AvalonMiner 821 (11.5TH/s) vs Antminer S21+ Hydro (358MH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
AvalonMiner 821 (11.5TH/s)
Option 2
Antminer S21+ Hydro (358MH/s)
Antminer S21+ Hydro (358MH/s) leads this comparison
Antminer S21+ Hydro (358MH/s) comes out ahead on more buyer-facing signals here. AvalonMiner 821 (11.5TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.
Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | AvalonMiner 821 (11.5TH/s) | Antminer S21+ Hydro (358MH/s) | Advantage |
|---|---|---|---|
| Brand | AvalonMiner | N/A | Contextual |
| Model | A8 | N/A | Contextual |
| Hashrate | 11.5 TH/s Best | 358 MH/s | AvalonMiner 821 (11.5TH/s) |
| Power Consumption | 1200W | 0W Best | Antminer S21+ Hydro (358MH/s) |
| Efficiency | 104.35 J/TH | N/A | Contextual |
| Daily energy use | 28.8 kWh | 0.0 kWh Best | Antminer S21+ Hydro (358MH/s) |
| Net Daily Profit (Est.) | -$1.36 | $12.94 Best | Antminer S21+ Hydro (358MH/s) |
| Monthly Profit (Est.) | -$40.74 | $388.24 Best | Antminer S21+ Hydro (358MH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | HYDRO | Contextual |
| Dimensions | 150 x 370 x 136 mm | 410 x 209 x 170 mm | Contextual |
| Weight | 4700 g | N/A | Contextual |
Performance
AvalonMiner 821 (11.5TH/s) has the hashrate edge for raw output potential.
Efficiency
Efficiency data is not available for this comparison.
Buying decision
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
Frequently asked questions
Which is more powerful: AvalonMiner 821 (11.5TH/s) or Antminer S21+ Hydro (358MH/s)?
AvalonMiner 821 (11.5TH/s) has a higher hashrate of 11.5 TH/s compared to Antminer S21+ Hydro (358MH/s)'s 358 MH/s.
Is AvalonMiner 821 (11.5TH/s) more efficient than Antminer S21+ Hydro (358MH/s)?
Efficiency data is not available for this comparison.
Which miner has the better estimated ROI?
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
Every Day You Wait is Revenue You Lose
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