Antminer S21 vs Antminer T19
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | Antminer T19 |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 84.0 TH/s |
| 3,500 W | Consommation électrique | 3,150 W |
| 17.5 J/TH | Efficiency | 37.5 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 14.6 kg | Weight | 14.4 kg |
| 11,942 BTU/hr | BTU Output | 10,748 BTU/hr |
| 36/100 | Home Mining Score | 84/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21
Antminer T19
Based on BTC price of $78,128 and current network difficulty as of May 17, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer S21 comes out ahead — it takes 2 of 5 (efficacité, hashrate). Its biggest concrete edge: 138% more hashrate (200.0 vs 84.0 TH/s). The Antminer T19 claws back ground on 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 Antminer S21 and Antminer T19 actually differ, with the gap quantified:
- Antminer S21 138% more hashrate (200.0 vs 84.0 TH/s)
- Antminer T19 10% better power draw (3,500 vs 3,150 W)
- Antminer S21 53% better efficacité (17.5 vs 37.5 J/TH)
- Antminer T19 1% better weight (14.6 vs 14.4 kg)
- Antminer S21 11% more heat output (11,942 vs 10,748 BTU/hr)
- Antminer T19 133% more score de minage domestique (36.0 vs 84.0)
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 S21 | Metric | Antminer T19 |
|---|---|---|
| $5,500 | Upfront cost (MSRP) | $1,800 |
| -$1.21 | Daily net profit | -$4.54 |
| -$5,941 | Net after 1 year | -$3,457 |
| -$6,383 | Net after 2 years | -$5,114 |
| -$6,824 | Net after 3 years | -$6,771 |
| 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 T19Score: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S21 vs Antminer T19: 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 $-1.21/day compared to $-4.54/day for the Antminer T19. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21 or Antminer T19?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Antminer S21 or the Antminer T19?
The Antminer T19 scores 84/100 on our Home Mining Score (vs 36/100 for the Antminer S21). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S21 vs Antminer T19: how much does the efficiency gap matter?
The Antminer S21 runs at 17.5 J/TH while the Antminer T19 runs at 37.5 J/TH — a difference of 20.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 53% better efficacité (17.5 vs 37.5 J/TH).