Innosilicon T3 39T vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Innosilicon T3 39T | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 39.0 TH/s | Hashrate | 31.0 TH/s |
| 2,150 W | Power Consumption | 1,860 W |
| 55.1 J/TH | Efficiency | 60.0 J/TH |
| — | Noise Level | — |
| 8,650.0 kg | Weight | 7,150.0 kg |
| 7,336 BTU/hr | BTU Output | 6,346 BTU/hr |
| 26/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Innosilicon | Manufacturer | MicroBT |
Profitability Comparison
Innosilicon T3 39T
MicroBT Whatsminer M21
Based on BTC price of $68,764 and current network difficulty as of Mar 27, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Innosilicon T3 39T wins on 2 of 4 factors (efficiency, hashrate). The MicroBT Whatsminer M21 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.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
MicroBT Whatsminer M21Score: 28/100. 0 dB noise level.
Best for Efficiency
Innosilicon T3 39T55.1 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Innosilicon T3 39T or MicroBT Whatsminer M21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.54/day compared to $-4.00/day for the Innosilicon T3 39T. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Innosilicon T3 39T or MicroBT Whatsminer M21?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Innosilicon T3 39T or MicroBT Whatsminer M21?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 26/100 for the Innosilicon T3 39T). 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 Innosilicon T3 39T and MicroBT Whatsminer M21?
The Innosilicon T3 39T runs at 55.1 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 4.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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