Buyer tooling
Compare ASIC miners by efficiency and running cost
Every Bitcoin miner in our catalogue with published hashrate and wall power, ranked by joules per terahash — lowest first. The last three columns are the cost of the electricity alone to run the machine for 24 hours at three common industrial rates. They are arithmetic, not a forecast: watts x 24 / 1000 x your rate.
Two numbers do most of the work here. Efficiency tells you whether the machine survives the next difficulty increase. Power at the wall tells you what you have to build: the circuit, the breaker, the cooling capacity and the noise. Almost nothing in this table runs on an ordinary household outlet. To model revenue rather than cost, use the mining profitability calculator.
Common questions
- Why rank miners by J/TH instead of hashrate?
- Electricity is the largest lifetime cost of running an ASIC, so the machine that converts the most electricity into hashrate wins. Joules per terahash expresses exactly that. A slower machine at 11 J/TH will out-earn a faster one at 20 J/TH at the same power price.
- How is the daily power cost calculated?
- Power at the wall in watts multiplied by 24 hours, divided by 1,000, multiplied by the electricity price. It is arithmetic on the electricity only — it excludes mining revenue, pool fees, cooling overhead and hosting costs.
- What efficiency do I need to break even?
- It depends on your power price more than on the machine. As a rough guide in 2026, air-cooled units above 20 J/TH need electricity below about six cents per kWh to stay positive, while 10-12 J/TH hydro machines still clear at ten to twelve cents.
- Does hydro cooling improve efficiency by itself?
- Indirectly. Liquid cooling holds chip temperature flat, which lets the firmware run a higher clock at the same voltage and avoids thermal throttling in summer. The efficiency figures quoted for hydro units assume a working loop with return water in the 45-55°C range.