Antminer S9i vs Canaan Avalon Mini 3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9i | Specification | Canaan Avalon Mini 3 |
|---|---|---|
| 14.0 TH/s | Hashrate | 37.5 TH/s |
| 1,320 W | Power Consumption | 800 W |
| 94.3 J/TH | Efficiency | 21.3 J/TH |
| 76 dB | Noise Level | 33 dB |
| 4.2 kg | Weight | 8.4 kg |
| 4,504 BTU/hr | BTU Output | 2,730 BTU/hr |
| 83/100 | Home Mining Score | 65/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer S9i
Canaan Avalon Mini 3
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Canaan Avalon Mini 3 wins on 4 of 5 factors (efficiency, hashrate, power consumption, noise level). The standout gap is 77% better efficiency (94.3 vs 21.3 J/TH) in the Canaan Avalon Mini 3's favour. That said, the Antminer S9i isn't beaten everywhere — it still wins home mining score. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer S9i and Canaan Avalon Mini 3 sit on each measurable spec:
- Canaan Avalon Mini 3 168% more hashrate (14.0 vs 37.5 TH/s)
- Canaan Avalon Mini 3 39% better power draw (1,320 vs 800 W)
- Canaan Avalon Mini 3 77% better efficiency (94.3 vs 21.3 J/TH)
- Canaan Avalon Mini 3 57% better noise (76.0 vs 33.0 dB)
- Antminer S9i 50% better weight (4.2 vs 8.4 kg)
- Antminer S9i 65% more heat output (4,504 vs 2,730 BTU/hr)
- Antminer S9i 28% more home mining score (83.0 vs 65.0)
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 S9i | Metric | Canaan Avalon Mini 3 |
|---|---|---|
| — | Upfront cost (MSRP) | $710 |
| -$2.66 | Daily net profit | -$0.56 |
| -$970 | Net after 1 year | -$913 |
| -$1,941 | Net after 2 years | -$1,116 |
| -$2,911 | Net after 3 years | -$1,319 |
| — | 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 S9iScore: 83/100. 76 dB noise level.
Best for Efficiency
Canaan Avalon Mini 321.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S9i vs Canaan Avalon Mini 3: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan Avalon Mini 3 is more profitable at $-0.56/day compared to $-2.66/day for the Antminer S9i. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9i or Canaan Avalon Mini 3?
The Canaan Avalon Mini 3 is quieter at 33 dB compared to the Antminer S9i at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S9i vs Canaan Avalon Mini 3: which fits a residential setup better?
The Antminer S9i scores 83/100 on our Home Mining Score (vs 65/100 for the Canaan Avalon Mini 3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Antminer S9i and Canaan Avalon Mini 3 on J/TH?
The Antminer S9i runs at 94.3 J/TH while the Canaan Avalon Mini 3 runs at 21.3 J/TH — a difference of 73.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 77% better efficiency (94.3 vs 21.3 J/TH).