Apple's chip design is world class, and keep in mind they are coming out with newer, faster, more efficient chips every single year. That's impressive enough for a specialized processor company like Intel but for Apple to do it is incredible. And they make these chips exclusively for their own products. Imagine the money they could make if they sold Apple designed chips to other phone manufacturers. Even older processors like the A7 or A8 would be improvements in a lot of the non-Apple hardware out there.