What is power efficiency?

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.

  • If the hashrate is expressed in H/s, the power efficiency will be expressed in H/W;
  • If the hashrate is expressed in KH/s, the power efficiency will be expressed in KH/W;
  • If the hashrate is expressed in MH/s, the power efficiency will be expressed in MH/W;
  • If the hashrate is expressed in GH/s, the power efficiency will be expressed in GH/W;
  • And so on.

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.

Power efficiency

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.