The Power Efficiency Between Ubuntu 19.04, Clear Linux & openSUSE Tumbleweed With CompuLab's Airtop 3

Written by Michael Larabel in Operating Systems on 25 September 2019. Page 4 of 4. 29 Comments

For the most part it was a cross-distribution battle with a similar outcome to our other recent comparisons.

In the end, Clear Linux came out in front 58% of the time followed by openSUSE Tumbleweed with wins 22% of the time.

Clear Linux and openSUSE Tumbleweed did see roughly ~10 Watt higher power consumption over Ubuntu 19.04 and higher peak power consumption too. The minimum power draw of this particular system was comparable between Ubuntu and Clear Linux but about five Watts higher with openSUSE Tumbleweed.

The higher power consumption did translate to slightly higher average CPU temperatures on openSUSE and Clear Linux, but even with Clear having the most wins, it did do better than openSUSE on thermal/power usage.

On a geometric mean basis, Clear Linux was about 38% faster than Ubuntu and openSUSE Tumbleweed while the average AC power draw of this Xeon system was just 12% higher with Clear Linux over Ubuntu.

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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 20,000 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 TwitterLinkedIn,> or contacted via