Bitmain Antminer S19j Pro (100Th) vs Antminer S21+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19j Pro (100Th) | Specification | Antminer S21+ |
|---|---|---|
| 100.0 TH/s | Hashrate | 216.0 TH/s |
| 3,050 W | Power Consumption | 3,564 W |
| 30.5 J/TH | Efficiency | 16.5 J/TH |
| — | Noise Level | 75 dB |
| 13,200.0 kg | Weight | 15.0 kg |
| 10,407 BTU/hr | BTU Output | 12,160 BTU/hr |
| 22/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S19j Pro (100Th)
Antminer S21+
Based on BTC price of $76,982 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21+ wins on 4 of 6 factors (efficiency, hashrate, home mining score, noise level). The standout gap is 116% more hashrate (100 vs 216 TH/s) in the Antminer S21+'s favour. That said, the Bitmain Antminer S19j Pro (100Th) isn't beaten everywhere — it still wins power consumption and price-performance. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S19j Pro (100Th) and Antminer S21+ sit on each measurable spec:
- Antminer S21+ 116% more hashrate (100 vs 216 TH/s)
- Bitmain Antminer S19j Pro (100Th) 14% better power draw (3,050 vs 3,564 W)
- Antminer S21+ 46% better efficiency (30.5 vs 16.5 J/TH)
- Antminer S21+ 100% better weight (13,200.0 vs 15.0 kg)
- Antminer S21+ 17% more heat output (10,407 vs 12,160 BTU/hr)
- Antminer S21+ 36% more home mining score (22.0 vs 30.0)
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.
| Bitmain Antminer S19j Pro (100Th) | Metric | Antminer S21+ |
|---|---|---|
| $600 | Upfront cost (MSRP) | $6,500 |
| -$3.78 | Daily net profit | -$0.90 |
| -$1,979 | Net after 1 year | -$6,829 |
| -$3,358 | Net after 2 years | -$7,158 |
| -$4,736 | Net after 3 years | -$7,487 |
| 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 S21+Score: 30/100. 75 dB noise level.
Best for Efficiency
Antminer S21+16.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S19j Pro (100Th) vs Antminer S21+: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21+ is more profitable at $-0.90/day compared to $-3.78/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.
Bitmain Antminer S19j Pro (100Th) vs Antminer S21+: which runs at a lower noise level?
The Antminer S21+ is quieter at 75 dB compared to the Bitmain Antminer S19j Pro (100Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S19j Pro (100Th) vs Antminer S21+: which fits a residential setup better?
The Antminer S21+ scores 30/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19j Pro (100Th)). 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 Pro (100Th) and Antminer S21+?
The Bitmain Antminer S19j Pro (100Th) runs at 30.5 J/TH while the Antminer S21+ runs at 16.5 J/TH — a difference of 14.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 46% better efficiency (30.5 vs 16.5 J/TH).