Antminer S9j vs Canaan Avalon A15Pro-218T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9j | Specification | Canaan Avalon A15Pro-218T |
|---|---|---|
| 14.5 TH/s | Hashrate | 218.0 TH/s |
| 1,350 W | Power Consumption | 3,662 W |
| 93.1 J/TH | Efficiency | 16.8 J/TH |
| 76 dB | Noise Level | 75 dB |
| 4.2 kg | Weight | 14.9 kg |
| 4,606 BTU/hr | BTU Output | 12,495 BTU/hr |
| 83/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer S9j
Canaan Avalon A15Pro-218T
Based on BTC price of $79,143 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Canaan Avalon A15Pro-218T edges it: 3 of 5 factors go its way (efficiency, hashrate, noise level). The standout gap is 1403% more hashrate (14.5 vs 218.0 TH/s) in the Canaan Avalon A15Pro-218T's favour. That said, the Antminer S9j isn't beaten everywhere — it still wins power consumption and home mining score. 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 Antminer S9j and Canaan Avalon A15Pro-218T sit on each measurable spec:
- Canaan Avalon A15Pro-218T 1403% more hashrate (14.5 vs 218.0 TH/s)
- Antminer S9j 63% better power draw (1,350 vs 3,662 W)
- Canaan Avalon A15Pro-218T 82% better efficiency (93.1 vs 16.8 J/TH)
- Canaan Avalon A15Pro-218T 1% better noise (76.0 vs 75.0 dB)
- Antminer S9j 72% better weight (4.2 vs 14.9 kg)
- Canaan Avalon A15Pro-218T 171% more heat output (4,606 vs 12,495 BTU/hr)
- Antminer S9j 177% more home mining score (83.0 vs 30.0)
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 S9j | Metric | Canaan Avalon A15Pro-218T |
|---|---|---|
| — | Upfront cost (MSRP) | $2,525 |
| -$2.71 | Daily net profit | -$0.85 |
| -$990 | Net after 1 year | -$2,835 |
| -$1,980 | Net after 2 years | -$3,145 |
| -$2,970 | Net after 3 years | -$3,455 |
| — | 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 S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
Canaan Avalon A15Pro-218T16.8 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S9j vs Canaan Avalon A15Pro-218T: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan Avalon A15Pro-218T is more profitable at $-0.85/day compared to $-2.71/day for the Antminer S9j. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9j or Canaan Avalon A15Pro-218T?
The Canaan Avalon A15Pro-218T is quieter at 75 dB compared to the Antminer S9j at 76 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer S9j or the Canaan Avalon A15Pro-218T?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 30/100 for the Canaan Avalon A15Pro-218T). 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 Antminer S9j and Canaan Avalon A15Pro-218T?
The Antminer S9j runs at 93.1 J/TH while the Canaan Avalon A15Pro-218T runs at 16.8 J/TH — a difference of 76.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 82% better efficiency (93.1 vs 16.8 J/TH).