MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| MicroBT Whatsminer M20S | Specification | MicroBT WhatsMiner M79 |
|---|---|---|
| 68.0 TH/s | Hashrate | 920.0 TH/s |
| 3,360 W | Power Consumption | 13,340 W |
| 49.4 J/TH | Efficiency | 14.5 J/TH |
| — | Noise Level | 50 dB |
| 12,500.0 kg | Weight | 37.0 kg |
| 11,464 BTU/hr | BTU Output | 45,516 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 M79
Based on BTC price of $79,027 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the MicroBT WhatsMiner M79, which leads on 4 of 5 weighted factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 1253% more hashrate (68.0 vs 920.0 TH/s). That said, the MicroBT Whatsminer M20S isn't beaten everywhere — it still wins power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the MicroBT Whatsminer M20S and MicroBT WhatsMiner M79 sit on each measurable spec:
- MicroBT WhatsMiner M79 1253% more hashrate (68.0 vs 920.0 TH/s)
- MicroBT Whatsminer M20S 75% better power draw (3,360 vs 13,340 W)
- MicroBT WhatsMiner M79 71% better efficiency (49.4 vs 14.5 J/TH)
- MicroBT WhatsMiner M79 100% better weight (12,500.0 vs 37.0 kg)
- MicroBT WhatsMiner M79 297% more heat output (11,464 vs 45,516 BTU/hr)
- MicroBT WhatsMiner M79 100% more home mining score (22.0 vs 44.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| MicroBT Whatsminer M20S | Metric | MicroBT WhatsMiner M79 |
|---|---|---|
| $66 | Upfront cost (MSRP) | — |
| -$5.59 | Daily net profit | $1.44 |
| -$2,107 | Net after 1 year | +$526 |
| -$4,147 | Net after 2 years | +$1,052 |
| -$6,188 | Net after 3 years | +$1,578 |
| 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 M79$7.03/day higher profit at current rates.
Best for Home Mining
MicroBT WhatsMiner M79Score: 44/100. 50 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M7914.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M79 is more profitable at $1.44/day compared to $-5.59/day for the MicroBT Whatsminer M20S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the MicroBT Whatsminer M20S or the MicroBT WhatsMiner M79 better for noise-sensitive spaces?
The MicroBT WhatsMiner M79 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.
MicroBT Whatsminer M20S vs MicroBT WhatsMiner M79: which fits a residential setup better?
The MicroBT WhatsMiner M79 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.
How far apart are the MicroBT Whatsminer M20S and MicroBT WhatsMiner M79 on J/TH?
The MicroBT Whatsminer M20S runs at 49.4 J/TH while the MicroBT WhatsMiner M79 runs at 14.5 J/TH — a difference of 34.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 71% better efficiency (49.4 vs 14.5 J/TH).