Apple's new M5 Pro and M5 Max chips introduce a third core type, creating confusion with Apple's renaming of core categories. The M5 chips now feature efficiency, performance, and super cores, with the previous performance cores now called super cores.

The change aims to optimize the balance between power and battery life. The base M5 chip remains unchanged with efficiency and super cores, while the M5 Pro and M5 Max variants use performance cores for balanced tasks and super cores for demanding workloads.

John Gruber clarified the core configurations after speaking with Apple, providing a breakdown of core counts across different M5 models. The new architecture maintains Apple's focus on delivering both performance and efficiency, though the naming convention has left some users puzzled about the actual differences between core types.