With a new a8x chip built on second generation 64 bit desktop class architecture ipad air 2 is the fastest most powerful ipad ever compared with the a7 chip in the previous ipad air the new a8x chip delivers 40 percent faster cpu performance with this kind of performance you might expect a compromise or two like a bigger form factor or a shorter battery life but ipad air 2 is both thinner and lighter than the previous ipad air and thanks in part to the m8 motion coprocessor it still ha