Bitmain Antminer S21e Hyd (288Th) vs GMO miner B2
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e Hyd (288Th) | Specification | GMO miner B2 |
|---|---|---|
| 288.0 TH/s | Hashrate | 24.0 TH/s |
| 4,896 W | Power Consumption | 1,950 W |
| 17.0 J/TH | Efficiency | 81.3 J/TH |
| 50 dB | Noise Level | — |
| 13.8 kg | Weight | — |
| 16,705 BTU/hr | BTU Output | 6,653 BTU/hr |
| 44/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | GMO miner |
Profitability Comparison
Bitmain Antminer S21e Hyd (288Th)
GMO miner B2
Based on BTC price of $78,153 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S21e Hyd (288Th) comes out ahead — it takes 4 of 5 (efficiency, hashrate, home mining score, noise level). The standout gap is 1100% more hashrate (288.0 vs 24.0 TH/s) in the Bitmain Antminer S21e Hyd (288Th)'s favour. The GMO miner B2 claws back ground on 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 GMO miner B2 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21e Hyd (288Th) 1100% more hashrate (288.0 vs 24.0 TH/s)
- GMO miner B2 60% better power draw (4,896 vs 1,950 W)
- Bitmain Antminer S21e Hyd (288Th) 79% better efficiency (17.0 vs 81.3 J/TH)
- Bitmain Antminer S21e Hyd (288Th) 151% more heat output (16,705 vs 6,653 BTU/hr)
- Bitmain Antminer S21e Hyd (288Th) 57% more home mining score (44.0 vs 28.0)
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 S21e Hyd (288Th) | Metric | GMO miner B2 |
|---|---|---|
| $1,498 | Upfront cost (MSRP) | — |
| -$1.39 | Daily net profit | -$3.82 |
| -$2,006 | Net after 1 year | -$1,393 |
| -$2,515 | Net after 2 years | -$2,786 |
| -$3,023 | Net after 3 years | -$4,179 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
Bitmain Antminer S21e Hyd (288Th) vs GMO miner B2: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (288Th) is more profitable at $-1.39/day compared to $-3.82/day for the GMO miner B2. 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 GMO miner B2 better for noise-sensitive spaces?
The Bitmain Antminer S21e Hyd (288Th) is quieter at 50 dB compared to the GMO miner B2 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21e Hyd (288Th) or GMO miner B2?
The Bitmain Antminer S21e Hyd (288Th) scores 44/100 on our Home Mining Score (vs 28/100 for the GMO miner B2). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21e Hyd (288Th) vs GMO miner B2: how much does the efficiency gap matter?
The Bitmain Antminer S21e Hyd (288Th) runs at 17.0 J/TH while the GMO miner B2 runs at 81.3 J/TH — a difference of 64.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 79% better efficiency (17.0 vs 81.3 J/TH).