Bitmain Antminer S3 vs Whatsminer M30S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S3 | Specification | Whatsminer M30S |
|---|---|---|
| 478.0 GH/s | Hashrate | 88.0 TH/s |
| 366 W | Power Consumption | 3,344 W |
| 765.7 J/TH | Efficiency | 38.0 J/TH |
| — | Noise Level | 75 dB |
| 5,200.0 kg | Weight | 11.5 kg |
| 1,249 BTU/hr | BTU Output | 11,410 BTU/hr |
| 34/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S3
Whatsminer M30S
Based on BTC price of $79,032 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Whatsminer M30S edges it: 4 of 5 factors go its way (efficiency, hashrate, home mining score, noise level). Where it pulls away hardest is 18310% more hashrate (0.5 vs 88.0 TH/s). The Bitmain Antminer S3 holds the edge in power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S3 and Whatsminer M30S sit on each measurable spec:
- Whatsminer M30S 18310% more hashrate (0.5 vs 88.0 TH/s)
- Bitmain Antminer S3 89% better power draw (366 vs 3,344 W)
- Whatsminer M30S 95% better efficiency (765.7 vs 38.0 J/TH)
- Whatsminer M30S 100% better weight (5,200.0 vs 11.5 kg)
- Whatsminer M30S 814% more heat output (1,249 vs 11,410 BTU/hr)
- Whatsminer M30S 6% more home mining score (34.0 vs 36.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer S3 | Metric | Whatsminer M30S |
|---|---|---|
| — | Upfront cost (MSRP) | $1,500 |
| -$0.86 | Daily net profit | -$4.83 |
| -$314 | Net after 1 year | -$3,261 |
| -$629 | Net after 2 years | -$5,022 |
| -$943 | 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
Bitmain Antminer S3 vs Whatsminer M30S: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S3 is more profitable at $-0.86/day compared to $-4.83/day for the Whatsminer M30S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S3 or the Whatsminer M30S better for noise-sensitive spaces?
The Whatsminer M30S is quieter at 75 dB compared to the Bitmain Antminer S3 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S3 or the Whatsminer M30S?
The Whatsminer M30S scores 36/100 on our Home Mining Score (vs 34/100 for the Bitmain Antminer S3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S3 and Whatsminer M30S on J/TH?
The Bitmain Antminer S3 runs at 765.7 J/TH while the Whatsminer M30S runs at 38.0 J/TH — a difference of 727.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 95% better efficiency (765.7 vs 38.0 J/TH).