Bitmain Antminer S9 (12.5Th)

Hashrate 12.5 TH/s Power 1,225 W Efficiency 98.0 J/TH

MicroBT WhatsMiner M78S

Hashrate 498.0 TH/s Power 6,723 W Efficiency 13.5 J/TH

Bitmain Antminer S9 (12.5Th) vs MicroBT WhatsMiner M78S

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Bitmain Antminer S9 (12.5Th)	Specification	MicroBT WhatsMiner M78S
12.5 TH/s	Hashrate	498.0 TH/s
1,225 W	Power Consumption	6,723 W
98.0 J/TH	Efficiency	13.5 J/TH
—	Noise Level	75 dB
4,200.0 kg	Weight	18.0 kg
4,180 BTU/hr	BTU Output	22,939 BTU/hr
31/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitmain	Manufacturer	MicroBT

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S9 (12.5Th)

Daily Revenue 0.00000542 BTC $0.38

Daily Electricity -$2.94

Daily Profit -$2.56

Monthly -$76.77

Yearly -$934.08

MicroBT WhatsMiner M78S

Daily Revenue 0.00021584 BTC $15.17

Daily Electricity -$16.14

Daily Profit -$0.96

Monthly -$28.82

Yearly -$350.68

Based on BTC price of $70,303 and current network difficulty as of Mar 24, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the MicroBT WhatsMiner M78S wins on 3 of 5 factors (efficiency, hashrate, noise level). The Bitmain Antminer S9 (12.5Th) holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: MicroBT WhatsMiner M78S — wins on 3 of 5 factors

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitmain Antminer S9 (12.5Th)

Score: 31/100. 0 dB noise level.

Best for Efficiency

MicroBT WhatsMiner M78S

13.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer S9 (12.5Th) or MicroBT WhatsMiner M78S more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M78S is more profitable at $-0.96/day compared to $-2.56/day for the Bitmain Antminer S9 (12.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Bitmain Antminer S9 (12.5Th) or MicroBT WhatsMiner M78S?

The MicroBT WhatsMiner M78S is quieter at 75 dB compared to the Bitmain Antminer S9 (12.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Bitmain Antminer S9 (12.5Th) or MicroBT WhatsMiner M78S?

The Bitmain Antminer S9 (12.5Th) scores 31/100 on our Home Mining Score (vs 30/100 for the MicroBT WhatsMiner M78S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between Bitmain Antminer S9 (12.5Th) and MicroBT WhatsMiner M78S?

The Bitmain Antminer S9 (12.5Th) runs at 98.0 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 84.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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