Apple is curiously reticent about some of the technical details of the products it offers, so it took a third-party deconstructing an Apple A7 processor to reveal all its specs.
This 64-bit chip debuted last week in the iPhone 5S, and will almost certainly be at the heart of the much-rumored iPad 5.
According to iFixit and Chipworks, the A7 is being produced by Samsung using the same 28nm process that goes into that company’s Exynos processors used in many tablets and smartphones.
The distance between each of the billion+ transistors on the 102 mm2 die is 114-nanometers, down from the 123-nanometer gate-pitch of the Apple A6. “This seemingly small change equates to having the same computing power, but in 77% of the original area. And given that the A7 processor is larger in area than the A6, that means even more processing power,” according to iFixit.
Benchmark tests have confirmed Apple’s promise that its latest processor offers twice the performance of its predecessor. They have also shown that the A7 has dual 1.3GHz cores, and includes a quad-core IMG PowerVR G6430 graphics chip.