Guess what, Apple has secretly upgraded the old iPad 2. It has a new A5 chip built upon a 32 nanometer process. Basically, the benchmark of new stocks of iPad 2 is just like the old one. However, they are having better battery life.
You can check out the complete battery test report at here. For those who don’t care about the retina display and new A5X chip, it looks like the iPad 2 is a little bit more attractive.