Bitmain Antminer S21+ Hyd (358Th) vs Whatsminer M50
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21+ Hyd (358Th) | Specification | Whatsminer M50 |
|---|---|---|
| 358.0 TH/s | Hashrate | 114.0 TH/s |
| 5,370 W | Power Consumption | 3,306 W |
| 15.0 J/TH | Efficiency | 29.0 J/TH |
| 50 dB | Noise Level | 75 dB |
| 12.8 kg | Weight | 12.5 kg |
| 18,322 BTU/hr | BTU Output | 11,280 BTU/hr |
| 44/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21+ Hyd (358Th)
Whatsminer M50
Based on BTC price of $79,123 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S21+ Hyd (358Th) comes out ahead — it takes 5 of 6 (efficiency, hashrate, home mining score, noise level, price-performance). Its biggest concrete edge: 214% more hashrate (358 vs 114 TH/s). That said, the Whatsminer M50 isn't beaten everywhere — it still wins 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 Bitmain Antminer S21+ Hyd (358Th) and Whatsminer M50 actually differ, with the gap quantified:
- Bitmain Antminer S21+ Hyd (358Th) 214% more hashrate (358 vs 114 TH/s)
- Whatsminer M50 38% better power draw (5,370 vs 3,306 W)
- Bitmain Antminer S21+ Hyd (358Th) 48% better efficiency (15.0 vs 29.0 J/TH)
- Bitmain Antminer S21+ Hyd (358Th) 33% better noise (50.0 vs 75.0 dB)
- Whatsminer M50 2% better weight (12.8 vs 12.5 kg)
- Bitmain Antminer S21+ Hyd (358Th) 62% more heat output (18,322 vs 11,280 BTU/hr)
- Bitmain Antminer S21+ Hyd (358Th) 22% more home mining score (44.0 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 S21+ Hyd (358Th) | Metric | Whatsminer M50 |
|---|---|---|
| $2,757 | Upfront cost (MSRP) | $2,600 |
| $0.15 | Daily net profit | -$3.78 |
| -$2,703 | Net after 1 year | -$3,981 |
| -$2,650 | Net after 2 years | -$5,362 |
| -$2,596 | Net after 3 years | -$6,743 |
| Takes ~51.3 years to pay back at current rates | 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
Bitmain Antminer S21+ Hyd (358Th)$3.93/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21+ Hyd (358Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21+ Hyd (358Th)15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21+ Hyd (358Th) or Whatsminer M50 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21+ Hyd (358Th) is more profitable at $0.15/day compared to $-3.78/day for the Whatsminer M50. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21+ Hyd (358Th) or the Whatsminer M50 better for noise-sensitive spaces?
The Bitmain Antminer S21+ Hyd (358Th) is quieter at 50 dB compared to the Whatsminer M50 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21+ Hyd (358Th) vs Whatsminer M50: which fits a residential setup better?
The Bitmain Antminer S21+ Hyd (358Th) scores 44/100 on our Home Mining Score (vs 36/100 for the Whatsminer M50). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21+ Hyd (358Th) vs Whatsminer M50: how much does the efficiency gap matter?
The Bitmain Antminer S21+ Hyd (358Th) runs at 15.0 J/TH while the Whatsminer M50 runs at 29.0 J/TH — a difference of 14.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 48% better efficiency (15.0 vs 29.0 J/TH).