Power efficiency is the ratio between hashrate and the power consumption. It means how many units of hashrate are needed to mine with 1 watt. The power efficiency can be expressed in different formats.
You can use this measurement when comparing different results within the same algorithm. If one mining client has larger power efficiency, its ratio between hashrate and power consumption is better. This also means this mining client has higher hashrate for the same amount of power consumed.
At minerstat, we are using hashrate per watt power efficiency, but in some cases you can also see the power efficiency expressed in watts per hashrate, which tells you how many watts are needed to mine with 1 unit of hashrate. In this measurement you are searching for mining clients with lower power efficiency as you want to spend less power for the same hashrate.
Was this article helpful?