Whatsminer M21S (56TH/s) vs AvalonMiner 821 (11.5TH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Whatsminer M21S (56TH/s)
Option 2
AvalonMiner 821 (11.5TH/s)
AvalonMiner 821 (11.5TH/s) leads this comparison
AvalonMiner 821 (11.5TH/s) comes out ahead on more buyer-facing signals here. Whatsminer M21S (56TH/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 | Whatsminer M21S (56TH/s) | AvalonMiner 821 (11.5TH/s) | Advantage |
|---|---|---|---|
| Brand | MicroBT | AvalonMiner | Contextual |
| Model | M21 | A8 | Contextual |
| Hashrate | 56 TH/s Best | 11.5 TH/s | Whatsminer M21S (56TH/s) |
| Power Consumption | 3360W | 1200W Best | AvalonMiner 821 (11.5TH/s) |
| Efficiency | 60.00 J/TH Best | 104.35 J/TH | Whatsminer M21S (56TH/s) |
| Daily energy use | 80.6 kWh | 28.8 kWh Best | AvalonMiner 821 (11.5TH/s) |
| Net Daily Profit (Est.) | -$3.03 | -$1.36 Best | AvalonMiner 821 (11.5TH/s) |
| Monthly Profit (Est.) | -$90.85 | -$40.74 Best | AvalonMiner 821 (11.5TH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 155 x 390 x 240 mm | 150 x 370 x 136 mm | Contextual |
| Weight | 12500 g | 4700 g Best | AvalonMiner 821 (11.5TH/s) |
Performance
Whatsminer M21S (56TH/s) has the hashrate edge for raw output potential.
Efficiency
Whatsminer M21S (56TH/s) is stronger when comparing joules per hash unit.
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: Whatsminer M21S (56TH/s) or AvalonMiner 821 (11.5TH/s)?
Whatsminer M21S (56TH/s) has a higher hashrate of 56 TH/s compared to AvalonMiner 821 (11.5TH/s)'s 11.5 TH/s.
Is Whatsminer M21S (56TH/s) more efficient than AvalonMiner 821 (11.5TH/s)?
Yes, Whatsminer M21S (56TH/s) is more energy efficient at 60.00 J/TH.
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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