ASIC miner comparison

Antminer K7 (63.5TH/s) vs Whatsminer M21S (56MH/s)

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

Antminer K7 (63.5TH/s)
VS
Whatsminer M21S (56MH/s)
Higher hashrate
K7
Better efficiency
N/A
Estimated net daily
Whatsminer M21S
Hosted power rate
$0.060/kWh

Option 1

Antminer K7 (63.5TH/s)

100 available
Antminer K7 (63.5TH/s)
Price
$1,727.88
ROI
47 mo
Hashrate
63.5 TH/s
Net daily
$1.21
Open product page

Option 2

Whatsminer M21S (56MH/s)

Ask availability
Whatsminer M21S (56MH/s)
Price
N/A
ROI
N/A
Hashrate
56 MH/s
Net daily
$2.00
Open product page

Whatsminer M21S (56MH/s) leads this comparison

Whatsminer M21S (56MH/s) comes out ahead on more buyer-facing signals here. Antminer K7 (63.5TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.

K7
1
metric wins
Whatsminer M21S
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 K7 (63.5TH/s)Whatsminer M21S (56MH/s)Advantage
Brand
Antminer
N/A
Contextual
Model
K7
N/A
Contextual
Hashrate
63.5 TH/s
Best
56 MH/s
Antminer K7 (63.5TH/s)
Power Consumption
3080W
0W
Best
Whatsminer M21S (56MH/s)
Efficiency
48.50 J/TH
N/A
Contextual
Daily energy use
73.9 kWh
0.0 kWh
Best
Whatsminer M21S (56MH/s)
Net Daily Profit (Est.)
$1.21
$2.00
Best
Whatsminer M21S (56MH/s)
Monthly Profit (Est.)
$36.44
$59.89
Best
Whatsminer M21S (56MH/s)
Price
$1,727.88
N/A
Contextual
Estimated ROI
47 mo
N/A
Contextual
Cooling
AIR
AIR
Contextual
Dimensions
N/A
155 x 390 x 240 mm
Contextual
Weight
N/A
12500 g
Contextual

Performance

Antminer K7 (63.5TH/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: Antminer K7 (63.5TH/s) or Whatsminer M21S (56MH/s)?

Antminer K7 (63.5TH/s) has a higher hashrate of 63.5 TH/s compared to Whatsminer M21S (56MH/s)'s 56 MH/s.

Is Antminer K7 (63.5TH/s) more efficient than Whatsminer M21S (56MH/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

Curious? Let’s connect to answer your questions.