Antminer S21+ vs MicroBT WhatsMiner M78
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | MicroBT WhatsMiner M78 |
|---|---|---|
| 216.0 TH/s | Hashrate | 464.0 TH/s |
| 3,564 W | Power Consumption | 6,728 W |
| 16.5 J/TH | Efficiency | 14.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.0 kg | Weight | 18.0 kg |
| 12,160 BTU/hr | BTU Output | 22,956 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S21+
MicroBT WhatsMiner M78
Based on BTC price of $73,699 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the MicroBT WhatsMiner M78 wins on 2 of 3 factors (efficiency, hashrate). The Antminer S21+ holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
MicroBT WhatsMiner M7814.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21+ or MicroBT WhatsMiner M78 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M78 is more profitable at $-1.33/day compared to $-1.65/day for the Antminer S21+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21+ or MicroBT WhatsMiner M78?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S21+ or MicroBT WhatsMiner M78?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Antminer S21+ and MicroBT WhatsMiner M78?
The Antminer S21+ runs at 16.5 J/TH while the MicroBT WhatsMiner M78 runs at 14.5 J/TH — a difference of 2.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.