Which partition scheme is the default for Intel-based Macs?

The default partition scheme for Intel-based Macs is the GUID (Globally Unique Identifier) scheme. This scheme is part of the EFI (Extensible Firmware Interface) standard, which has been adopted by Intel-based Macs since their transition from PowerPC architecture.

GUID offers several advantages that make it particularly suitable for modern computing environments. It supports larger disk sizes and a greater number of partitions compared to the older APM (Apple Partition Map), which was used for PowerPC Macs. Additionally, the GUID scheme is essential for utilizing advanced features like hybrid drives, which incorporate SSD and HDD technology.

Furthermore, the GUID scheme allows for better compatibility with features like Time Machine and APFS (Apple File System), which maximizes performance and reliability on macOS. This compatibility is crucial for maintaining the integrity and efficiency of data management on Intel-based Macs, making GUID the preferred choice for users and technicians alike.