Elphapex DG2+

Hashrate 20.5 GH/s Power 3,900 W Efficiency 190,243.9 J/TH

Goldshell MINI DOGE III (650Mh)

Hashrate 650.0 MH/s Power 400 W Efficiency 615,384.6 J/TH

Elphapex DG2+ vs Goldshell MINI DOGE III (650Mh)

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

Specifications Comparison

Elphapex DG2+	Specification	Goldshell MINI DOGE III (650Mh)
20.5 GH/s	Hashrate	650.0 MH/s
3,900 W	Power Consumption	400 W
190,243.9 J/TH	Efficiency	615,384.6 J/TH
75 dB	Noise Level	—
16.5 kg	Weight	2.3 kg
13,307 BTU/hr	BTU Output	1,365 BTU/hr
30/100	Home Mining Score	34/100
—	Release Year	—
Scrypt	Algorithm	Scrypt
Elphapex	Manufacturer	Goldshell

Profitability Comparison

Electricity Rate:

$/kWh

Elphapex DG2+

Daily Revenue 0.00000001 BTC $0.00

Daily Electricity -$9.36

Daily Profit -$9.36

Monthly -$280.78

Yearly -$3,416.13

Goldshell MINI DOGE III (650Mh)

Daily Revenue 0.00000000 BTC $0.00

Daily Electricity -$0.96

Daily Profit -$0.96

Monthly -$28.80

Yearly -$350.39

Based on BTC price of $78,165 and current network difficulty as of May 16, 2026. Actual results vary.

Verdict

Our scoring model gives the nod to the Elphapex DG2+, which leads on 3 of 6 weighted factors (efficiency, hashrate, noise level). Where it pulls away hardest is 3054% more hashrate (0.0 vs 0.0 TH/s). The Goldshell MINI DOGE III (650Mh) claws back ground on power consumption and home mining score and price-performance. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.

Winner: Elphapex DG2+ — wins on 3 of 6 factors

Spec Deltas

Here is every spec where the Elphapex DG2+ and Goldshell MINI DOGE III (650Mh) actually differ, with the gap quantified:

Elphapex DG2+ 3054% more hashrate (0.0 vs 0.0 TH/s)
Goldshell MINI DOGE III (650Mh) 90% better power draw (3,900 vs 400 W)
Elphapex DG2+ 69% better efficiency (190,244 vs 615,385 J/TH)
Goldshell MINI DOGE III (650Mh) 86% better weight (16.5 vs 2.3 kg)
Elphapex DG2+ 875% more heat output (13,307 vs 1,365 BTU/hr)
Goldshell MINI DOGE III (650Mh) 13% more home mining score (30.0 vs 34.0)

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.

Elphapex DG2+	Metric	Goldshell MINI DOGE III (650Mh)
$8,000	Upfront cost (MSRP)	$199
-$9.36	Daily net profit	-$0.96
-$11,416	Net after 1 year	-$549
-$14,832	Net after 2 years	-$900
-$18,248	Net after 3 years	-$1,250
Does not pay back at current rates (negative daily profit)	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 (650Mh)

Score: 34/100. 0 dB noise level.

Best for Efficiency

Elphapex DG2+

190,243.9 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Elphapex DG2+ vs Goldshell MINI DOGE III (650Mh): which one earns more per day?

At the current BTC price and a $0.10/kWh electricity rate, the Goldshell MINI DOGE III (650Mh) is more profitable at $-0.96/day compared to $-9.36/day for the Elphapex DG2+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Is the Elphapex DG2+ or the Goldshell MINI DOGE III (650Mh) better for noise-sensitive spaces?

The Elphapex DG2+ is quieter at 75 dB compared to the Goldshell MINI DOGE III (650Mh) at 0 dB. For home mining, lower noise levels make a significant difference in livability.

For mining at home, should I pick the Elphapex DG2+ or the Goldshell MINI DOGE III (650Mh)?

The Goldshell MINI DOGE III (650Mh) scores 34/100 on our Home Mining Score (vs 30/100 for the Elphapex DG2+). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

How far apart are the Elphapex DG2+ and Goldshell MINI DOGE III (650Mh) on J/TH?

The Elphapex DG2+ runs at 190,243.9 J/TH while the Goldshell MINI DOGE III (650Mh) runs at 615,384.6 J/TH — a difference of 425,140.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 69% better efficiency (190,244 vs 615,385 J/TH).

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