Canaan AvalonMiner 821 vs NerdOctaxe Gamma
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Canaan AvalonMiner 821 | Specification | NerdOctaxe Gamma |
|---|---|---|
| 11.5 TH/s | Taux de hachage | 8.0 TH/s |
| 1,200 W | Consommation électrique | 200 W |
| 104.4 J/TH | Efficiency | 25.0 J/TH |
| — | Niveau de bruit | 45 dB |
| 4,700.0 kg | Weight | 0.8 kg |
| 4,094 BTU/hr | BTU Output | 682 BTU/hr |
| 31/100 | Home Mining Score | 61/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Canaan | Manufacturer | D-Central |
Profitability Comparison
Canaan AvalonMiner 821
NerdOctaxe Gamma
Based on BTC price of $78,175 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the NerdOctaxe Gamma comes out ahead — it takes 4 of 6 (efficacité, consommation électrique, score de minage domestique, niveau sonore). The standout gap is 83% better power draw (1,200 vs 200 W) in the NerdOctaxe Gamma's favour. That said, the Canaan AvalonMiner 821 isn't beaten everywhere — it still wins hashrate and rapport qualité-prix. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Canaan AvalonMiner 821 and NerdOctaxe Gamma actually differ, with the gap quantified:
- Canaan AvalonMiner 821 44% more hashrate (11.5 vs 8.0 TH/s)
- NerdOctaxe Gamma 83% better power draw (1,200 vs 200 W)
- NerdOctaxe Gamma 76% better efficacité (104.4 vs 25.0 J/TH)
- NerdOctaxe Gamma 100% better weight (4,700.0 vs 0.8 kg)
- Canaan AvalonMiner 821 500% more heat output (4,094 vs 682 BTU/hr)
- NerdOctaxe Gamma 97% more score de minage domestique (31.0 vs 61.0)
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 821 | Metric | NerdOctaxe Gamma |
|---|---|---|
| $699 | Upfront cost (MSRP) | $599 |
| -$2.47 | Daily net profit | -$0.19 |
| -$1,599 | Net after 1 year | -$669 |
| -$2,499 | Net after 2 years | -$739 |
| -$3,400 | Net after 3 years | -$809 |
| Does not pay back at current rates (negative daily profit) | 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
NerdOctaxe GammaScore: 61/100. 45 dB noise level.
Best for Efficiency
NerdOctaxe Gamma25.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Canaan AvalonMiner 821 or the NerdOctaxe Gamma?
At the current BTC price and a $0.10/kWh electricity rate, the NerdOctaxe Gamma is more profitable at $-0.19/day compared to $-2.47/day for the Canaan AvalonMiner 821. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Canaan AvalonMiner 821 or the NerdOctaxe Gamma better for noise-sensitive spaces?
The NerdOctaxe Gamma is quieter at 45 dB compared to the Canaan AvalonMiner 821 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 821 or the NerdOctaxe Gamma?
The NerdOctaxe Gamma scores 61/100 on our Home Mining Score (vs 31/100 for the Canaan AvalonMiner 821). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Canaan AvalonMiner 821 and NerdOctaxe Gamma on J/TH?
The Canaan AvalonMiner 821 runs at 104.4 J/TH while the NerdOctaxe Gamma runs at 25.0 J/TH — a difference of 79.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 76% better efficacité (104.4 vs 25.0 J/TH).