Bitmain Antminer S11 (20.5Th) vs Antminer S21 XP
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S11 (20.5Th) | Specification | Antminer S21 XP |
|---|---|---|
| 20.5 TH/s | Taux de hachage | 270.0 TH/s |
| 1,530 W | Consommation électrique | 3,645 W |
| 74.6 J/TH | Efficiency | 13.5 J/TH |
| — | Niveau de bruit | 75 dB |
| 6.5 kg | Weight | 15.4 kg |
| 5,220 BTU/hr | BTU Output | 12,437 BTU/hr |
| 28/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S11 (20.5Th)
Antminer S21 XP
Based on BTC price of $62,980 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 XP l'emporte sur 4 des 5 facteurs (efficacité, hashrate, score de minage domestique, niveau sonore). Where it pulls away hardest is 1217% more hashrate (20.5 vs 270.0 TH/s). That said, the Bitmain Antminer S11 (20.5Th) isn't beaten everywhere — it still wins consommation électrique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S11 (20.5Th) and Antminer S21 XP diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 XP 1217% more hashrate (20.5 vs 270.0 TH/s)
- Bitmain Antminer S11 (20.5Th) 58% better power draw (1,530 vs 3,645 W)
- Antminer S21 XP 82% better efficacité (74.6 vs 13.5 J/TH)
- Bitmain Antminer S11 (20.5Th) 58% better weight (6.5 vs 15.4 kg)
- Antminer S21 XP 138% more heat output (5,220 vs 12,437 BTU/hr)
- Antminer S21 XP 7% more score de minage domestique (28.0 vs 30.0)
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 S11 (20.5Th) | Metric | Antminer S21 XP |
|---|---|---|
| — | Upfront cost (MSRP) | $8,200 |
| -$3.09 | Daily net profit | -$1.06 |
| -$1,127 | Net after 1 year | -$8,585 |
| -$2,254 | Net after 2 years | -$8,970 |
| -$3,381 | Net after 3 years | -$9,355 |
| — | 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 XPScore: 30/100. 75 dB noise level.
Best for Efficiency
Antminer S21 XP13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S11 (20.5Th) vs Antminer S21 XP: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 XP is more profitable at $-1.06/day compared to $-3.09/day for the Bitmain Antminer S11 (20.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S11 (20.5Th) or Antminer S21 XP?
The Antminer S21 XP is quieter at 75 dB compared to the Bitmain Antminer S11 (20.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S11 (20.5Th) vs Antminer S21 XP: which fits a residential setup better?
The Antminer S21 XP scores 30/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer S11 (20.5Th)). 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 S11 (20.5Th) and Antminer S21 XP on J/TH?
The Bitmain Antminer S11 (20.5Th) runs at 74.6 J/TH while the Antminer S21 XP runs at 13.5 J/TH — a difference of 61.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 82% better efficacité (74.6 vs 13.5 J/TH).