Bitmain Antminer S9 (11.5Th) vs Bitmain Antminer S9k (13.5Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9 (11.5Th) | Specification | Bitmain Antminer S9k (13.5Th) |
|---|---|---|
| 11.5 TH/s | Hashrate | 13.5 TH/s |
| 1,127 W | Power Consumption | 1,310 W |
| 98.0 J/TH | Efficiency | 97.0 J/TH |
| — | Noise Level | — |
| 4,200.0 kg | Weight | 4,200.0 kg |
| 3,845 BTU/hr | BTU Output | 4,470 BTU/hr |
| 31/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S9 (11.5Th)
Bitmain Antminer S9k (13.5Th)
Based on BTC price of $66,283 and current network difficulty as of Mar 29, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S9k (13.5Th) wins on 2 of 4 factors (efficiency, hashrate). The Bitmain Antminer S9 (11.5Th) holds the edge in power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
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 S9k (13.5Th)97.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9 (11.5Th) or Bitmain Antminer S9k (13.5Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9 (11.5Th) is more profitable at $-2.35/day compared to $-2.72/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.
Which is quieter, the Bitmain Antminer S9 (11.5Th) or Bitmain Antminer S9k (13.5Th)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer S9 (11.5Th) or Bitmain Antminer S9k (13.5Th)?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Bitmain Antminer S9 (11.5Th) and Bitmain Antminer S9k (13.5Th)?
The Bitmain Antminer S9 (11.5Th) runs at 98.0 J/TH while the Bitmain Antminer S9k (13.5Th) runs at 97.0 J/TH — a difference of 1.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.