Bitcoin's value surged by 125% in 2016 and surpassed ¥20,000 ($2,800) by June 2017, reigniting global interest in cryptocurrency mining. This guide compares three industry-leading ASIC miners—Antminer S9, Ebit E9+, and AvalonMiner 741—focusing on hash rate, power efficiency, and ROI.
Key Specifications
| Miner Model | Hash Rate | Power Consumption | Chip Technology | Noise Level |
|---|---|---|---|---|
| Antminer S9 (13.5T) | 13.5 TH/s | 1583W | 16nm BM1387 | 71.9 dB |
| Ebit E9+ | 9 TH/s | 1606W | 14nm WD1227 | 83.4 dB |
| AvalonMiner 741 | 7.3 TH/s | 1291W | N/A | 62.2 dB |
Performance Breakdown
Hash Rate Dominance
- Antminer S9: Averaged 13.8 TH/s (exceeding its 13.5 TH/s claim) during testing.
- Ebit E9+: Consistent 8.9 TH/s, slightly below advertised.
- AvalonMiner 741: Underperformed at 6.8 TH/s, a 6.8% deficit.
Energy Efficiency
- Antminer leads with 8.72G/W, outperforming Ebit's 5.6G/W and Avalon's 5.65G/W.
- Despite similar power draws (~1600W), Antminer delivers 55% higher output than Ebit.
Noise Levels
- Avalon: Quietest (62.2 dB), suitable for residential use.
- Ebit: Loudest (83.4 dB), comparable to a vacuum cleaner.
- Antminer: Balanced (71.9 dB).
ROI Analysis (Based on ¥0.6/kWh)
| Miner | Daily Revenue* | Break-Even Time |
|---|---|---|
| Antminer S9 | ¥92.40 | 5.2 months |
| Ebit E9+ | ¥58.80 | 7.6 months |
| AvalonMiner 741 | ¥45.60 | 9.1 months |
*Assuming 0.00036689 BTC/TH/s/day at ¥17,890/BTC.
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FAQs
Q: Which miner is best for home use?
A: AvalonMiner 741—lower noise and power draw, though with reduced output.
Q: Why choose Antminer S9 despite higher cost?
A: Its superior hash rate and efficiency yield faster ROI (2 months sooner than competitors).
Q: Can I control fan speeds on these miners?
A: Only Antminer S9 offers manual frequency adjustments; others run fixed settings.
Final Verdict
- Antminer S9: Best for professionals—highest ROI and enterprise-grade build.
- Ebit E9+: Mid-range option, but noise issues limit placement options.
- AvalonMiner 741: Simplified design, though requires external controllers.
Pro Tip: Always factor in electricity costs and local noise regulations when selecting a miner. For optimal setups, pair with high-efficiency PSUs like APW3+ (93.5% efficiency).