Bitmain Antminer S23 Hyd 3U vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S23 Hyd 3U | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 1.2 PH/s | Hashrate | 31.0 TH/s |
| 11,020 W | Power Consumption | 1,860 W |
| 9.5 J/TH | Efficiency | 60.0 J/TH |
| 50 dB | Noise Level | — |
| — | Weight | 7,150.0 kg |
| 37,600 BTU/hr | BTU Output | 6,346 BTU/hr |
| 44/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S23 Hyd 3U
MicroBT Whatsminer M21
Based on BTC price of $77,705 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S23 Hyd 3U wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The MicroBT Whatsminer M21 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
Bitmain Antminer S23 Hyd 3U$18.69/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S23 Hyd 3UScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S23 Hyd 3U9.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S23 Hyd 3U or MicroBT Whatsminer M21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S23 Hyd 3U is more profitable at $15.34/day compared to $-3.35/day for the MicroBT Whatsminer M21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S23 Hyd 3U or MicroBT Whatsminer M21?
The Bitmain Antminer S23 Hyd 3U is quieter at 50 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S23 Hyd 3U or MicroBT Whatsminer M21?
The Bitmain Antminer S23 Hyd 3U scores 44/100 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.
What is the efficiency difference between Bitmain Antminer S23 Hyd 3U and MicroBT Whatsminer M21?
The Bitmain Antminer S23 Hyd 3U runs at 9.5 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 50.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.