Antminer D9 vs Bitmain Antminer KS5 Pro (21Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer D9 | Specification | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| 1,770.0 GH/s | Taux de hachage | 21.0 TH/s |
| 2,839 W | Consommation électrique | 3,150 W |
| 1,604.0 J/TH | Efficiency | 150.0 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 16.1 kg | Weight | 15.8 kg |
| 9,687 BTU/hr | BTU Output | 10,748 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| X11 | Algorithme | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer D9
Bitmain Antminer KS5 Pro (21Th)
Based on BTC price of $78,195 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer KS5 Pro (21Th) edges it: 3 of 4 factors go its way (efficacité, hashrate, rapport qualité-prix). Its biggest concrete edge: 1086% more hashrate (1.8 vs 21.0 TH/s). The Antminer D9 claws back ground on consommation électrique. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Antminer D9 and Bitmain Antminer KS5 Pro (21Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer KS5 Pro (21Th) 1086% more hashrate (1.8 vs 21.0 TH/s)
- Antminer D9 10% better power draw (2,839 vs 3,150 W)
- Bitmain Antminer KS5 Pro (21Th) 91% better efficacité (1,604 vs 150 J/TH)
- Bitmain Antminer KS5 Pro (21Th) 2% better weight (16.1 vs 15.8 kg)
- Bitmain Antminer KS5 Pro (21Th) 11% more heat output (9,687 vs 10,748 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 | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| $3,000 | Upfront cost (MSRP) | $860 |
| -$6.75 | Daily net profit | -$6.80 |
| -$5,464 | Net after 1 year | -$3,344 |
| -$7,927 | Net after 2 years | -$5,827 |
| -$10,391 | Net after 3 years | -$8,311 |
| 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain Antminer KS5 Pro (21Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer D9 or Bitmain Antminer KS5 Pro (21Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer D9 is more profitable at $-6.75/day compared to $-6.80/day for the Bitmain Antminer KS5 Pro (21Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer D9 vs Bitmain Antminer KS5 Pro (21Th): 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 Bitmain Antminer KS5 Pro (21Th)?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
How far apart are the Antminer D9 and Bitmain Antminer KS5 Pro (21Th) on J/TH?
The Antminer D9 runs at 1,604.0 J/TH while the Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH — a difference of 1,454.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 91% better efficacité (1,604 vs 150 J/TH).