Bitmain Antminer S9k (13.5Th) vs Bitmain Antminer T9 (11.5Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9k (13.5Th) | Specification | Bitmain Antminer T9 (11.5Th) |
|---|---|---|
| 13.5 TH/s | Hashrate | 11.5 TH/s |
| 1,310 W | Power Consumption | 1,450 W |
| 97.0 J/TH | Efficiency | 126.1 J/TH |
| — | Noise Level | — |
| 4,200.0 kg | Weight | 3,800.0 kg |
| 4,470 BTU/hr | BTU Output | 4,947 BTU/hr |
| 31/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S9k (13.5Th)
Bitmain Antminer T9 (11.5Th)
Based on BTC price of $79,088 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S9k (13.5Th), which leads on 4 of 4 weighted factors (efficiency, hashrate, power consumption, price-performance). Its biggest concrete edge: 23% better efficiency (97.0 vs 126.1 J/TH). 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 Bitmain Antminer S9k (13.5Th) and Bitmain Antminer T9 (11.5Th) actually differ, with the gap quantified:
- Bitmain Antminer S9k (13.5Th) 17% more hashrate (13.5 vs 11.5 TH/s)
- Bitmain Antminer S9k (13.5Th) 10% better power draw (1,310 vs 1,450 W)
- Bitmain Antminer S9k (13.5Th) 23% better efficiency (97.0 vs 126.1 J/TH)
- Bitmain Antminer T9 (11.5Th) 10% better weight (4,200 vs 3,800 kg)
- Bitmain Antminer T9 (11.5Th) 11% more heat output (4,470 vs 4,947 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.
| Bitmain Antminer S9k (13.5Th) | Metric | Bitmain Antminer T9 (11.5Th) |
|---|---|---|
| $600 | Upfront cost (MSRP) | $955 |
| -$2.65 | Daily net profit | -$3.06 |
| -$1,568 | Net after 1 year | -$2,072 |
| -$2,536 | Net after 2 years | -$3,190 |
| -$3,505 | Net after 3 years | -$4,307 |
| 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 S9k (13.5Th)97.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9k (13.5Th) or Bitmain Antminer T9 (11.5Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9k (13.5Th) is more profitable at $-2.65/day compared to $-3.06/day for the Bitmain Antminer T9 (11.5Th). 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 Bitmain Antminer T9 (11.5Th) better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer S9k (13.5Th) or Bitmain Antminer T9 (11.5Th)?
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 S9k (13.5Th) and Bitmain Antminer T9 (11.5Th)?
The Bitmain Antminer S9k (13.5Th) runs at 97.0 J/TH while the Bitmain Antminer T9 (11.5Th) runs at 126.1 J/TH — a difference of 29.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 23% better efficiency (97.0 vs 126.1 J/TH).