GMO miner B3 vs Whatsminer M30S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| GMO miner B3 | Specification | Whatsminer M30S |
|---|---|---|
| 33.0 TH/s | Hashrate | 88.0 TH/s |
| 3,417 W | Power Consumption | 3,344 W |
| 103.6 J/TH | Efficiency | 38.0 J/TH |
| — | Noise Level | 75 dB |
| 5,000.0 kg | Weight | 11.5 kg |
| 11,659 BTU/hr | BTU Output | 11,410 BTU/hr |
| 22/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| GMO miner | Manufacturer | MicroBT |
Profitability Comparison
GMO miner B3
Whatsminer M30S
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Whatsminer M30S wins on 5 of 5 factors (efficiency, hashrate, power consumption, home mining score, noise level). Where it pulls away hardest is 63% better efficiency (103.6 vs 38.0 J/TH). The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the GMO miner B3 and Whatsminer M30S sit on each measurable spec:
- Whatsminer M30S 167% more hashrate (33.0 vs 88.0 TH/s)
- Whatsminer M30S 2% better power draw (3,417 vs 3,344 W)
- Whatsminer M30S 63% better efficiency (103.6 vs 38.0 J/TH)
- Whatsminer M30S 100% better weight (5,000.0 vs 11.5 kg)
- GMO miner B3 2% more heat output (11,659 vs 11,410 BTU/hr)
- Whatsminer M30S 64% more home mining score (22.0 vs 36.0)
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.
| GMO miner B3 | Metric | Whatsminer M30S |
|---|---|---|
| — | Upfront cost (MSRP) | $1,500 |
| -$7.00 | Daily net profit | -$4.82 |
| -$2,555 | Net after 1 year | -$3,261 |
| -$5,110 | Net after 2 years | -$5,022 |
| -$7,665 | Net after 3 years | -$6,783 |
| — | Payback period | Does not pay back at current rates (negative daily profit) |
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
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M30SScore: 36/100. 75 dB noise level.
Best for Efficiency
Whatsminer M30S38.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the GMO miner B3 or the Whatsminer M30S?
At the current BTC price and a $0.10/kWh electricity rate, the Whatsminer M30S is more profitable at $-4.82/day compared to $-7.00/day for the GMO miner B3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the GMO miner B3 or Whatsminer M30S?
The Whatsminer M30S is quieter at 75 dB compared to the GMO miner B3 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the GMO miner B3 or the Whatsminer M30S?
The Whatsminer M30S scores 36/100 on our Home Mining Score (vs 22/100 for the GMO miner B3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the GMO miner B3 and Whatsminer M30S on J/TH?
The GMO miner B3 runs at 103.6 J/TH while the Whatsminer M30S runs at 38.0 J/TH — a difference of 65.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 63% better efficiency (103.6 vs 38.0 J/TH).