Antminer S21 Hydro vs Ebang Ebit E9.3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 Hydro | Specification | Ebang Ebit E9.3 |
|---|---|---|
| 335.0 TH/s | Hashrate | 16.0 TH/s |
| 5,360 W | Power Consumption | 1,760 W |
| 16.0 J/TH | Efficiency | 110.0 J/TH |
| 50 dB | Noise Level | — |
| 15.8 kg | Weight | 6,900.0 kg |
| 18,288 BTU/hr | BTU Output | 6,005 BTU/hr |
| 44/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Ebang |
Profitability Comparison
Antminer S21 Hydro
Ebang Ebit E9.3
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 Antminer S21 Hydro wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). The standout gap is 1994% more hashrate (335.0 vs 16.0 TH/s) in the Antminer S21 Hydro's favour. That said, the Ebang Ebit E9.3 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
The Antminer S21 Hydro and Ebang Ebit E9.3 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 Hydro 1994% more hashrate (335.0 vs 16.0 TH/s)
- Ebang Ebit E9.3 67% better power draw (5,360 vs 1,760 W)
- Antminer S21 Hydro 85% better efficiency (16.0 vs 110.0 J/TH)
- Antminer S21 Hydro 100% better weight (15.8 vs 6,900.0 kg)
- Antminer S21 Hydro 205% more heat output (18,288 vs 6,005 BTU/hr)
- Antminer S21 Hydro 57% more home mining score (44.0 vs 28.0)
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.
| Antminer S21 Hydro | Metric | Ebang Ebit E9.3 |
|---|---|---|
| $9,500 | Upfront cost (MSRP) | — |
| -$0.68 | Daily net profit | -$3.64 |
| -$9,747 | Net after 1 year | -$1,329 |
| -$9,994 | Net after 2 years | -$2,659 |
| -$10,242 | Net after 3 years | -$3,988 |
| 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
Antminer S21 HydroScore: 44/100. 50 dB noise level.
Best for Efficiency
Antminer S21 Hydro16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S21 Hydro vs Ebang Ebit E9.3: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Hydro is more profitable at $-0.68/day compared to $-3.64/day for the Ebang Ebit E9.3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S21 Hydro or the Ebang Ebit E9.3 better for noise-sensitive spaces?
The Antminer S21 Hydro is quieter at 50 dB compared to the Ebang Ebit E9.3 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S21 Hydro vs Ebang Ebit E9.3: which fits a residential setup better?
The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 28/100 for the Ebang Ebit E9.3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S21 Hydro vs Ebang Ebit E9.3: how much does the efficiency gap matter?
The Antminer S21 Hydro runs at 16.0 J/TH while the Ebang Ebit E9.3 runs at 110.0 J/TH — a difference of 94.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 85% better efficiency (16.0 vs 110.0 J/TH).