iPad Air's A7 chip is identical to the iPhone's, just faster

Slightly higher clock speeds and more thermal headroom explain the differences.

Apple announces iPad Air, iPad mini with Retina display

A7: How Apple's custom 64-bit silicon embarrassed the industry

2013 Ars Technica

The iPad Air 2 and what Apple needs to deliver

Apple iPad Air review: This older tablet is still a winner - CNET

Review: iPad Air - Neowin

Apple iPad Air 2 review

Tech Ars Technica

Apple iPad Air 2 - External Reviews

Teardown: Apple iPad Air packs faster A7 - EDN

Apple iPad Air review

Ars Technica

iPad Mini 3 still only has the A7, only major difference is Touch