A suggested workload to get a stable and reproducable deviation metric is Cinebench R20 NT, with the HWiNFO sample rate set to less or equal to 1000ms. That is due to the typical measurement accuracy of the VRM controller telemetry, and also due to the highly advanced and fast power management on Ryzen CPUs, that not only result in extremely low idle, but also in extremely rapidly changing power consumption. Obviously, the figure can be greater than 100%, but for the obvious reasons it rarely isĪs stated before, this metric is only valid during a relatively stable near-full-load condition. So, if you see an average value that is significantly lower than ~ 95% there is most likely intentional biasing going on. A ballpark for a threshold, where the readings become suspicious is around ±5%. When the motherboard manufacturer has both properly calibrated and declared the reference value, the reported figure should be pretty close to 100% under a stable, near-full-load scenario. The displayed figure is a percentage, with 100.0% being the completely unbiased baseline. HWiNFO will display "Power Reporting Deviation" metric under the CPUs enhanced sensors.
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