ASIC miner comparison

WhatsMiner M63 (334TH/s) vs Antminer S21j XP Hydro (495TH/s)

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

WhatsMiner M63 (334TH/s)
VS
Antminer S21j XP Hydro (495TH/s)
Higher hashrate
S21
Better efficiency
S21
Estimated net daily
S21
Hosted power rate
$0.060/kWh

Option 1

WhatsMiner M63 (334TH/s)

100 available
WhatsMiner M63 (334TH/s)
Price
$2,139.97
ROI
38 mo
Hashrate
334 TH/s
Net daily
$1.85
Open product page

Option 2

Antminer S21j XP Hydro (495TH/s)

100 available
Antminer S21j XP Hydro (495TH/s)
Price
$6,544.39
ROI
38 mo
Hashrate
495 TH/s
Net daily
$5.67
Open product page

Antminer S21j XP Hydro (495TH/s) leads this comparison

Antminer S21j XP Hydro (495TH/s) comes out ahead on more buyer-facing signals here. WhatsMiner M63 (334TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.

M63
1
metric wins
S21
7
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.

FeatureWhatsMiner M63 (334TH/s)Antminer S21j XP Hydro (495TH/s)Advantage
Brand
MicroBT
Antminer
Contextual
Model
M63
S21
Contextual
Hashrate
334 TH/s
495 TH/s
Best
Antminer S21j XP Hydro (495TH/s)
Power Consumption
6646W
5940W
Best
Antminer S21j XP Hydro (495TH/s)
Efficiency
19.90 J/TH
12.00 J/TH
Best
Antminer S21j XP Hydro (495TH/s)
Daily energy use
159.5 kWh
142.6 kWh
Best
Antminer S21j XP Hydro (495TH/s)
Net Daily Profit (Est.)
$1.85
$5.67
Best
Antminer S21j XP Hydro (495TH/s)
Monthly Profit (Est.)
$55.49
$169.99
Best
Antminer S21j XP Hydro (495TH/s)
Price
$2,139.97
Best
$6,544.39
WhatsMiner M63 (334TH/s)
Estimated ROI
38 mo
38 mo
Best
Antminer S21j XP Hydro (495TH/s)
Cooling
AIR
HYDRO
Contextual
Dimensions
483 x 86 x 663 mm
410 x 209 x 170 mm
Contextual
Weight
27500 g
N/A
Contextual

Performance

Antminer S21j XP Hydro (495TH/s) has the hashrate edge for raw output potential.

Efficiency

Antminer S21j XP Hydro (495TH/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 M63 (334TH/s) or Antminer S21j XP Hydro (495TH/s)?

Antminer S21j XP Hydro (495TH/s) has a higher hashrate of 495 TH/s compared to WhatsMiner M63 (334TH/s)'s 334 TH/s.

Is WhatsMiner M63 (334TH/s) more efficient than Antminer S21j XP Hydro (495TH/s)?

Antminer S21j XP Hydro (495TH/s) is more energy efficient at 12.00 J/TH.

Which miner has the better estimated ROI?

Antminer S21j XP Hydro (495TH/s) has the stronger estimated payback period at 38 mo, based on current product pricing and $0.060/kWh hosted electricity.

Every Day You Wait is Revenue You Lose

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