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Compare Generators Side-by-Side

Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • DEWALT DXGNR8000
  • Genmax GM3300i
  • Model DXGNR8000
    Model DXGNR8000

    DEWALT 8,000W Gas Generator

    8000W
    Running
    0 dB
    Noise
    View details
  • Model GM3300i
    Model GM3300i

    Genmax 3,000W Gas Generator

    3000W
    Running
    62 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationDEWALT DXGNR8000Genmax GM3300i
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoYes
Parallel capableNoYes
RV readyNoYes
Running watts
Winner: Winner: 8000 W
3000 W
Starting watts
Winner: Winner: 10000 W
3300 W
Noise (lower limit)
0 dB
Winner: Winner: 62 dB
Weight
183 lbs
Winner: Winner: 47.4 lbs
Run time @50% load
Winner: Winner: 9 h
4.5 h
Run time @25% load
Not available—
6 h
Fuel tank
7.5 gal
1 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
27.3 x 27.4 x 28.5
18.9 x 11.4 x 17.3
Electrical
Voltage (AC)
120/240
120
Voltage (DC)
Not available—
5
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
Not available—
Engine
Engine
Dewalt OHV 4-stroke, 420 cc
145 cc Dinking OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Recoil
Warranty
Warranty
3 years
1 years
Power by fuel
GasolineNot available—Not available—
Running watts
8000 W
3000 W
Starting watts
10000 W
3300 W
Running amps (120V)
Not available—
Not available—
Running amps (240V)
Not available—
Not available—
Peak amps (120V)
Not available—
Not available—
Peak amps (240V)
Not available—
Not available—
Run time @50% load
9 h
4.5 h
Run time @25% load
Not available—
6 h
Other
Data center
Not available—
Not available—
Indicators
false
true
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
Floating
UPC
696471074536
768494056087
Core / High-priority specs
Running Watts (Gasoline)
8000
3000
Starting Watts (Gasoline)
10000
3300
Runtime @ 50% Load (Gasoline)
9
4.5
Runtime @ 25% Load (Gasoline)
Not available—
6
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R)
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Dinking OHV 4-stroke
Engine Displacement
420
145
Engine Oil Type
Not available—
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available—
6
Runtime @ 50% Load (Gasoline)
9
4.5
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, battery charger, battery, and wheel kit
Funnel and tool kit
Warranty & identification
Commercial Warranty
3
Not available—
Part Number
DXGNR8000E
GE-3300A
Additional specs
Summary
The DEWALT DXGNR8000 is an 8,000-watt gasoline generator built for job sites and temporary power needs. Its dual-voltage output and heavy-duty construction handle both household circuits and professional equipment, making it suitable for contractors and homeowners managing extended outages or remote work.
The Genmax GM3300i is a 3000-watt gasoline inverter generator built for portability and clean power. At 47.4 lbs, it moves easily between campsites, job sites, and homes. The 3300-watt peak output handles startup surges on power tools and appliances, while the inverter technology protects laptops and phones from voltage spikes.
  • Most Powerful
    DEWALT DXGNR8000
    8000W running
  • Quietest
    Genmax GM3300i
    62 dB
  • Longest Runtime
    DEWALT DXGNR8000
    9h at 50% load
Where to buy
Prices can change. We update these automatically.
DEWALT DXGNR8000
Store links
No links yet.
Genmax GM3300i
Store links
No links yet.
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