Bitmain Antminer S19j Pro (100Th) vs Bitmain Antminer S21 Hyd (335Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19j Pro (100Th) | 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 |
| — | Niveau de bruit | — |
| 13,200.0 kg | Weight | 14.2 kg |
| 10,407 BTU/hr | BTU Output | 18,288 BTU/hr |
| 22/100 | Home Mining Score | 16/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S19j Pro (100Th)
Bitmain Antminer S21 Hyd (335Th)
Based on BTC price of $78,230 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21 Hyd (335Th), which leads on 2 of 5 weighted factors (efficacité, hashrate). Where it pulls away hardest is 235% more hashrate (100 vs 335 TH/s). That said, the Bitmain Antminer S19j Pro (100Th) isn't beaten everywhere — it still wins consommation électrique and score de minage domestique and rapport qualité-prix. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Bitmain Antminer S19j Pro (100Th) and Bitmain Antminer S21 Hyd (335Th) actually differ, with the gap quantified:
- Bitmain Antminer S21 Hyd (335Th) 235% more hashrate (100 vs 335 TH/s)
- Bitmain Antminer S19j Pro (100Th) 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)
- Bitmain Antminer S21 Hyd (335Th) 100% better weight (13,200.0 vs 14.2 kg)
- Bitmain Antminer S21 Hyd (335Th) 76% more heat output (10,407 vs 18,288 BTU/hr)
- Bitmain Antminer S19j Pro (100Th) 38% more score de minage domestique (22.0 vs 16.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S19j Pro (100Th) | Metric | Bitmain Antminer S21 Hyd (335Th) |
|---|---|---|
| $600 | Upfront cost (MSRP) | $3,999 |
| -$3.72 | Daily net profit | -$0.80 |
| -$1,958 | Net after 1 year | -$4,292 |
| -$3,316 | Net after 2 years | -$4,586 |
| -$4,673 | Net after 3 years | -$4,879 |
| 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 S19j Pro (100Th)Score: 22/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Hyd (335Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S19j Pro (100Th) or the Bitmain Antminer S21 Hyd (335Th)?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Hyd (335Th) is more profitable at $-0.80/day compared to $-3.72/day for the Bitmain Antminer S19j Pro (100Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S19j Pro (100Th) or Bitmain Antminer S21 Hyd (335Th)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitmain Antminer S19j Pro (100Th) or the Bitmain Antminer S21 Hyd (335Th)?
The Bitmain Antminer S19j Pro (100Th) scores 22/100 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.
How far apart are the Bitmain Antminer S19j Pro (100Th) and Bitmain Antminer S21 Hyd (335Th) on J/TH?
The Bitmain Antminer S19j Pro (100Th) 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).