Antminer S19j Pro vs Bitmain Antminer S21 Hyd (335Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19j Pro | Specification | Bitmain Antminer S21 Hyd (335Th) |
|---|---|---|
| 100.0 TH/s | Taux de hachage | 335.0 TH/s |
| 3,050 W | Consommation électrique | 5,360 W |
| 30.5 J/TH | Efficiency | 16.0 J/TH |
| 75 dB | Niveau de bruit | — |
| 13.2 kg | Weight | 14.2 kg |
| 10,407 BTU/hr | BTU Output | 18,288 BTU/hr |
| 84/100 | Home Mining Score | 16/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S19j Pro
Bitmain Antminer S21 Hyd (335Th)
Based on BTC price of $62,980 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S21 Hyd (335Th) comes out ahead — it takes 3 of 6 (efficacité, hashrate, rapport qualité-prix). The standout gap is 235% more hashrate (100 vs 335 TH/s) in the Bitmain Antminer S21 Hyd (335Th)'s favour. The Antminer S19j Pro claws back ground on consommation électrique and score de minage domestique and niveau sonore. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer S19j Pro and Bitmain Antminer S21 Hyd (335Th) sit on each measurable spec:
- Bitmain Antminer S21 Hyd (335Th) 235% more hashrate (100 vs 335 TH/s)
- Antminer S19j Pro 43% better power draw (3,050 vs 5,360 W)
- Bitmain Antminer S21 Hyd (335Th) 48% better efficacité (30.5 vs 16.0 J/TH)
- Antminer S19j Pro 7% better weight (13.2 vs 14.2 kg)
- Bitmain Antminer S21 Hyd (335Th) 76% more heat output (10,407 vs 18,288 BTU/hr)
- Antminer S19j Pro 425% more score de minage domestique (84.0 vs 16.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer S19j Pro | Metric | Bitmain Antminer S21 Hyd (335Th) |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $3,999 |
| -$4.47 | Daily net profit | -$3.32 |
| -$4,132 | Net after 1 year | -$5,210 |
| -$5,764 | Net after 2 years | -$6,422 |
| -$7,395 | Net after 3 years | -$7,633 |
| 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
Antminer S19j ProScore: 84/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Hyd (335Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S19j Pro vs Bitmain Antminer S21 Hyd (335Th): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Hyd (335Th) is more profitable at $-3.32/day compared to $-4.47/day for the Antminer S19j Pro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S19j Pro or Bitmain Antminer S21 Hyd (335Th)?
The Antminer S19j Pro is quieter at 75 dB compared to the Bitmain Antminer S21 Hyd (335Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S19j Pro vs Bitmain Antminer S21 Hyd (335Th): which fits a residential setup better?
The Antminer S19j Pro scores 84/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S21 Hyd (335Th)). 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 Antminer S19j Pro and Bitmain Antminer S21 Hyd (335Th)?
The Antminer S19j Pro runs at 30.5 J/TH while the Bitmain Antminer S21 Hyd (335Th) runs at 16.0 J/TH — a difference of 14.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 48% better efficacité (30.5 vs 16.0 J/TH).