The iPhone 5S is all new on the inside, with the most notable change coming in the form of a new A7 processor. The A7 Apple-built ARM CPU will have a native 64-bit kernel, libraries and drivers. The A7 has 2x general purpose registers, 2x floating point registers, over 1 billion transistors and 100 square mm die size. The processor runs 32-bit and 64-bit apps.
Apple says the new processor (A7) is twice as fast as the A6, with a 40x CPU performance bump. Graphics are said to be 56x faster. The A7 chip now has a brand new part called the M7, which is a motion sensor. It works alongside the A7 to continuously monitor motion from the gyroscope, accelerometer, and compass – helpful for new generation of health and fitness apps.
