Apple makes a really big deal about their cores and GPU, as they have every right to (they're pretty great). Quite aside from their keynotes that focus extensively on this, on the product page you learn, right near the top, about the A8 64-bit processor and M8 coprocessor, as if these facts have any relevance to an end user. They're bragging points. Apple talks about their 64-bit advantage ad nauseam.
They absolutely brag about their chip. They boast specs (as they boast "retina" displays and thinness and grams and materials).