apple updates its iPad 2 specs in the coming weeks and months to reflect the new battery life reality on its iPad 2s.