Antminer S21 vs MicroBT WhatsMiner M73
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | MicroBT WhatsMiner M73 |
|---|---|---|
| 200.0 TH/s | Hashrate | 512.0 TH/s |
| 3,500 W | Power Consumption | 7,424 W |
| 17.5 J/TH | Efficiency | 14.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.6 kg | Weight | 27.5 kg |
| 11,942 BTU/hr | BTU Output | 25,331 BTU/hr |
| 36/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S21
MicroBT WhatsMiner M73
Based on BTC price of $77,258 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the MicroBT WhatsMiner M73 wins on 2 of 4 factors (efficiency, hashrate). The Antminer S21 holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
MicroBT WhatsMiner M73$1.76/day higher profit at current rates.
Best for Home Mining
Antminer S21Score: 36/100. 75 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M7314.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 or MicroBT WhatsMiner M73 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M73 is more profitable at $0.52/day compared to $-1.24/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 M73?
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 M73?
The Antminer S21 scores 36/100 on our Home Mining Score (vs 30/100 for the MicroBT WhatsMiner M73). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer S21 and MicroBT WhatsMiner M73?
The Antminer S21 runs at 17.5 J/TH while the MicroBT WhatsMiner M73 runs at 14.5 J/TH — a difference of 3.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.