Bitmain Antminer S21e Hyd (310Th) vs Antminer S9j
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e Hyd (310Th) | Specification | Antminer S9j |
|---|---|---|
| 310.0 TH/s | Hashrate | 14.5 TH/s |
| 5,270 W | Power Consumption | 1,350 W |
| 17.0 J/TH | Efficiency | 93.1 J/TH |
| 75 dB | Noise Level | 76 dB |
| 12.8 kg | Weight | 4.2 kg |
| 17,981 BTU/hr | BTU Output | 4,606 BTU/hr |
| 30/100 | Home Mining Score | 83/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21e Hyd (310Th)
Antminer S9j
Based on BTC price of $77,572 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21e Hyd (310Th) wins on 3 of 5 factors (efficiency, hashrate, noise level). The Antminer S9j 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (310Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21e Hyd (310Th) or Antminer S9j more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (310Th) is more profitable at $-1.50/day compared to $-2.72/day for the Antminer S9j. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21e Hyd (310Th) or Antminer S9j?
The Bitmain Antminer S21e Hyd (310Th) is quieter at 75 dB compared to the Antminer S9j at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21e Hyd (310Th) or Antminer S9j?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21e Hyd (310Th)). 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 S21e Hyd (310Th) and Antminer S9j?
The Bitmain Antminer S21e Hyd (310Th) runs at 17.0 J/TH while the Antminer S9j runs at 93.1 J/TH — a difference of 76.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.