MicroBT Whatsminer M21 vs MicroBT WhatsMiner M73
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | MicroBT WhatsMiner M73 |
|---|---|---|
| 31.0 TH/s | Hashrate | 512.0 TH/s |
| 1,860 W | Power Consumption | 7,424 W |
| 60.0 J/TH | Efficiency | 14.5 J/TH |
| — | Noise Level | 75 dB |
| 7,150.0 kg | Weight | 27.5 kg |
| 6,346 BTU/hr | BTU Output | 25,331 BTU/hr |
| 28/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
MicroBT WhatsMiner M73
Based on BTC price of $79,222 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the MicroBT WhatsMiner M73 wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 1552% more hashrate (31.0 vs 512.0 TH/s). The MicroBT Whatsminer M21 claws back ground on power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M21 and MicroBT WhatsMiner M73 actually differ, with the gap quantified:
- MicroBT WhatsMiner M73 1552% more hashrate (31.0 vs 512.0 TH/s)
- MicroBT Whatsminer M21 75% better power draw (1,860 vs 7,424 W)
- MicroBT WhatsMiner M73 76% better efficiency (60.0 vs 14.5 J/TH)
- MicroBT WhatsMiner M73 100% better weight (7,150.0 vs 27.5 kg)
- MicroBT WhatsMiner M73 299% more heat output (6,346 vs 25,331 BTU/hr)
- MicroBT WhatsMiner M73 7% more home mining score (28.0 vs 30.0)
Best For...
Best for Profitability
MicroBT WhatsMiner M73$4.73/day higher profit at current rates.
Best for Home Mining
MicroBT WhatsMiner M73Score: 30/100. 75 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M7314.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M21 vs MicroBT WhatsMiner M73: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M73 is more profitable at $1.43/day compared to $-3.30/day for the MicroBT Whatsminer M21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
MicroBT Whatsminer M21 vs MicroBT WhatsMiner M73: which runs at a lower noise level?
The MicroBT WhatsMiner M73 is quieter at 75 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the MicroBT Whatsminer M21 or the MicroBT WhatsMiner M73?
The MicroBT WhatsMiner M73 scores 30/100 on our Home Mining Score (vs 28/100 for the MicroBT Whatsminer M21). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the MicroBT Whatsminer M21 and MicroBT WhatsMiner M73 on J/TH?
The MicroBT Whatsminer M21 runs at 60.0 J/TH while the MicroBT WhatsMiner M73 runs at 14.5 J/TH — a difference of 45.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 76% better efficiency (60.0 vs 14.5 J/TH).