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.
- Choose About This Mac from the Apple () menu in the upper-left menu bar, then click More Info.
- Open the Hardware section.
- Locate the Processor Name.
- 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 |
Last Modified: May 3, 2011
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