Intel® Power Gadget is a software-based power usage monitoring tool enabled for Intel® Core™ processors (from 2nd Generation up to 10th Generation Intel® Core™ processors). Intel® Atom™ processors are not supported. It is supported on Windows* and macOS* and includes an application, driver, and libraries to monitor and estimate real-time processor package power information in watts using the energy counters in the processor. With this release, we are providing functionality to evaluate power information on various platforms including notebooks, desktops and servers. Windows 7* and 32-bit versions of the Intel® Power Gadget for Windows* has ceased development from 3.0.7. Starting with version 3.5 and going forward, only the 64-bit version and Windows 8* will be supported.
Traditional methods to estimate power/energy usage of the processor has always been a cumbersome task that included special purpose tools or instrumentation on the platform along with third party equipment. The motivation for the tool was to assist end-users, ISV’s, OEM’s, developers, and others interested in a more precise estimation of power from a software level without any H/W instrumentation.
In version 3.0 there are additional features that include estimation of power on multi-socket systems as well as externally callable APIs to extract power information within sections of code. The multi-socket support essentially evaluates the Energy MSR on a per-socket basis and provides an estimate of power draw per socket. The API layer is a set of libraries and dlls that can be called and offers the flexibility to build the tool within code sections of an application. Latest release also includes support for Windows 10*.
Intel® Power Gadget 3.5 consists of the following components. Set of driver and libraries which access and post process the processor energy counter to calculate the power usage in Watts, temperate in Celsius and frequency in GHz (default install directory will be ~Program FilesIntelPower Gadget 3.5). A command line version of the tool (PowerLog3.0.exe) is also included
On recent macOS versions, after installation users need to explicitly allow the Power Gadget driver to load:
On macOS Catalina (10.15), users may need to perform additional steps to enable the Power Gadget driver to automatically load (this is due to a bug in macOS).
sudo touch /Library/Extensions
Common use of Intel® Power Gadget is to monitor energy usage of the processor
In order to start and stop the logging in a script, first launch the GUI as usual.
The parameters for the log are based on the options set in the GUI.
PowerLog3.0.exe is the command line version of Intel® Power Gadget in logging power usage
PowerLog3.0.exe [-resolution <msec>] –duration <sec> [-verbose] [-file <logfile>]
PowerLog3.0.exe [-resolution <msec>] [-file <logfile>] [-verbose] –cmd <command>
Logfile will include the elapsed timed, package power limit, processor frequency, GT frequency, processor temperature, average and cumulative power of the processor
Only works on 2nd Generation Intel® Core™ processor family or newer. Atom processors not yet supported.
Use only 32-bit installer for 32-bit OS and 64-bit installer for 64-bit OS
Application may hang after running for a long period of time (just close and restart application)
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
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Intel® Power Gadget also provides a C/C++ Application Programming Interface (API) for accessing this power and frequency data in your program; the API is supported on Windows and Mac OS X. For more information on the API's, see:
For Windows Using the Intel® Power Gadget API on Windows
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