Bitmain Antminer S21+ Hyd vs Bitmain Antminer T19 Hydro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21+ Hyd | Specification | Bitmain Antminer T19 Hydro |
|---|---|---|
| 319.0 TH/s | Hashrate | 158.0 TH/s |
| 4,785 W | Power Consumption | 5,451 W |
| 15.0 J/TH | Efficiency | 34.5 J/TH |
| 50 dB | Noise Level | 40 dB |
| 17.5 kg | Weight | 15.8 kg |
| 16,326 BTU/hr | BTU Output | 18,599 BTU/hr |
| 44/100 | Home Mining Score | 51/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21+ Hyd
Bitmain Antminer T19 Hydro
Based on BTC price of $79,097 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21+ Hyd wins on 3 of 5 factors (efficiency, hashrate, power consumption). The standout gap is 57% better efficiency (15.0 vs 34.5 J/TH) in the Bitmain Antminer S21+ Hyd's favour. The Bitmain Antminer T19 Hydro holds the edge in home mining score and noise level. 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 S21+ Hyd and Bitmain Antminer T19 Hydro actually differ, with the gap quantified:
- Bitmain Antminer S21+ Hyd 102% more hashrate (319 vs 158 TH/s)
- Bitmain Antminer S21+ Hyd 12% better power draw (4,785 vs 5,451 W)
- Bitmain Antminer S21+ Hyd 57% better efficiency (15.0 vs 34.5 J/TH)
- Bitmain Antminer T19 Hydro 20% better noise (50.0 vs 40.0 dB)
- Bitmain Antminer T19 Hydro 10% better weight (17.5 vs 15.8 kg)
- Bitmain Antminer T19 Hydro 14% more heat output (16,326 vs 18,599 BTU/hr)
- Bitmain Antminer T19 Hydro 16% more home mining score (44.0 vs 51.0)
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 S21+ Hyd | Metric | Bitmain Antminer T19 Hydro |
|---|---|---|
| $2,499 | Upfront cost (MSRP) | — |
| $0.13 | Daily net profit | -$7.33 |
| -$2,453 | Net after 1 year | -$2,676 |
| -$2,406 | Net after 2 years | -$5,352 |
| -$2,360 | Net after 3 years | -$8,028 |
| Takes ~53.8 years to pay back at current rates | Payback period | — |
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$7.46/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer T19 HydroScore: 51/100. 40 dB noise level.
Best for Efficiency
Bitmain Antminer S21+ Hyd15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21+ Hyd or the Bitmain Antminer T19 Hydro?
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 $-7.33/day for the Bitmain Antminer T19 Hydro. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21+ Hyd or Bitmain Antminer T19 Hydro?
The Bitmain Antminer T19 Hydro is quieter at 40 dB compared to the Bitmain Antminer S21+ Hyd at 50 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S21+ Hyd or the Bitmain Antminer T19 Hydro?
The Bitmain Antminer T19 Hydro scores 51/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21+ Hyd). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21+ Hyd vs Bitmain Antminer T19 Hydro: how much does the efficiency gap matter?
The Bitmain Antminer S21+ Hyd runs at 15.0 J/TH while the Bitmain Antminer T19 Hydro runs at 34.5 J/TH — a difference of 19.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 57% better efficiency (15.0 vs 34.5 J/TH).