Serious questions are being raised about the A5 processor in the new Apple iPad 2 with suggestions emerging that it is not 1Ghz as claimed.According to Engadget and iFixit,  AnandTech and IOS experts claim the dual-core ARM chip is dynamically clocked around 900MHz, in an effort to reduce power use. On the positive side the iPad 2  has a dual-core PowerVR SGX543MP2 GPU that “mops the floor with both the original iPad and the Motorola Xoom”

Engadget said that although the “new chip didn’t quite demonstrate 9X the graphical prowess of its predecessor, it rendered 57.6 frames per second in a GLBenchmark test where the (admittedly higher-res) Tegra 2 tablet managed only 26.7fps, and last year’s iPad pulled only 17.6fps. That’s some serious Tai Chi”.