Bitmain Antminer S9k (13.5Th) vs NerdQAxe++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9k (13.5Th) | Specification | NerdQAxe++ |
|---|---|---|
| 13.5 TH/s | Taux de hachage | 4.0 TH/s |
| 1,310 W | Consommation électrique | 120 W |
| 97.0 J/TH | Efficiency | 30.0 J/TH |
| — | Niveau de bruit | 42 dB |
| 4.2 kg | Weight | 0.5 kg |
| 4,470 BTU/hr | BTU Output | 409 BTU/hr |
| 31/100 | Home Mining Score | 58/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S9k (13.5Th)
NerdQAxe++
Based on BTC price of $62,527 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Weighing six performance factors, the NerdQAxe++ comes out ahead — it takes 4 of 6 (efficacité, consommation électrique, score de minage domestique, niveau sonore). Where it pulls away hardest is 91% better power draw (1,310 vs 120 W). The Bitmain Antminer S9k (13.5Th) claws back ground on hashrate and rapport qualité-prix. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S9k (13.5Th) and NerdQAxe++ sit on each measurable spec:
- Bitmain Antminer S9k (13.5Th) 238% more hashrate (13.5 vs 4.0 TH/s)
- NerdQAxe++ 91% better power draw (1,310 vs 120 W)
- NerdQAxe++ 69% better efficacité (97.0 vs 30.0 J/TH)
- NerdQAxe++ 88% better weight (4.2 vs 0.5 kg)
- Bitmain Antminer S9k (13.5Th) 992% more heat output (4,470 vs 409 BTU/hr)
- NerdQAxe++ 87% more score de minage domestique (31.0 vs 58.0)
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 S9k (13.5Th) | Metric | NerdQAxe++ |
|---|---|---|
| $600 | Upfront cost (MSRP) | $349 |
| -$2.76 | Daily net profit | -$0.17 |
| -$1,608 | Net after 1 year | -$413 |
| -$2,616 | Net after 2 years | -$477 |
| -$3,625 | Net after 3 years | -$540 |
| 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
NerdQAxe++Score: 58/100. 42 dB noise level.
Best for Efficiency
NerdQAxe++30.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9k (13.5Th) or NerdQAxe++ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdQAxe++ is more profitable at $-0.17/day compared to $-2.76/day for the Bitmain Antminer S9k (13.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S9k (13.5Th) or the NerdQAxe++ better for noise-sensitive spaces?
The NerdQAxe++ is quieter at 42 dB compared to the Bitmain Antminer S9k (13.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S9k (13.5Th) or the NerdQAxe++?
The NerdQAxe++ scores 58/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9k (13.5Th)). 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 S9k (13.5Th) and NerdQAxe++ on J/TH?
The Bitmain Antminer S9k (13.5Th) runs at 97.0 J/TH while the NerdQAxe++ runs at 30.0 J/TH — a difference of 67.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 69% better efficacité (97.0 vs 30.0 J/TH).