what is the difference between ipad 2nd generation and 4th generation?
As confirmed by the third-party Geekbench benchmark, the iPad 2 and iPad mini are powered by dual core 1 GHz Apple A5 processors with a single core graphics processor and have 512 MB of RAM, whereas the iPad 4th Gen is powered by the much faster dual core 1.4 GHz Apple A6X processor with quad core graphics and 1 GB of ...