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Bitmain T21 (190TH)

Bitmain T21 (190TH)

Hashrate 190.0 TH/s Power 3,610 W Efficiency 19.0 J/TH
VS

MicroBT WhatsMiner M78S

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

Bitmain T21 (190TH) vs MicroBT WhatsMiner M78S

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

Specifications Comparison

Bitmain T21 (190TH) Specification MicroBT WhatsMiner M78S
190.0 TH/s Hashrate 498.0 TH/s
3,610 W Power Consumption 6,723 W
19.0 J/TH Efficiency 13.5 J/TH
76 dB Noise Level 75 dB
16.4 kg Weight 18.0 kg
12,317 BTU/hr BTU Output 22,939 BTU/hr
23/100 Home Mining Score 30/100
— Release Year —
SHA-256 Algorithm SHA-256
Bitmain Manufacturer MicroBT

Profitability Comparison

$/kWh

Bitmain T21 (190TH)

Daily Revenue 0.00008809 BTC $6.81
Daily Electricity -$8.66
Daily Profit -$1.85
Monthly -$55.54
Yearly -$675.73

MicroBT WhatsMiner M78S

Daily Revenue 0.00023088 BTC $17.86
Daily Electricity -$16.14
Daily Profit $1.72
Monthly $51.64
Yearly $628.24

Based on BTC price of $77,340 and current network difficulty as of Apr 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the MicroBT WhatsMiner M78S wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The Bitmain T21 (190TH) holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: MicroBT WhatsMiner M78S — wins on 4 of 5 factors

Best For...

Best for Profitability

MicroBT WhatsMiner M78S

$3.57/day higher profit at current rates.

Best for Home Mining

MicroBT WhatsMiner M78S

Score: 30/100. 75 dB noise level.

Best for Efficiency

MicroBT WhatsMiner M78S

13.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain T21 (190TH) 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 $1.72/day compared to $-1.85/day for the Bitmain T21 (190TH). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Bitmain T21 (190TH) or MicroBT WhatsMiner M78S?

The MicroBT WhatsMiner M78S is quieter at 75 dB compared to the Bitmain T21 (190TH) at 76 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Bitmain T21 (190TH) or MicroBT WhatsMiner M78S?

The MicroBT WhatsMiner M78S scores 30/100 on our Home Mining Score (vs 23/100 for the Bitmain T21 (190TH)). 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 T21 (190TH) and MicroBT WhatsMiner M78S?

The Bitmain T21 (190TH) runs at 19.0 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 5.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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