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The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
How do I figure out if my Macbok Pro is a 32 or 64 bit system?
MacBook Pro, Mac OS X (10.7.4)
While clicking and holding on your Apple menu, press OPTION and the first entry, normally "About this Mac" will change to "System Profiler." Launch it.
It's opening screen is what we need:
Please post the code indicated by the red arrow in the example.
Hello I need to know if my macbook pro is 64-bit or not.
Model Identifier: MacBookPro5,5
Processor Name: Intel Core 2 Duo
Processor Speed: 2.26 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP55.00AC.B03
cant someone let me know please? thanks!
64 bit.
Anuj Delhi wrote:
What should it be for my config as shown below
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro6,2
Processor Name: Intel Core i5
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MBP61.0057.B0C
SMC Version (system): 1.58f16
Serial Number (system): W80280KDAGV
Hardware UUID: E2D213F0-90D1-5D5D-9BE6-58FB36EF23F3
Sudden Motion Sensor:
State: Enabled
64Bit,
Aashvi wrote:
Model Name: MacBook Air
Model Identifier: MacBookAir5,2
Processor Name: Intel Core i5
Processor Speed: 1.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MBA51.00EF.B02
SMC Version (system): 2.5f7
Serial Number (system): C17K53P4DRVC
Hardware UUID: 8D0BDA4A-E4F6-5245-8ED2-A7B6904AE4A1
Also 64Bit.
How to tell if your Intel-based Mac has a 32-bit or 64-bit processor
How to tell if your Intel-based Mac has a 32-bit or 64-bit processor - Apple Support
For future reference, all new MACs are now 64 bit. All Macs with Processor names like: Intel Core i* , where * is a number are 64bit.
Model Name: MacBook Pro
Model Identifier: MacBookPro8,1
Processor Name: Intel Core i5
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MBP81.0047.B27
SMC Version (system): 1.68f99
Serial Number (system): C1MHFAV3DV13
Hardware UUID: A65B84BE-F6E7-5E89-A401-23C08BAE5587
Sudden Motion Sensor:
State: Enabled
What should it be for my config as shown below
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro6,2
Processor Name: Intel Core i5
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MBP61.0057.B0C
SMC Version (system): 1.58f16
Serial Number (system): W80280KDAGV
Hardware UUID: E2D213F0-90D1-5D5D-9BE6-58FB36EF23F3
Sudden Motion Sensor:
State: Enabled
and what should it be for my config:
Model Name: MacBook Air
Model Identifier: MacBookAir5,2
Processor Name: Intel Core i5
Processor Speed: 1.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MBA51.00EF.B02
SMC Version (system): 2.5f7
Serial Number (system): C17K53P4DRVC
Hardware UUID: 8D0BDA4A-E4F6-5245-8ED2-A7B6904AE4A1
Also, Intel Macs that have the number "2" between "Intel Core" and "Duo" are 64-bit. The earliest MacBook Pros had Intel Core Duo processors (no "2" in the name) and they are 32-bit as other have stated repeatedly.
Here is the information:
http://support.apple.com/kb/HT3696
Ciao.
JonnyBoots26,
http://support.apple.com/kb/ht3696
Since you have an Intel Core 2 Duo processor, your computer is a 64 bit.
Hi s,
It depends exactly which MBP you have. The earliest ones were 32 bit.
Thank you!!!
You can go to http://www.64or32.com to see if your computer is 32 or 64 bit.
How do I know if my Mac Pro is 32 or 64 bit system?
