Bitmain Antminer S9i (14Th) vs Bitmain Antminer T15 (23Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9i (14Th) | Specification | Bitmain Antminer T15 (23Th) |
|---|---|---|
| 14.0 TH/s | Hashrate | 23.0 TH/s |
| 1,320 W | Power Consumption | 1,541 W |
| 94.3 J/TH | Efficiency | 67.0 J/TH |
| — | Noise Level | — |
| 4,200.0 kg | Weight | 6,600.0 kg |
| 4,504 BTU/hr | BTU Output | 5,258 BTU/hr |
| 31/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S9i (14Th)
Bitmain Antminer T15 (23Th)
Based on BTC price of $79,091 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer T15 (23Th) comes out ahead — it takes 2 of 4 (efficiency, hashrate). The standout gap is 64% more hashrate (14.0 vs 23.0 TH/s) in the Bitmain Antminer T15 (23Th)'s favour. The Bitmain Antminer S9i (14Th) claws back ground on power consumption and home mining score. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Bitmain Antminer S9i (14Th) and Bitmain Antminer T15 (23Th) actually differ, with the gap quantified:
- Bitmain Antminer T15 (23Th) 64% more hashrate (14.0 vs 23.0 TH/s)
- Bitmain Antminer S9i (14Th) 14% better power draw (1,320 vs 1,541 W)
- Bitmain Antminer T15 (23Th) 29% better efficiency (94.3 vs 67.0 J/TH)
- Bitmain Antminer S9i (14Th) 36% better weight (4,200 vs 6,600 kg)
- Bitmain Antminer T15 (23Th) 17% more heat output (4,504 vs 5,258 BTU/hr)
- Bitmain Antminer S9i (14Th) 11% more home mining score (31.0 vs 28.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S9i (14Th) | Metric | Bitmain Antminer T15 (23Th) |
|---|---|---|
| $65 | Upfront cost (MSRP) | — |
| -$2.66 | Daily net profit | -$2.86 |
| -$1,035 | Net after 1 year | -$1,044 |
| -$2,006 | Net after 2 years | -$2,089 |
| -$2,976 | Net after 3 years | -$3,133 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
Bitmain Antminer S9i (14Th)Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer T15 (23Th)67.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S9i (14Th) or the Bitmain Antminer T15 (23Th)?
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 $-2.86/day for the Bitmain Antminer T15 (23Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S9i (14Th) vs Bitmain Antminer T15 (23Th): 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 Bitmain Antminer S9i (14Th) or the Bitmain Antminer T15 (23Th)?
The Bitmain Antminer S9i (14Th) scores 31/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer T15 (23Th)). 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 Bitmain Antminer S9i (14Th) and Bitmain Antminer T15 (23Th)?
The Bitmain Antminer S9i (14Th) runs at 94.3 J/TH while the Bitmain Antminer T15 (23Th) runs at 67.0 J/TH — a difference of 27.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 29% better efficiency (94.3 vs 67.0 J/TH).