They are the fifteenth generation of iPhones (succeeding the iPhone 12 and iPhone 12 Mini respectively). The iPhone 13 and iPhone 13 Mini use an Apple-designed A15 Bionic system on a chip. The iPhone 13 and 13 Mini feature a 6-core CPU, 4-core GPU, and 16-core Neural Engine, while the iPhone 13 Pro and 13 Pro Max feature a 5-core GPU.