Download MacCPUID

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 V3.0:

For more complete information about compiler optimizations, see our Optimization Notice.
File maccpuid-3.0.dmg2.5 MB


jaschoon's picture

Can this tool determine whether VT-X is enabled? Is there another Intel tool that can determine this?

Kit Chung (Intel)'s picture

Hi. We have identified the issue and we are working on it. Thanks for reporting the issue.

anonymous's picture

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?

anonymous's picture

Very detailed information about the system processor and even better explanations on all the data.

anonymous's picture

this is great, downloading the 10MB version, thanks :)

anonymous's picture

Please try download the 10MB .DMG linked to on this page. It should have the updates you're looking for.

anonymous's picture

sse4 not detected!!!!
unsupported 45nm CPUs

anonymous's picture

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


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