MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M20S | Specification | MicroBT WhatsMiner M79S |
|---|---|---|
| 68.0 TH/s | Hashrate | 980.0 TH/s |
| 3,360 W | Power Consumption | 13,230 W |
| 49.4 J/TH | Efficiency | 13.5 J/TH |
| — | Noise Level | 50 dB |
| 12,500.0 kg | Weight | 37.0 kg |
| 11,464 BTU/hr | BTU Output | 45,141 BTU/hr |
| 22/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M20S
MicroBT WhatsMiner M79S
Based on BTC price of $79,222 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the MicroBT WhatsMiner M79S comes out ahead — it takes 4 of 5 (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 1341% more hashrate (68.0 vs 980.0 TH/s). The MicroBT Whatsminer M20S holds the edge in power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M20S and MicroBT WhatsMiner M79S actually differ, with the gap quantified:
- MicroBT WhatsMiner M79S 1341% more hashrate (68.0 vs 980.0 TH/s)
- MicroBT Whatsminer M20S 75% better power draw (3,360 vs 13,230 W)
- MicroBT WhatsMiner M79S 73% better efficiency (49.4 vs 13.5 J/TH)
- MicroBT WhatsMiner M79S 100% better weight (12,500.0 vs 37.0 kg)
- MicroBT WhatsMiner M79S 294% more heat output (11,464 vs 45,141 BTU/hr)
- MicroBT WhatsMiner M79S 100% more home mining score (22.0 vs 44.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| MicroBT Whatsminer M20S | Metric | MicroBT WhatsMiner M79S |
|---|---|---|
| $66 | Upfront cost (MSRP) | — |
| -$5.51 | Daily net profit | $5.09 |
| -$2,076 | Net after 1 year | +$1,858 |
| -$4,087 | Net after 2 years | +$3,716 |
| -$6,097 | Net after 3 years | +$5,574 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
MicroBT WhatsMiner M79S$10.60/day higher profit at current rates.
Best for Home Mining
MicroBT WhatsMiner M79SScore: 44/100. 50 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M79S13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79S: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M79S is more profitable at $5.09/day compared to $-5.51/day for the MicroBT Whatsminer M20S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79S: which runs at a lower noise level?
The MicroBT WhatsMiner M79S is quieter at 50 dB compared to the MicroBT Whatsminer M20S at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the MicroBT Whatsminer M20S or MicroBT WhatsMiner M79S?
The MicroBT WhatsMiner M79S scores 44/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M20S). 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 MicroBT Whatsminer M20S and MicroBT WhatsMiner M79S?
The MicroBT Whatsminer M20S runs at 49.4 J/TH while the MicroBT WhatsMiner M79S runs at 13.5 J/TH — a difference of 35.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 73% better efficiency (49.4 vs 13.5 J/TH).