Antminer L9 vs BW L21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer L9 | Specification | BW L21 |
|---|---|---|
| 16,000.0 MH/s | Hashrate | 550.0 MH/s |
| 3,360 W | Power Consumption | 950 W |
| 210,000.0 J/TH | Efficiency | 1,727,272.7 J/TH |
| 75 dB | Noise Level | — |
| 14.8 kg | Weight | 5,750.0 kg |
| 11,464 BTU/hr | BTU Output | 3,241 BTU/hr |
| 36/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Scrypt | Algorithm | Scrypt |
| Bitmain | Manufacturer | BW |
Profitability Comparison
Antminer L9
BW L21
Based on BTC price of $74,306 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Antminer L9 offers 88% better efficiency at 210,000.0 J/TH compared to the BW L21 at 1,727,272.7 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer L9Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer L9210,000.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer L9 or BW L21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the BW L21 is more profitable at $-2.28/day compared to $-8.06/day for the Antminer L9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer L9 or BW L21?
The Antminer L9 is quieter at 75 dB compared to the BW L21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer L9 or BW L21?
The Antminer L9 scores 36/100 on our Home Mining Score (vs 31/100 for the BW L21). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer L9 and BW L21?
The Antminer L9 runs at 210,000.0 J/TH while the BW L21 runs at 1,727,272.7 J/TH — a difference of 1,517,272.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.