Antminer S19 Pro+ vs Canaan AvalonMiner 921
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19 Pro+ | Specification | Canaan AvalonMiner 921 |
|---|---|---|
| 120.0 TH/s | Hashrate | 20.0 TH/s |
| 3,360 W | Power Consumption | 1,700 W |
| 28.0 J/TH | Efficiency | 85.0 J/TH |
| 75 dB | Noise Level | — |
| 14.4 kg | Weight | — |
| 11,464 BTU/hr | BTU Output | 5,800 BTU/hr |
| 84/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Antminer S19 Pro+
Canaan AvalonMiner 921
Based on BTC price of $79,271 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Antminer S19 Pro+, which leads on 4 of 5 weighted factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 500% more hashrate (120.0 vs 20.0 TH/s). The Canaan AvalonMiner 921 claws back ground on power consumption. 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 S19 Pro+ and Canaan AvalonMiner 921 sit on each measurable spec:
- Antminer S19 Pro+ 500% more hashrate (120.0 vs 20.0 TH/s)
- Canaan AvalonMiner 921 49% better power draw (3,360 vs 1,700 W)
- Antminer S19 Pro+ 67% better efficiency (28.0 vs 85.0 J/TH)
- Antminer S19 Pro+ 98% more heat output (11,464 vs 5,800 BTU/hr)
- Antminer S19 Pro+ 200% more home mining score (84.0 vs 28.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Antminer S19 Pro+ | Metric | Canaan AvalonMiner 921 |
|---|---|---|
| $3,000 | Upfront cost (MSRP) | — |
| -$3.69 | Daily net profit | -$3.35 |
| -$4,346 | Net after 1 year | -$1,223 |
| -$5,691 | Net after 2 years | -$2,446 |
| -$7,037 | Net after 3 years | -$3,669 |
| 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
Antminer S19 Pro+Score: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S19 Pro+28.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S19 Pro+ or the Canaan AvalonMiner 921?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan AvalonMiner 921 is more profitable at $-3.35/day compared to $-3.69/day for the Antminer S19 Pro+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer S19 Pro+ vs Canaan AvalonMiner 921: which runs at a lower noise level?
The Antminer S19 Pro+ is quieter at 75 dB compared to the Canaan AvalonMiner 921 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S19 Pro+ vs Canaan AvalonMiner 921: which fits a residential setup better?
The Antminer S19 Pro+ scores 84/100 on our Home Mining Score (vs 28/100 for the Canaan AvalonMiner 921). 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 S19 Pro+ and Canaan AvalonMiner 921?
The Antminer S19 Pro+ runs at 28.0 J/TH while the Canaan AvalonMiner 921 runs at 85.0 J/TH — a difference of 57.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 67% better efficiency (28.0 vs 85.0 J/TH).