How to check whether your new iPhone 6s / 6s Plus comes with Samsung or TSMC-made Apple A9

How do you check whether your iPhone 6s has a Samsung or TSMC chip?

But did you know that - unlike before - this time, the Apple A9 is not one chip. With the transition to a new and more efficient manufacturing method, Apple had to double source the Apple A9 from Samsung and TSMC. And since the actual manufacturing technology at the two companies differ - both use FinFETs, but Samsung makes its chips on a 14nm process, while TSMC uses a 16nm manufacturing node. In fact, while the Samsung-made Apple A9 occupies a die surface of 96mm2, the one made by TSMC is slightly larger, at 104.5mm2. We have also seen that there is a difference in the actual performance of the two.