Canaan AvalonMiner 921 vs Whatsminer M30S++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 921 | Specification | Whatsminer M30S++ |
|---|---|---|
| 20.0 TH/s | Taux de hachage | 112.0 TH/s |
| 1,700 W | Consommation électrique | 3,472 W |
| 85.0 J/TH | Efficiency | 31.0 J/TH |
| — | Niveau de bruit | 75 dB |
| — | Weight | 12.0 kg |
| 5,800 BTU/hr | BTU Output | 11,847 BTU/hr |
| 28/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Canaan | Manufacturer | MicroBT |
Profitability Comparison
Canaan AvalonMiner 921
Whatsminer M30S++
Based on BTC price of $63,093 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Whatsminer M30S++, which leads on 4 of 5 weighted factors (efficacité, hashrate, score de minage domestique, niveau sonore). Where it pulls away hardest is 460% more hashrate (20.0 vs 112.0 TH/s). The Canaan AvalonMiner 921 holds the edge in consommation électrique. Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
The Canaan AvalonMiner 921 and Whatsminer M30S++ diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Whatsminer M30S++ 460% more hashrate (20.0 vs 112.0 TH/s)
- Canaan AvalonMiner 921 51% better power draw (1,700 vs 3,472 W)
- Whatsminer M30S++ 64% better efficacité (85.0 vs 31.0 J/TH)
- Whatsminer M30S++ 104% more heat output (5,800 vs 11,847 BTU/hr)
- Whatsminer M30S++ 29% more score de minage domestique (28.0 vs 36.0)
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.
| Canaan AvalonMiner 921 | Metric | Whatsminer M30S++ |
|---|---|---|
| — | Upfront cost (MSRP) | $2,300 |
| -$3.51 | Daily net profit | -$5.14 |
| -$1,281 | Net after 1 year | -$4,175 |
| -$2,562 | Net after 2 years | -$6,049 |
| -$3,842 | Net after 3 years | -$7,924 |
| — | 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
Whatsminer M30S++Score: 36/100. 75 dB noise level.
Best for Efficiency
Whatsminer M30S++31.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Canaan AvalonMiner 921 vs Whatsminer M30S++: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan AvalonMiner 921 is more profitable at $-3.51/day compared to $-5.14/day for the Whatsminer M30S++. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Canaan AvalonMiner 921 or Whatsminer M30S++?
The Whatsminer M30S++ 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.
For mining at home, should I pick the Canaan AvalonMiner 921 or the Whatsminer M30S++?
The Whatsminer M30S++ scores 36/100 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.
Canaan AvalonMiner 921 vs Whatsminer M30S++: how much does the efficiency gap matter?
The Canaan AvalonMiner 921 runs at 85.0 J/TH while the Whatsminer M30S++ runs at 31.0 J/TH — a difference of 54.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 64% better efficacité (85.0 vs 31.0 J/TH).