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# Mach-O Architecture

Constants that describe the CPU types that a bundle’s executable code supports.

## Topics

### Constants

[`NSBundleExecutableArchitectureARM64`](/documentation/Foundation/NSBundleExecutableArchitectureARM64)

The 64-bit ARM architecture.

[`NSBundleExecutableArchitectureI386`](/documentation/Foundation/NSBundleExecutableArchitectureI386)

The 32-bit Intel architecture.

[`NSBundleExecutableArchitectureX86_64`](/documentation/Foundation/NSBundleExecutableArchitectureX86_64)

The 64-bit Intel architecture.

[`NSBundleExecutableArchitecturePPC`](/documentation/Foundation/NSBundleExecutableArchitecturePPC)

The 32-bit PowerPC architecture.

[`NSBundleExecutableArchitecturePPC64`](/documentation/Foundation/NSBundleExecutableArchitecturePPC64)

The 64-bit PowerPC architecture.


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