The iPhone 13 uses the A15 Bionic processor, Apple's latest chip. The A15 Bionic is faster than the A14 Bionic, with higher performance and efficiency. It uses a 5-nanometer process and has six cores, including four high-efficiency cores for more computing power, two high-performance cores for high-speed processing, and five cores for Gpus for faster graphics processing. In addition, A15 Bionic has an intelligent neural network engine that delivers faster machine learning capabilities. Overall, the A15 Bionic is a high-performance, high-performance chip that delivers excellent performance for the Apple 13.