The second-generation 64-bit chip powering the iPhone 6 and iPhone 6 Plus that Apple calls the A8 is confirmed by Chipworks to have been fabricated by TSMC (Taiwan Semiconductor Manufacturing Company) as we told you The Wall Street Journal reported in July.
The change to TSMC from Samsung for fabricating the A-series chip powering the iOS device is significant as Apple has previously relied on Samsung for the job.
Apple’s new 4.7-inch iPhone 6 and 5.5-inch iPhone 6 Plus are clearly targeted to compete with the Samsung Galaxy and Samsung Galaxy Note Android handsets as Apple moved away from the 4-inch display on the iPhone 5, iPhone 5c, and iPhone 5s of previous generations.
The inspection of the A8 chip found in both new iPhone models is also confirmed to use a 20 nm process as The Journal’s July report said to expect. That compares to the 28 nm processor of the A7 chip found in the iPhone 5s, iPad Air, and iPad mini with Retina display (fabricated by Samsung) making the new chip both more power and energy efficient. During the iPhone launch keynote, Apple SVP of MArketing Phil Schiller said that Apple was able to fit the @B transistors of the A8 in less space than the 1B transistors in the A7.