Coinovo · Miners · WhatsMiner M78S
498 TH/s at 6,723 watts. 13.5 J/TH, which is rank 19 of 85 in this comparison.
Network hashrate 973 EH/s ·
Household prices per Eurostat, 2. Halbjahr 2025, including all taxes and levies. Your own tariff may differ considerably; cheap switching offers often sit ten cents below. Just type yours in.
The break-even electricity price is the price per kilowatt-hour at which earnings exactly cover the power bill. Below it the machine earns, above it the machine burns money. In central Europe that is the number almost everything turns on.
Not included: connection, cooling, power-supply losses, downtime and maintenance. Water cooling adds the loop itself, hosting adds the slot fee. Network difficulty rises over the long run, which lowers earnings at the same hashrate; the payback figure uses today's values and is therefore on the optimistic side.
MicroBT's WhatsMiner M78S delivers 498 TH/s at 6,723 watts, so 13.5 J/TH, which puts it in the top third of this comparison: rank 19 of 85. Water-cooled means a heat exchanger, pumps and somewhere for the waste heat to go. For a single machine that effort rarely pays; for a row of them it does. Its closest neighbours are the Antminer S21e XP Hyd at 13.0 J/TH above and the Avalon A16 at 13.8 J/TH below. The gap upwards is 0.5 J/TH; whether the premium for it is worth paying depends entirely on your electricity price. We hold no market reference for this model, so the price field above stays empty. Enter your own quote and payback appears beside it. Net per day and break-even do not need a price anyway.
| Model | TH/s | J/TH | Net/day | Break-even | Price |
|---|---|---|---|---|---|
| Teraflux AH3880 | 600 | 13.5 | – | – | 4,966 € |
| Antminer S21 XP | 270 | 13.5 | – | – | 6,004 € |
| SealMiner A3 Hydro | 500 | 13.5 | – | – | — |
| WhatsMiner M76S | 384 | 13.5 | – | – | — |
| Antminer S21 XP Imm | 300 | 13.5 | – | – | — |
| WhatsMiner M72S | 282 | 13.5 | – | – | — |
| WhatsMiner M78S | 498 | 13.5 | – | – | — |
If you do not like the numbers, you are not alone: at household prices almost none of these machines pay off in central Europe. If you still want to understand how mining works economically, you can play it through in the Coinovo app, with the same models and the same formulas, but without hardware and without a power bill.
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