BW L21

Taux de hachage 550.0 MH/s Puissance 950 W Efficiency 1,727,272.7 J/TH

Goldshell MINI DOGE III PLUS

Taux de hachage 810.0 MH/s Puissance 500 W Efficiency 617,284.0 J/TH

BW L21 vs Goldshell MINI DOGE III PLUS

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

BW L21	Specification	Goldshell MINI DOGE III PLUS
550.0 MH/s	Taux de hachage	810.0 MH/s
950 W	Consommation électrique	500 W
1,727,272.7 J/TH	Efficiency	617,284.0 J/TH
—	Niveau de bruit	35 dB
5,750.0 kg	Weight	3.7 kg
3,241 BTU/hr	BTU Output	1,706 BTU/hr
31/100	Home Mining Score	69/100
—	Release Year	—
Scrypt	Algorithme	Scrypt
BW	Manufacturer	Goldshell

Profitability Comparison

Electricity Rate:

$/kWh

BW L21

Daily Revenue 0.00000000 BTC $0.00

Daily Electricity -$2.28

Daily Profit -$2.28

Monthly -$68.40

Yearly -$832.19

Goldshell MINI DOGE III PLUS

Daily Revenue 0.00000000 BTC $0.00

Daily Electricity -$1.20

Daily Profit -$1.20

Monthly -$36.00

Yearly -$437.99

Based on BTC price of $78,200 and current network difficulty as of May 16, 2026. Actual results vary.

Verdict

Our scoring model gives the nod to the Goldshell MINI DOGE III PLUS, which leads on 4 of 4 weighted factors (efficacité, consommation électrique, score de minage domestique, niveau sonore). Where it pulls away hardest is 64% better efficacité (1,727,273 vs 617,284 J/TH). The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Goldshell MINI DOGE III PLUS — l'emporte sur 4 des 4 facteurs

Spec Deltas

The BW L21 and Goldshell MINI DOGE III PLUS diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":

Goldshell MINI DOGE III PLUS 47% more hashrate (0.0 vs 0.0 TH/s)
Goldshell MINI DOGE III PLUS 47% better power draw (950 vs 500 W)
Goldshell MINI DOGE III PLUS 64% better efficacité (1,727,273 vs 617,284 J/TH)
Goldshell MINI DOGE III PLUS 100% better weight (5,750.0 vs 3.7 kg)
BW L21 90% more heat output (3,241 vs 1,706 BTU/hr)
Goldshell MINI DOGE III PLUS 123% more score de minage domestique (31.0 vs 69.0)

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.

BW L21	Metric	Goldshell MINI DOGE III PLUS
—	Upfront cost (MSRP)	$420
-$2.28	Daily net profit	-$1.20
-$832	Net after 1 year	-$858
-$1,664	Net after 2 years	-$1,296
-$2,497	Net after 3 years	-$1,734
—	Payback period	Does not pay back at current rates (negative daily profit)

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

Tie

Both miners produce similar daily profit.

Best for Home Mining

Goldshell MINI DOGE III PLUS

Score: 69/100. 35 dB noise level.

Best for Efficiency

Goldshell MINI DOGE III PLUS

617,284.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the BW L21 or Goldshell MINI DOGE III PLUS more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Goldshell MINI DOGE III PLUS is more profitable at $-1.20/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.

BW L21 vs Goldshell MINI DOGE III PLUS: which runs at a lower noise level?

The Goldshell MINI DOGE III PLUS 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.

BW L21 vs Goldshell MINI DOGE III PLUS: which fits a residential setup better?

The Goldshell MINI DOGE III PLUS scores 69/100 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.

BW L21 vs Goldshell MINI DOGE III PLUS: how much does the efficiency gap matter?

The BW L21 runs at 1,727,272.7 J/TH while the Goldshell MINI DOGE III PLUS runs at 617,284.0 J/TH — a difference of 1,109,988.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 64% better efficacité (1,727,273 vs 617,284 J/TH).

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