Antminer S9j (14.5TH/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
Antminer S9j (14.5TH/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. Antminer S9j (14.5TH/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 | Antminer S9j (14.5TH/s) | AvalonMiner 821 (11.5TH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | AvalonMiner | Contextual |
| Model | S9 | A8 | Contextual |
| Hashrate | 14.5 TH/s Best | 11.5 TH/s | Antminer S9j (14.5TH/s) |
| Power Consumption | 1350W | 1200W Best | AvalonMiner 821 (11.5TH/s) |
| Efficiency | 93.10 J/TH Best | 104.35 J/TH | Antminer S9j (14.5TH/s) |
| Daily energy use | 32.4 kWh | 28.8 kWh Best | AvalonMiner 821 (11.5TH/s) |
| Net Daily Profit (Est.) | -$1.48 | -$1.36 Best | AvalonMiner 821 (11.5TH/s) |
| Monthly Profit (Est.) | -$44.52 | -$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 | 135 x 350 x 158 mm | 150 x 370 x 136 mm | Contextual |
| Weight | 4200 g Best | 4700 g | Antminer S9j (14.5TH/s) |
Performance
Antminer S9j (14.5TH/s) has the hashrate edge for raw output potential.
Efficiency
Antminer S9j (14.5TH/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: Antminer S9j (14.5TH/s) or AvalonMiner 821 (11.5TH/s)?
Antminer S9j (14.5TH/s) has a higher hashrate of 14.5 TH/s compared to AvalonMiner 821 (11.5TH/s)'s 11.5 TH/s.
Is Antminer S9j (14.5TH/s) more efficient than AvalonMiner 821 (11.5TH/s)?
Yes, Antminer S9j (14.5TH/s) is more energy efficient at 93.10 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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