Bitmain Antminer S19j (90Th) vs Bitmain Antminer S21e Hyd (310Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19j (90Th) | Specification | Bitmain Antminer S21e Hyd (310Th) |
|---|---|---|
| 90.0 TH/s | Hashrate | 310.0 TH/s |
| 3,250 W | Power Consumption | 5,270 W |
| 36.1 J/TH | Efficiency | 17.0 J/TH |
| — | Noise Level | 75 dB |
| 14,200.0 kg | Weight | 12.8 kg |
| 11,089 BTU/hr | BTU Output | 17,981 BTU/hr |
| 22/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S19j (90Th)
Bitmain Antminer S21e Hyd (310Th)
Based on BTC price of $79,427 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21e Hyd (310Th), which leads on 4 of 6 weighted factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 244% more hashrate (90.0 vs 310.0 TH/s). The Bitmain Antminer S19j (90Th) claws back ground on power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S19j (90Th) and Bitmain Antminer S21e Hyd (310Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21e Hyd (310Th) 244% more hashrate (90.0 vs 310.0 TH/s)
- Bitmain Antminer S19j (90Th) 38% better power draw (3,250 vs 5,270 W)
- Bitmain Antminer S21e Hyd (310Th) 53% better efficiency (36.1 vs 17.0 J/TH)
- Bitmain Antminer S21e Hyd (310Th) 100% better weight (14,200.0 vs 12.8 kg)
- Bitmain Antminer S21e Hyd (310Th) 62% more heat output (11,089 vs 17,981 BTU/hr)
- Bitmain Antminer S21e Hyd (310Th) 36% more home mining score (22.0 vs 30.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer S19j (90Th) | Metric | Bitmain Antminer S21e Hyd (310Th) |
|---|---|---|
| $405 | Upfront cost (MSRP) | $1,679 |
| -$4.41 | Daily net profit | -$0.96 |
| -$2,014 | Net after 1 year | -$2,031 |
| -$3,623 | Net after 2 years | -$2,382 |
| -$5,231 | Net after 3 years | -$2,734 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitmain Antminer S21e Hyd (310Th)Score: 30/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (310Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S19j (90Th) vs Bitmain Antminer S21e Hyd (310Th): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (310Th) is more profitable at $-0.96/day compared to $-4.41/day for the Bitmain Antminer S19j (90Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S19j (90Th) or Bitmain Antminer S21e Hyd (310Th)?
The Bitmain Antminer S21e Hyd (310Th) is quieter at 75 dB compared to the Bitmain Antminer S19j (90Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S19j (90Th) or the Bitmain Antminer S21e Hyd (310Th)?
The Bitmain Antminer S21e Hyd (310Th) scores 30/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19j (90Th)). 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 S19j (90Th) and Bitmain Antminer S21e Hyd (310Th)?
The Bitmain Antminer S19j (90Th) runs at 36.1 J/TH while the Bitmain Antminer S21e Hyd (310Th) runs at 17.0 J/TH — a difference of 19.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 53% better efficiency (36.1 vs 17.0 J/TH).