Bitmain Antminer S21+ Hyd (358Th) vs Bitmain Antminer S23
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21+ Hyd (358Th) | Specification | Bitmain Antminer S23 |
|---|---|---|
| 358.0 TH/s | Hashrate | 318.0 TH/s |
| 5,370 W | Power Consumption | 3,498 W |
| 15.0 J/TH | Efficiency | 11.0 J/TH |
| 50 dB | Noise Level | 75 dB |
| 12.8 kg | Weight | 14.5 kg |
| 18,322 BTU/hr | BTU Output | 11,935 BTU/hr |
| 44/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21+ Hyd (358Th)
Bitmain Antminer S23
Based on BTC price of $73,977 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Bitmain Antminer S23 offers 27% better efficiency at 11.0 J/TH compared to the Bitmain Antminer S21+ Hyd (358Th) at 15.0 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
Bitmain Antminer S23$3.21/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21+ Hyd (358Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S2311.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21+ Hyd (358Th) or Bitmain Antminer S23 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S23 is more profitable at $1.80/day compared to $-1.41/day for the Bitmain Antminer S21+ Hyd (358Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21+ Hyd (358Th) or Bitmain Antminer S23?
The Bitmain Antminer S21+ Hyd (358Th) is quieter at 50 dB compared to the Bitmain Antminer S23 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21+ Hyd (358Th) or Bitmain Antminer S23?
The Bitmain Antminer S21+ Hyd (358Th) scores 44/100 on our Home Mining Score (vs 36/100 for the Bitmain Antminer S23). 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 S21+ Hyd (358Th) and Bitmain Antminer S23?
The Bitmain Antminer S21+ Hyd (358Th) runs at 15.0 J/TH while the Bitmain Antminer S23 runs at 11.0 J/TH — a difference of 4.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.