Bitmain Antminer S21 XP Hyd vs MicroBT WhatsMiner M78S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | MicroBT WhatsMiner M78S |
|---|---|---|
| 473.0 TH/s | Hashrate | 498.0 TH/s |
| 5,676 W | Power Consumption | 6,723 W |
| 12.0 J/TH | Efficiency | 13.5 J/TH |
| 50 dB | Noise Level | 75 dB |
| 12.3 kg | Weight | 18.0 kg |
| 19,367 BTU/hr | BTU Output | 22,939 BTU/hr |
| 44/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
MicroBT WhatsMiner M78S
Based on BTC price of $70,684 and current network difficulty as of Mar 24, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP Hyd wins on 4 of 5 factors (efficiency, power consumption, home mining score, noise level). The MicroBT WhatsMiner M78S holds the edge in hashrate. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitmain Antminer S21 XP Hyd$1.75/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21 XP HydScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21 XP Hyd12.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 XP Hyd or MicroBT WhatsMiner M78S more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Hyd is more profitable at $0.87/day compared to $-0.88/day for the MicroBT WhatsMiner M78S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 XP Hyd or MicroBT WhatsMiner M78S?
The Bitmain Antminer S21 XP Hyd is quieter at 50 dB compared to the MicroBT WhatsMiner M78S at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 XP Hyd or MicroBT WhatsMiner M78S?
The Bitmain Antminer S21 XP Hyd scores 44/100 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 S21 XP Hyd and MicroBT WhatsMiner M78S?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 1.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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