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

  • Genmax GM3300i
  • VEVOR R2500iSP
  • Model GM3300i
    Model GM3300i

    Genmax 3,000W Gas Generator

    3000W
    Running
    62 dB
    Noise
    View details
  • Model R2500iSP
    Model R2500iSP

    VEVOR 2,300W Gas Generator

    2300W
    Running
    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
SpecificationGenmax GM3300iVEVOR R2500iSP
General
Product type
Generator
Not available
Fuel
Gasoline
Gasoline
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 3000 W
2300 W
Starting watts
Winner: Winner: 3300 W
3000 W
Noise (lower limit)
Winner: Winner: 62 dB
Not available
Weight
Winner: Winner: 47.4 lbs
55.1 lbs
Run time @50% load
4.5 h
Winner: Winner: 5 h
Run time @25% load
6 h
Not available
Fuel tank
1 gal
1.2 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
18.9 x 11.4 x 17.3
20.5 x 12.6 x 17.7
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
Not available
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available
Not available
Engine
Engine
145 cc Dinking OHV 4-stroke
122cc four-stroke engine
Alternator
Not available
Not available
Starting system
Recoil
Not available
Warranty
Warranty
1 years
Not available
Power by fuel
GasolineNot availableNot available
Running watts
3000 W
2300 W
Starting watts
3300 W
3000 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
4.5 h
5 h
Run time @25% load
6 h
Not available
Other
Data center
Not available
Not available
Indicators
true
Not available
Compliance
EPA, ANSI/PGMA G300-2023
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Floating
Not available
UPC
768494056087
Not available
Core / High-priority specs
Running Watts (Gasoline)
3000
2300
Starting Watts (Gasoline)
3300
3000
Runtime @ 50% Load (Gasoline)
4.5
5
Runtime @ 25% Load (Gasoline)
6
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
Not available
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Dinking OHV 4-stroke
Not available
Engine Displacement
145
122
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
6
Not available
Runtime @ 50% Load (Gasoline)
4.5
5
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Not available
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Funnel and tool kit
Not available
Warranty & identification
Part Number
GE-3300A
R2500iSP
Additional specs
Summary
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.
The VEVOR R2500iSP is a gasoline generator with a rated wattage of 2300 and a peak wattage of 3000.
  • Most Powerful
    Genmax GM3300i
    3000W running
  • Quietest
    Genmax GM3300i
    62 dB
  • Longest Runtime
    VEVOR R2500iSP
    5h at 50% load
Where to buy
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Genmax GM3300i
Store links
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VEVOR R2500iSP
Store links
No links yet.
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