Did us iPhone 6 users get the short end of the power stick?

[Kendo]

A4 to A5 - 2X CPU and 9X GPU (yes 9X, that is not a typo)
A5 to A6 - 2X CPU and 2X GPU
A6 to A7 - 2X CPU and 2X GPU
A7 to A8 - 25% CPU and 50% GPU (instead of twice the power like previous chips, we got 25% and 50%)
A8 to A9 - 70% CPU and 90% GPU

In almost all chip upgrades, the power was increased by 100% however the A8 only got a 25 to 50% increase. I know you can argue that the A8 got power efficiency, but does that really mean anything? Every iPhone has pretty much the same battery life.

 

[CEmajr]

Well the 5S was ahead of its time in terms of power so that's probably the main reason. Also every iPhone doesn't have the same battery life. I got a good 2+ more hours of usage out of the iPhone 6 than I did the 5S.