Apple A19

The Apple A19 is a system-on-chip (SoC), meaning that the CPU, GPU, memory controller, and other components are integrated on a single silicon die. It was designed by Apple and announced in September 2025, accompanying that year's iPhone models.

The A19 is part of Apple's strategy of designing its own silicon rather than licensing designs from others. Apple handles the design while Taiwan-based TSMC performs fabrication. Two variants exist within the family: the A19 and A19 Pro, which differ in the number and performance of their components.

Architecture

The A19 uses the ARM architecture, the instruction set that Apple has employed in its chips since earlier A-series processors. The CPU features two types of cores: high-performance cores for demanding tasks and efficiency cores for routine operations. It also includes a GPU for graphics and a Neural Engine for machine learning computation.

Manufacturing process

The A19 was manufactured using a process technology near 3 nanometers (nm). Here, nanometer is a marketing term describing a generation of manufacturing technology rather than a precise physical measurement. Smaller processes like this typically deliver higher transistor density and lower power consumption compared to earlier generations.

Use

The A19 family was integrated into 2025 iPhone models. The standard A19 serves base models, while the A19 Pro is used in higher-end variants. The chip runs iOS, supporting photography, gaming graphics, and on-device machine learning features.