The A8 Chip is a 64-bit system-on-a-chip designed by Apple Inc. It was first introduced in 2014 and is used in devices like the iPhone 6 and iPhone 6 Plus. The chip features a dual-core CPU and a quad-core GPU, providing improved performance and energy efficiency compared to its predecessor, the A7 Chip. The A8 Chip supports advanced graphics and processing tasks, making it suitable for gaming and high-resolution applications. It also includes the Apple-designed M8 motion coprocessor, which tracks fitness and health data, enhancing the overall user experience in compatible devices.