Bitmain Antminer S19 Pro (100Th/s) vs Bitmain Antminer S21+ Hyd
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19 Pro (100Th/s) | Specification | Bitmain Antminer S21+ Hyd |
|---|---|---|
| 100.0 TH/s | Hashrate | 319.0 TH/s |
| 2,950 W | Power Consumption | 4,785 W |
| 29.5 J/TH | Efficiency | 15.0 J/TH |
| — | Noise Level | 50 dB |
| 14.6 kg | Weight | 17.5 kg |
| 10,065 BTU/hr | BTU Output | 16,326 BTU/hr |
| 22/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S19 Pro (100Th/s)
Bitmain Antminer S21+ Hyd
Based on BTC price of $79,097 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S21+ Hyd edges it: 4 of 6 factors go its way (efficiency, hashrate, home mining score, noise level). Where it pulls away hardest is 219% more hashrate (100 vs 319 TH/s). That said, the Bitmain Antminer S19 Pro (100Th/s) isn't beaten everywhere — it still wins power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Bitmain Antminer S19 Pro (100Th/s) and Bitmain Antminer S21+ Hyd actually differ, with the gap quantified:
- Bitmain Antminer S21+ Hyd 219% more hashrate (100 vs 319 TH/s)
- Bitmain Antminer S19 Pro (100Th/s) 38% better power draw (2,950 vs 4,785 W)
- Bitmain Antminer S21+ Hyd 49% better efficiency (29.5 vs 15.0 J/TH)
- Bitmain Antminer S19 Pro (100Th/s) 17% better weight (14.6 vs 17.5 kg)
- Bitmain Antminer S21+ Hyd 62% more heat output (10,065 vs 16,326 BTU/hr)
- Bitmain Antminer S21+ Hyd 100% more home mining score (22.0 vs 44.0)
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 S19 Pro (100Th/s) | Metric | Bitmain Antminer S21+ Hyd |
|---|---|---|
| $525 | Upfront cost (MSRP) | $2,499 |
| -$3.44 | Daily net profit | $0.13 |
| -$1,781 | Net after 1 year | -$2,453 |
| -$3,036 | Net after 2 years | -$2,406 |
| -$4,292 | Net after 3 years | -$2,360 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~53.8 years to pay back at current rates |
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
Bitmain Antminer S21+ Hyd$3.57/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21+ HydScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21+ Hyd15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S19 Pro (100Th/s) or Bitmain Antminer S21+ Hyd more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21+ Hyd is more profitable at $0.13/day compared to $-3.44/day for the Bitmain Antminer S19 Pro (100Th/s). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S19 Pro (100Th/s) or the Bitmain Antminer S21+ Hyd better for noise-sensitive spaces?
The Bitmain Antminer S21+ Hyd is quieter at 50 dB compared to the Bitmain Antminer S19 Pro (100Th/s) 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 S19 Pro (100Th/s) or the Bitmain Antminer S21+ Hyd?
The Bitmain Antminer S21+ Hyd scores 44/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19 Pro (100Th/s)). 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 S19 Pro (100Th/s) and Bitmain Antminer S21+ Hyd?
The Bitmain Antminer S19 Pro (100Th/s) runs at 29.5 J/TH while the Bitmain Antminer S21+ Hyd runs at 15.0 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 49% better efficiency (29.5 vs 15.0 J/TH).
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