A teardown of the Apple A8 processor inside the iPhone 6 and iPhone 6 Plus reveals that Apple has indeed moved away from Samsung, fabbing their second-generation 64-bit system-on-a-chip on TMC's new 20nm process. That's what lets them get 2 billion transistors onto a package 15% smaller than the one that came before. They've also gone with a PowerVR GX6450 GPU and crammed 4 MB of L3 cache inside the application processor. All this, and more, according to Chipworks and expanded upon by AnandTech:
All of this lines up with what Apple announced at the iPhone event earlier this month. Where the Apple A7 was about power and performance, the Apple A8 is about efficiency and battery life.
If you've got an iPhone 6 and iPhone 6 Plus, how's the Apple A8 been working for you?
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