I have one of the core i7 MacBooks, and I'm wondering if there is a way to see when Turbo Boost is active (other than the fact that the laptop gets really hot and the fan kicks on).

I use iStat to monitor CPU activity, but that doesn't show Turbo Boost activity.


3 Answers 3


there's 2 utilities that could provide that info,

Hope this helps.


  • The MacCPUID always shows that my CPU is clocked at 2.3 GHZ. But in fact it should change from time to time and go from 1.8GHZ-2.8GHz. Not really helpful.
    – gentmatt
    Commented Dec 28, 2012 at 12:38

Check out the Intel Power Gadget. It provides info about the processor frequency in GHz and Processor Power in W.

screen shot


with a mac pro13" 2013 retina (2.4GHz, 2.9GHz turbo boost) this works and I can clearly see turbo boost kicking in with very tight numerical code and taking the cpu up to 2.88GHz. With this code I am getting ~ 10.22Gflops from a single core using SSE (peak would be 11.6Gflops at 2.9GHz)

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