Antminer D9 vs Antminer S21 XP
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the Antminer S21 XP is the stronger pick — it leads on 3 of 4 head-to-head factors. The Antminer D9 runs 1,770.0 GH/s; the Antminer S21 XP runs 270.0 TH/s.
Specs verified against the D-Central Mining Bible \xc2\xb7 June 2026
Specifications Comparison
| Antminer D9 | Specification | Antminer S21 XP |
|---|---|---|
| 1,770.0 GH/s | Taux de hachage | 270.0 TH/s |
| 2,839 W | Consommation électrique | 3,645 W |
| 1,604.0 J/TH | Efficiency | 13.5 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 16.1 kg | Weight | 15.4 kg |
| 9,687 BTU/hr | BTU Output | 12,437 BTU/hr |
| 8/100 | Home Mining Score | 8/100 |
| — | Release Year | — |
| X11 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer D9
Antminer S21 XP
Based on BTC price of $66,248 and current network difficulty as of Jun 17, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Antminer S21 XP comes out ahead — it takes 3 of 4 (efficacité, hashrate, rapport qualité-prix). The standout gap is 15154% more hashrate (1.8 vs 270.0 TH/s) in the Antminer S21 XP's favour. The Antminer D9 claws back ground on consommation électrique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Antminer D9 and Antminer S21 XP diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 XP 15154% more hashrate (1.8 vs 270.0 TH/s)
- Antminer D9 22% better power draw (2,839 vs 3,645 W)
- Antminer S21 XP 99% better efficacité (1,604.0 vs 13.5 J/TH)
- Antminer S21 XP 4% better weight (16.1 vs 15.4 kg)
- Antminer S21 XP 28% more heat output (9,687 vs 12,437 BTU/hr)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Antminer D9 | Metric | Antminer S21 XP |
|---|---|---|
| $3,000 | Upfront cost (MSRP) | $8,200 |
| -$6.75 | Daily net profit | $0.25 |
| -$5,465 | Net after 1 year | -$8,108 |
| -$7,931 | Net after 2 years | -$8,016 |
| -$10,396 | Net after 3 years | -$7,924 |
| Does not pay back at current rates (negative daily profit) | Payback period | Takes ~89.0 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
Antminer S21 XP$7.01/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Antminer S21 XP13.5 J/TH — lower electricity cost per terahash.
Foire aux questions
Which makes more money, the Antminer D9 or the Antminer S21 XP?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 XP is more profitable at $0.25/day compared to $-6.75/day for the Antminer D9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer D9 vs Antminer S21 XP: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Antminer D9 or the Antminer S21 XP?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
Antminer D9 vs Antminer S21 XP: how much does the efficiency gap matter?
The Antminer D9 runs at 1,604.0 J/TH while the Antminer S21 XP runs at 13.5 J/TH — a difference of 1,590.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 99% better efficacité (1,604.0 vs 13.5 J/TH).