Bitmain Antminer S21 Hyd (335Th) vs Canaan Avalon A15-194T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Hyd (335Th) | Specification | Canaan Avalon A15-194T |
|---|---|---|
| 335.0 TH/s | Hashrate | 194.0 TH/s |
| 5,360 W | Power Consumption | 3,647 W |
| 16.0 J/TH | Efficiency | 18.8 J/TH |
| — | Noise Level | 75 dB |
| 14.2 kg | Weight | 12.8 kg |
| 18,288 BTU/hr | BTU Output | 12,444 BTU/hr |
| 16/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21 Hyd (335Th)
Canaan Avalon A15-194T
Based on BTC price of $79,032 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21 Hyd (335Th), which leads on 3 of 6 weighted factors (efficiency, hashrate, price-performance). Its biggest concrete edge: 73% more hashrate (335 vs 194 TH/s). The Canaan Avalon A15-194T holds the edge in power consumption and home mining score and noise level. 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 Bitmain Antminer S21 Hyd (335Th) and Canaan Avalon A15-194T actually differ, with the gap quantified:
- Bitmain Antminer S21 Hyd (335Th) 73% more hashrate (335 vs 194 TH/s)
- Canaan Avalon A15-194T 32% better power draw (5,360 vs 3,647 W)
- Bitmain Antminer S21 Hyd (335Th) 15% better efficiency (16.0 vs 18.8 J/TH)
- Canaan Avalon A15-194T 10% better weight (14.2 vs 12.8 kg)
- Bitmain Antminer S21 Hyd (335Th) 47% more heat output (18,288 vs 12,444 BTU/hr)
- Canaan Avalon A15-194T 88% more home mining score (16.0 vs 30.0)
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.
| Bitmain Antminer S21 Hyd (335Th) | Metric | Canaan Avalon A15-194T |
|---|---|---|
| $3,999 | Upfront cost (MSRP) | $2,749 |
| -$0.68 | Daily net profit | -$1.70 |
| -$4,247 | Net after 1 year | -$3,368 |
| -$4,496 | Net after 2 years | -$3,988 |
| -$4,744 | Net after 3 years | -$4,607 |
| 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
Canaan Avalon A15-194TScore: 30/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Hyd (335Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 Hyd (335Th) or Canaan Avalon A15-194T more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Hyd (335Th) is more profitable at $-0.68/day compared to $-1.70/day for the Canaan Avalon A15-194T. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21 Hyd (335Th) or the Canaan Avalon A15-194T better for noise-sensitive spaces?
The Canaan Avalon A15-194T is quieter at 75 dB compared to the Bitmain Antminer S21 Hyd (335Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S21 Hyd (335Th) or the Canaan Avalon A15-194T?
The Canaan Avalon A15-194T scores 30/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S21 Hyd (335Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S21 Hyd (335Th) and Canaan Avalon A15-194T on J/TH?
The Bitmain Antminer S21 Hyd (335Th) runs at 16.0 J/TH while the Canaan Avalon A15-194T runs at 18.8 J/TH — a difference of 2.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 15% better efficiency (16.0 vs 18.8 J/TH).