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How to tell if your Intel-based Mac has a 32-bit or 64-bit processor

Learn how to find out if you have a 32-bit or 64-bit Intel-based Mac.

  1. Hold down the Option key and choose System Information or System Profiler from the Apple menu.

  2. Select the Hardware section of the window that appears.

  3. Locate the Processor Name.

  4. Compare your Processor Name to information below to determine whether your Mac has a 32-bit or 64-bit processor.

Processor Name

32- or 64-bit

Intel Core Solo

32 bit

Intel Core Duo

32 bit

Intel Core 2 Duo

64 bit

Intel Quad-Core Xeon

64 bit

Dual-Core Intel Xeon

64 bit

Quad-Core Intel Xeon

64 bit

Core i3

64 bit

Core i5

64 bit

Core i7

64 bit

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