AvalonMiner 821 (11.5TH/s) vs A4 Dominator (280MH/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
A4 Dominator (280MH/s)
AvalonMiner 821 (11.5TH/s) leads this comparison
AvalonMiner 821 (11.5TH/s) comes out ahead on more buyer-facing signals here. A4 Dominator (280MH/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) | A4 Dominator (280MH/s) | Advantage |
|---|---|---|---|
| Brand | AvalonMiner | Innosilicon | Contextual |
| Model | A8 | A4 | Contextual |
| Hashrate | 11.5 TH/s Best | 280 MH/s | AvalonMiner 821 (11.5TH/s) |
| Power Consumption | 1200W | 1050W Best | A4 Dominator (280MH/s) |
| Efficiency | 104.35 J/TH | 3.75 J/MH Best | A4 Dominator (280MH/s) |
| Daily energy use | 28.8 kWh | 25.2 kWh Best | A4 Dominator (280MH/s) |
| Net Daily Profit (Est.) | -$1.36 Best | -$1.40 | AvalonMiner 821 (11.5TH/s) |
| Monthly Profit (Est.) | -$40.74 Best | -$42.06 | AvalonMiner 821 (11.5TH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 150 x 370 x 136 mm | 260 x 280 x 130 mm | Contextual |
| Weight | 4700 g Best | 9200 g | AvalonMiner 821 (11.5TH/s) |
Performance
AvalonMiner 821 (11.5TH/s) has the hashrate edge for raw output potential.
Efficiency
A4 Dominator (280MH/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: AvalonMiner 821 (11.5TH/s) or A4 Dominator (280MH/s)?
AvalonMiner 821 (11.5TH/s) has a higher hashrate of 11.5 TH/s compared to A4 Dominator (280MH/s)'s 280 MH/s.
Is AvalonMiner 821 (11.5TH/s) more efficient than A4 Dominator (280MH/s)?
A4 Dominator (280MH/s) is more energy efficient at 3.75 J/MH.
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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