Intel TurboStat Can Now Read CPU Temp, Wattage
Written by Michael Larabel in Intel on 18 December 2012 at 05:46 AM EST. Add A Comment
Intel's TurboStat utility that's part of the Linux kernel is now capable of reading the wattage and temperature for modern Intel processors.

The Turbostat utility with the Linux 3.8 kernel will be able to read CPU temperatures for hardware that has either a Digital Thermal Sensor (DTS) or Package Thermal Monitor (PTM) hardware.

The ability to read the CPU Wattage is for CPUs from Sandy Bridge and newer that support Run-Time-Average-Power-Limiting. The RAPL feature mandates hardware energy counters and power control MSRs. These RAPL model specific registers expose system power monitoring in the form of being able to read per-core power readings as well as for the entire package/CPU. Some CPUs also expose the current Wattage of the GPU core as well. Last but not least, Intel Sandy/Ivy Bridge server processors also show the DRAM DIMM Wattage through these Intel RAPL MSRs.

The power tools update for the Linux 3.8 kernel that's maintained by Len Brown of Intel's Open-Source Technology Center can be found on the kernel mailing list.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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