http://www.engadget.com/2015/10/06/does-your-iphone-have-a-good-or-bad-a9-cpu/
And now everyone knows why GloFo is making their own 10nm process, Samsung 14nm LPE & LPP process is garbage.Users are conducting tests and reporting the results via forums on Reddit and Mac Rumors which have resulted in the conclusion that the TSMC A9 has approximately 2 hours better battery performance than the Samsung.