Goldshell DG Card vs BW L21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Goldshell DG Card | Specification | BW L21 |
|---|---|---|
| 80.0 MH/s | Taux de hachage | 550.0 MH/s |
| 65 W | Consommation électrique | 950 W |
| 812,500.0 J/TH | Efficiency | 1,727,272.7 J/TH |
| 35 dB | Niveau de bruit | — |
| 0.3 kg | Weight | 5,750.0 kg |
| 222 BTU/hr | BTU Output | 3,241 BTU/hr |
| 71/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Scrypt | Algorithme | Scrypt |
| Goldshell | Manufacturer | BW |
Profitability Comparison
Goldshell DG Card
BW L21
Based on BTC price of $78,217 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Goldshell DG Card edges it: 4 of 4 factors go its way (efficacité, consommation électrique, score de minage domestique, niveau sonore). Its biggest concrete edge: 93% better power draw (65.0 vs 950.0 W). The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Goldshell DG Card and BW L21 sit on each measurable spec:
- BW L21 588% more hashrate (0.0 vs 0.0 TH/s)
- Goldshell DG Card 93% better power draw (65.0 vs 950.0 W)
- Goldshell DG Card 53% better efficacité (812,500 vs 1,727,273 J/TH)
- Goldshell DG Card 100% better weight (0.3 vs 5,750.0 kg)
- BW L21 1361% more heat output (222 vs 3,241 BTU/hr)
- Goldshell DG Card 129% more score de minage domestique (71.0 vs 31.0)
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.
| Goldshell DG Card | Metric | BW L21 |
|---|---|---|
| $113 | Upfront cost (MSRP) | — |
| -$0.16 | Daily net profit | -$2.28 |
| -$170 | Net after 1 year | -$832 |
| -$227 | Net after 2 years | -$1,664 |
| -$284 | 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
Goldshell DG CardScore: 71/100. 35 dB noise level.
Best for Efficiency
Goldshell DG Card812,500.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Goldshell DG Card or the BW L21?
At the current BTC price and a $0.10/kWh electricity rate, the Goldshell DG Card is more profitable at $-0.16/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.
Goldshell DG Card vs BW L21: which runs at a lower noise level?
The Goldshell DG Card is quieter at 35 dB compared to the BW L21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Goldshell DG Card vs BW L21: which fits a residential setup better?
The Goldshell DG Card scores 71/100 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 Goldshell DG Card and BW L21?
The Goldshell DG Card runs at 812,500.0 J/TH while the BW L21 runs at 1,727,272.7 J/TH — a difference of 914,772.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 53% better efficacité (812,500 vs 1,727,273 J/TH).