ASIC miner comparison

Antminer S21e Hydro (332TH/s) vs Antminer A3 (815GH/s)

Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.

Antminer S21e Hydro (332TH/s)
VS
Antminer A3 (815GH/s)
Higher hashrate
S21
Better efficiency
A3
Estimated net daily
S21
Hosted power rate
$0.060/kWh

Option 1

Antminer S21e Hydro (332TH/s)

50 available
Antminer S21e Hydro (332TH/s)
Price
$1,654.46
ROI
17 mo
Hashrate
332 TH/s
Net daily
$3.16
Open product page

Option 2

Antminer A3 (815GH/s)

Ask availability
Antminer A3 (815GH/s)
Price
N/A
ROI
N/A
Hashrate
815 GH/s
Net daily
-$1.66
Open product page

Antminer A3 (815GH/s) leads this comparison

Antminer A3 (815GH/s) comes out ahead on more buyer-facing signals here. Antminer S21e Hydro (332TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.

S21
3
metric wins
A3
4
metric wins

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.

FeatureAntminer S21e Hydro (332TH/s)Antminer A3 (815GH/s)Advantage
Brand
Antminer
Antminer
Contextual
Model
S21
A3
Contextual
Hashrate
332 TH/s
Best
815 GH/s
Antminer S21e Hydro (332TH/s)
Power Consumption
5644W
1275W
Best
Antminer A3 (815GH/s)
Efficiency
17.00 J/TH
1.56 J/GH
Best
Antminer A3 (815GH/s)
Daily energy use
135.5 kWh
30.6 kWh
Best
Antminer A3 (815GH/s)
Net Daily Profit (Est.)
$3.16
Best
-$1.66
Antminer S21e Hydro (332TH/s)
Monthly Profit (Est.)
$94.75
Best
-$49.68
Antminer S21e Hydro (332TH/s)
Price
$1,654.46
N/A
Contextual
Estimated ROI
17 mo
N/A
Contextual
Cooling
HYDRO
AIR
Contextual
Dimensions
410 x 209 x 170 mm
125 x 321 x 208 mm
Contextual
Weight
17000 g
4200 g
Best
Antminer A3 (815GH/s)

Performance

Antminer S21e Hydro (332TH/s) has the hashrate edge for raw output potential.

Efficiency

Antminer A3 (815GH/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 S21e Hydro (332TH/s) or Antminer A3 (815GH/s)?

Antminer S21e Hydro (332TH/s) has a higher hashrate of 332 TH/s compared to Antminer A3 (815GH/s)'s 815 GH/s.

Is Antminer S21e Hydro (332TH/s) more efficient than Antminer A3 (815GH/s)?

Antminer A3 (815GH/s) is more energy efficient at 1.56 J/GH.

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

Curious? Let’s connect to answer your questions.