Here are the chip details for iPhone 11 and iPhone 11 Pro Max:

iPhone 11 Chip: A13 Bionic Chip ID: T8030

iPhone 11 Pro Max Chip: A13 Bionic Chip ID: T8030

Both of these devices have the same A13 Bionic chip, which provides much better performance and energy efficiency compared to the A12. Let me know if you need more details!