Antminer D7 vs Bitmain Antminer S9i (14Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer D7 | Specification | Bitmain Antminer S9i (14Th) |
|---|---|---|
| 1,286.0 GH/s | Taux de hachage | 14.0 TH/s |
| 3,148 W | Consommation électrique | 1,320 W |
| 2,447.9 J/TH | Efficiency | 94.3 J/TH |
| 70 dB | Niveau de bruit | — |
| 14.4 kg | Weight | 4,200.0 kg |
| 10,741 BTU/hr | BTU Output | 4,504 BTU/hr |
| 36/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| X11 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer D7
Bitmain Antminer S9i (14Th)
Based on BTC price of $78,209 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S9i (14Th) edges it: 4 of 6 factors go its way (efficacité, hashrate, consommation électrique, rapport qualité-prix). Where it pulls away hardest is 96% better efficacité (2,447.9 vs 94.3 J/TH). That said, the Antminer D7 isn't beaten everywhere — it still wins score de minage domestique and niveau sonore. 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 D7 and Bitmain Antminer S9i (14Th) actually differ, with the gap quantified:
- Bitmain Antminer S9i (14Th) 989% more hashrate (1.3 vs 14.0 TH/s)
- Bitmain Antminer S9i (14Th) 58% better power draw (3,148 vs 1,320 W)
- Bitmain Antminer S9i (14Th) 96% better efficacité (2,447.9 vs 94.3 J/TH)
- Antminer D7 100% better weight (14.4 vs 4,200.0 kg)
- Antminer D7 138% more heat output (10,741 vs 4,504 BTU/hr)
- Antminer D7 16% more score de minage domestique (36.0 vs 31.0)
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 D7 | Metric | Bitmain Antminer S9i (14Th) |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $65 |
| -$7.51 | Daily net profit | -$2.66 |
| -$5,241 | Net after 1 year | -$1,037 |
| -$7,982 | Net after 2 years | -$2,010 |
| -$10,722 | Net after 3 years | -$2,982 |
| 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 D7Score: 36/100. 70 dB noise level.
Best for Efficiency
Bitmain Antminer S9i (14Th)94.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer D7 vs Bitmain Antminer S9i (14Th): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9i (14Th) is more profitable at $-2.66/day compared to $-7.51/day for the Antminer D7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer D7 or Bitmain Antminer S9i (14Th)?
The Antminer D7 is quieter at 70 dB compared to the Bitmain Antminer S9i (14Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer D7 or Bitmain Antminer S9i (14Th)?
The Antminer D7 scores 36/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9i (14Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer D7 and Bitmain Antminer S9i (14Th)?
The Antminer D7 runs at 2,447.9 J/TH while the Bitmain Antminer S9i (14Th) runs at 94.3 J/TH — a difference of 2,353.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 96% better efficacité (2,447.9 vs 94.3 J/TH).