Bitmain Antminer S21e Hyd (288Th) vs MicroBT Whatsminer M3X
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e Hyd (288Th) | Specification | MicroBT Whatsminer M3X |
|---|---|---|
| 288.0 TH/s | Hashrate | 12.5 TH/s |
| 4,896 W | Power Consumption | 2,050 W |
| 17.0 J/TH | Efficiency | 164.0 J/TH |
| 50 dB | Noise Level | — |
| 13.8 kg | Weight | 7,500.0 kg |
| 16,705 BTU/hr | BTU Output | 6,995 BTU/hr |
| 44/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21e Hyd (288Th)
MicroBT Whatsminer M3X
Based on BTC price of $79,125 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S21e Hyd (288Th) comes out ahead — it takes 5 of 6 (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 2204% more hashrate (288.0 vs 12.5 TH/s). That said, the MicroBT Whatsminer M3X isn't beaten everywhere — it still wins power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitmain Antminer S21e Hyd (288Th) and MicroBT Whatsminer M3X diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21e Hyd (288Th) 2204% more hashrate (288.0 vs 12.5 TH/s)
- MicroBT Whatsminer M3X 58% better power draw (4,896 vs 2,050 W)
- Bitmain Antminer S21e Hyd (288Th) 90% better efficiency (17.0 vs 164.0 J/TH)
- Bitmain Antminer S21e Hyd (288Th) 100% better weight (13.8 vs 7,500.0 kg)
- Bitmain Antminer S21e Hyd (288Th) 139% more heat output (16,705 vs 6,995 BTU/hr)
- Bitmain Antminer S21e Hyd (288Th) 69% more home mining score (44.0 vs 26.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S21e Hyd (288Th) | Metric | MicroBT Whatsminer M3X |
|---|---|---|
| $1,498 | Upfront cost (MSRP) | $350 |
| -$0.94 | Daily net profit | -$4.45 |
| -$1,840 | Net after 1 year | -$1,974 |
| -$2,182 | Net after 2 years | -$3,599 |
| -$2,523 | Net after 3 years | -$5,223 |
| Does not pay back at current rates (negative daily profit) | 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
Bitmain Antminer S21e Hyd (288Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (288Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21e Hyd (288Th) or the MicroBT Whatsminer M3X?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (288Th) is more profitable at $-0.94/day compared to $-4.45/day for the MicroBT Whatsminer M3X. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21e Hyd (288Th) or the MicroBT Whatsminer M3X better for noise-sensitive spaces?
The Bitmain Antminer S21e Hyd (288Th) is quieter at 50 dB compared to the MicroBT Whatsminer M3X 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 S21e Hyd (288Th) or the MicroBT Whatsminer M3X?
The Bitmain Antminer S21e Hyd (288Th) scores 44/100 on our Home Mining Score (vs 26/100 for the MicroBT Whatsminer M3X). 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 S21e Hyd (288Th) and MicroBT Whatsminer M3X on J/TH?
The Bitmain Antminer S21e Hyd (288Th) runs at 17.0 J/TH while the MicroBT Whatsminer M3X runs at 164.0 J/TH — a difference of 147.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 90% better efficiency (17.0 vs 164.0 J/TH).