Bitmain Antminer L3+ (504Mh) vs BW L21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer L3+ (504Mh) | Specification | BW L21 |
|---|---|---|
| 504.0 MH/s | Hashrate | 550.0 MH/s |
| 800 W | Power Consumption | 950 W |
| 1,587,301.6 J/TH | Efficiency | 1,727,272.7 J/TH |
| — | Noise Level | — |
| 4,400.0 kg | Weight | 5,750.0 kg |
| 2,730 BTU/hr | BTU Output | 3,241 BTU/hr |
| 30/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Scrypt | Algorithm | Scrypt |
| Bitmain | Manufacturer | BW |
Profitability Comparison
Bitmain Antminer L3+ (504Mh)
BW L21
Based on BTC price of $78,165 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer L3+ (504Mh) wins on 2 of 3 factors (efficiency, power consumption). Where it pulls away hardest is 16% better power draw (800 vs 950 W). The BW L21 holds the edge in home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer L3+ (504Mh) and BW L21 sit on each measurable spec:
- BW L21 9% more hashrate (0.0 vs 0.0 TH/s)
- Bitmain Antminer L3+ (504Mh) 16% better power draw (800 vs 950 W)
- Bitmain Antminer L3+ (504Mh) 8% better efficiency (1,587,302 vs 1,727,273 J/TH)
- Bitmain Antminer L3+ (504Mh) 23% better weight (4,400 vs 5,750 kg)
- BW L21 19% more heat output (2,730 vs 3,241 BTU/hr)
- BW L21 3% more home mining score (30.0 vs 31.0)
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 L3+ (504Mh) | Metric | BW L21 |
|---|---|---|
| $165 | Upfront cost (MSRP) | — |
| -$1.92 | Daily net profit | -$2.28 |
| -$866 | Net after 1 year | -$832 |
| -$1,567 | Net after 2 years | -$1,664 |
| -$2,267 | Net after 3 years | -$2,497 |
| 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
BW L21Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer L3+ (504Mh)1,587,301.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer L3+ (504Mh) vs BW L21: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer L3+ (504Mh) is more profitable at $-1.92/day compared to $-2.28/day for the BW L21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer L3+ (504Mh) vs BW L21: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitmain Antminer L3+ (504Mh) or the BW L21?
The BW L21 scores 31/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer L3+ (504Mh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer L3+ (504Mh) vs BW L21: how much does the efficiency gap matter?
The Bitmain Antminer L3+ (504Mh) runs at 1,587,301.6 J/TH while the BW L21 runs at 1,727,272.7 J/TH — a difference of 139,971.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 8% better efficiency (1,587,302 vs 1,727,273 J/TH).