10 nanometers! Apple's a11 processor uses 10nm technology. The A11 processor is a processor chip independently developed by Apple Inc., which adopts a 6-core design, consisting of two high-performance cores code-named Monsoon and four low-power cores code-named Mistral. Since then, Apple's A11X processor has used 7nm technology. The iPhone8, iPhone8 Plus, and iPhone X all feature A11 processors, not Apple's newer A11X processor.