| October 7, 2010 10:00 PM PDT | |
MacCPUID is a developer tool used for displaying information collected from the microprocessor via the CPUID instruction. The CPUID instruction returns information in the general purpose registers such as manufacturer identification, a processor's family, model, and stepping numbers, supported features (e.g. SSE, SSE2), cache information, and many others.
Download MacCPUID [DMG 2.6 MB]
For more complete information about compiler optimizations, see our Optimization Notice.
Comments (11) 
| July 15, 2008 5:05 AM PDT
podarok |
sse4 not detected!!!! unsupported 45nm CPUs |
| August 14, 2009 9:10 AM PDT
Justin Landon | Please try download the 10MB .DMG linked to on this page. It should have the updates you're looking for. |
| February 9, 2010 8:54 AM PST
Insfilo | this is great, downloading the 10MB version, thanks :) |
| May 29, 2010 11:25 AM PDT
Lars Baumstark | Very detailed information about the system processor and even better explanations on all the data. |
| June 4, 2010 4:21 AM PDT
Joe Jackson | Interesting, I have a macbook pro with an identical processor as my acer aspire (core i5 430m 2.26GHz) CPUID/CPU-Z on Windows 7 shows 2 cores 2 threads per core with 4 logical CPUs on my macbook, using this tool, I see 8 cores 2 threads per core at 16 logical CPUs... How can this be? |
| June 9, 2010 11:04 AM PDT
Kit Chung (Intel)
| Hi. We have identified the issue and we are working on it. Thanks for reporting the issue. |
| June 16, 2010 2:57 PM PDT
jaschoon | Can this tool determine whether VT-X is enabled? Is there another Intel tool that can determine this? |
| August 15, 2010 8:58 AM PDT
desaputra | worked on iMac 8.1 (early 2008) |
| February 20, 2011 12:44 AM PST
Alexey |
Hello! for some reason it did not work on MacOS 10.5.8, both on xServer and MacPro. OS Version: Mac OS X Server 10.5.8 (9L34) Report Version: 6 I wonder if there is a newer version of the tool? |
| January 18, 2012 5:09 PM PST
tildeleb |
1. How can VT-x and VT-d not be in the supported feature list? 2. There is no version information in the about box, only 2.0.0 in the lower left corner of the main window. 3. How about tool tips describing what each feature does? |
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Author
Kit Chung (Intel)
|


Douglas W. Goodall
For use on my Mac Pro 8-core 3.0 GHz Xeon
16GB-Ram 1.8TB-HD