Antminer D9 vs Bitmain Antminer S11 (20.5Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer D9 | Specification | Bitmain Antminer S11 (20.5Th) |
|---|---|---|
| 1,770.0 GH/s | Hashrate | 20.5 TH/s |
| 2,839 W | Power Consumption | 1,530 W |
| 1,604.0 J/TH | Efficiency | 74.6 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | 6,500.0 kg |
| 9,687 BTU/hr | BTU Output | 5,220 BTU/hr |
| 36/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| X11 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer D9
Bitmain Antminer S11 (20.5Th)
Based on BTC price of $79,223 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S11 (20.5Th), which leads on 3 of 5 weighted factors (efficiency, hashrate, power consumption). Its biggest concrete edge: 95% better efficiency (1,604.0 vs 74.6 J/TH). The Antminer D9 claws back ground on home mining score and noise level. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Antminer D9 and Bitmain Antminer S11 (20.5Th) actually differ, with the gap quantified:
- Bitmain Antminer S11 (20.5Th) 1058% more hashrate (1.8 vs 20.5 TH/s)
- Bitmain Antminer S11 (20.5Th) 46% better power draw (2,839 vs 1,530 W)
- Bitmain Antminer S11 (20.5Th) 95% better efficiency (1,604.0 vs 74.6 J/TH)
- Antminer D9 100% better weight (16.1 vs 6,500.0 kg)
- Antminer D9 86% more heat output (9,687 vs 5,220 BTU/hr)
- Antminer D9 29% more home mining score (36.0 vs 28.0)
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.
| Antminer D9 | Metric | Bitmain Antminer S11 (20.5Th) |
|---|---|---|
| $3,000 | Upfront cost (MSRP) | — |
| -$6.75 | Daily net profit | -$2.92 |
| -$5,463 | Net after 1 year | -$1,067 |
| -$7,927 | Net after 2 years | -$2,135 |
| -$10,390 | Net after 3 years | -$3,202 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer D9Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S11 (20.5Th)74.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer D9 or the Bitmain Antminer S11 (20.5Th)?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S11 (20.5Th) is more profitable at $-2.92/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.
Is the Antminer D9 or the Bitmain Antminer S11 (20.5Th) better for noise-sensitive spaces?
The Antminer D9 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.
Antminer D9 vs Bitmain Antminer S11 (20.5Th): which fits a residential setup better?
The Antminer D9 scores 36/100 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.
Antminer D9 vs Bitmain Antminer S11 (20.5Th): how much does the efficiency gap matter?
The Antminer D9 runs at 1,604.0 J/TH while the Bitmain Antminer S11 (20.5Th) runs at 74.6 J/TH — a difference of 1,529.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 95% better efficiency (1,604.0 vs 74.6 J/TH).