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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.

  • A-iPower GXS5000
  • Yamaha EF6300iSDE
  • Model GXS5000
    Model GXS5000

    A-iPower 4,000W Gas Generator

    4000W
    Running
    68 dB
    Noise
    View details
  • Model EF6300iSDE
    Model EF6300iSDE

    Yamaha 5,500W Gas Generator

    5500W
    Running
    58 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
SpecificationA-iPower GXS5000Yamaha EF6300iSDE
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoYes
Parallel capableNoNo
RV readyYesNo
Running watts
4000 W
Winner: Winner: 5500 W
Starting watts
5000 W
Winner: Winner: 6300 W
Noise (lower limit)
68 dB
Winner: Winner: 58 dB
Weight
Winner: Winner: 111.6 lbs
216 lbs
Run time @50% load
Not available—
Winner: Winner: 5 h
Run time @25% load
20 h
13.3 h
Fuel tank
6.3 gal
4.5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24 x 23.6 x 24
30.7 x 24.3 x 27.2
Electrical
Voltage (AC)
120
120/240
Voltage (DC)
Not available—
Not available—
GFCI outletsNoYes
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
23 %
<4.0% %
Engine
Engine
223 cc OHV 4-stroke, cast iron sleeve.
357 cc Yamaha MZ360 OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil
Electric
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
4000 W
5500 W
Starting watts
5000 W
6300 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
Not available—
Not available—
Run time @25% load
20 h
13.3 h
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Not available—
true
UPC
850016881298
765053849371
Core / High-priority specs
Running Watts (Gasoline)
4000
5500
Starting Watts (Gasoline)
5000
6300
Runtime @ 25% Load (Gasoline)
20
13.3
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
223
357
Cylinder Sleeve
cast iron sleeve
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
20
13.3
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, and wheel kit.
Battery
Warranty & identification
Commercial Warranty
3
Not available—
Part Number
Not available—
EF63ISDEX
Additional specs
Summary
The A-iPower GXS5000 is a 4000-watt gasoline generator built for homeowners and RV users who need reliable backup power without excessive noise. With 5000 watts of starting power, it can kick-start larger appliances like air conditioners and well pumps, then sustain 4000 watts of continuous output for essential devices. This wattage class handles a full home backup scenario or powers a job site with moderate tool use, but not heavy industrial equipment or multiple high-draw appliances simultaneously. At 68 decibels, the GXS5000 runs quieter than most generators in its class. The 6.3-gallon fuel tank delivers 20 hours of runtime at 25 percent load, meaning light-duty use like charging devices or running a refrigerator stretches a full tank across an entire day. The recoil start system and included wheel kit make this a grab-and-go option for users who value simplicity over push-button convenience.
The Yamaha EF6300iSDE is a powerful and advanced inverter generator, ideal for emergency backup, recreational use, and DIY projects. It offers a maximum output of 6300 watts and operates quietly between 58 to 64 decibels.
  • Most Powerful
    Yamaha EF6300iSDE
    5500W running
  • Quietest
    Yamaha EF6300iSDE
    58 dB
  • Longest Runtime
    Yamaha EF6300iSDE
    5h at 50% load
Where to buy
Prices can change. We update these automatically.
A-iPower GXS5000
Store links
No links yet.
Yamaha EF6300iSDE
Store links
No links yet.
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