Skip to content

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 GXS5000RD
  • Generac #7678 GP3600
  • Model GXS5000RD
    Model GXS5000RD

    A-iPower 4,000W Dual-Fuel Generator

    4000W
    Running
    68 dB
    Noise
    View details
  • Model #7678 GP3600
    Model #7678 GP3600

    Generac 3,600W Gas Generator

    3600W
    Running
    0 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 GXS5000RDGenerac #7678 GP3600
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 4000 W
3600 W
Starting watts
Winner: Winner: 5000 W
4500 W
Noise (lower limit)
Winner: Winner: 68 dB
0 dB
Weight
124 lbs
Winner: Winner: 105 lbs
Run time @50% load
Not available
Winner: Winner: 9.3 h
Run time @25% load
20 h
Not available
Fuel tank
6.3 gal
3.7 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24 x 23.6 x 24
24 x 22.5 x 21.3
Electrical
Voltage (AC)
120/240
120
Voltage (DC)
Not available
Not available
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
223 cc OHV 4-stroke, cast iron sleeve
Generac OHV 4-stroke 212
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
4000 W
3600 W
Starting watts
5000 W
4500 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
9.3 h
Run time @25% load
20 h
Not available
PropaneNot availableNot available
Running watts
3600 W
Not available
Starting watts
4500 W
Not available
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
11 h
Not available
Other
Data center
Digital Data Center
Not available
Indicators
true
false
Compliance
CARB, EPA, ANSI/PGMA G300-2023
CARB
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Not available
UPC
850016881328
696471074581
Core / High-priority specs
Running Watts (Gasoline)
4000
3600
Running Watts (Propane)
3600
Not available
Starting Watts (Gasoline)
5000
4500
Starting Watts (Propane)
4500
Not available
Rated Watts (Gasoline)
4000
Not available
Rated Watts (Propane)
3600
Not available
Peak Watts (Gasoline)
5000
Not available
Peak Watts (Propane)
4500
Not available
Runtime @ 50% Load (Gasoline)
Not available
9.3
Runtime @ 25% Load (Gasoline)
20
Not available
Runtime @ 25% Load (Propane)
11
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
223 cc OHV 4-stroke
OHV 4-stroke
Engine Displacement
223
212
Cylinder Sleeve
cast iron sleeve
Not available
Engine Oil Type
10W-30
10W-30 / SAE 30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
20
Not available
Runtime @ 50% Load (Gasoline)
Not available
9.3
Controls & display
Display Type
Digital Data Center
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Mobility Components
Wheels and folding handle
Yes
Starting Components
Battery and fob included
Oil, funnel, tool kit, and wheel kit
Included Accessories
Oil, funnel, tool kit, key fob, propane hose, RV adapter, battery, and wheel kit
Oil, funnel, tool kit, and wheel kit
Warranty & identification
Residential Warranty
3
Not available
Commercial Warranty
3
Not available
Part Number
GXS5000RD
7678
Additional specs
Summary
The A-iPower GXS5000RD is a 4,000-watt dual-fuel generator built around a 223cc OHV engine that runs on either gasoline or propane. On gasoline, it delivers 5,000 starting watts and 4,000 running watts. On propane, output drops to 4,500 starting and 3,600 running watts. This power level handles most household circuits, power tools, and mid-range job site equipment simultaneously. The dual-fuel design means users can switch between fuels based on availability, cost, or storage preference. A 6.3-gallon tank paired with 20-hour runtime at 25% load reduces refueling frequency during light-duty work. The 68 dBA noise level sits between a normal conversation and a vacuum cleaner, making it acceptable for residential neighborhoods with reasonable distance from neighbors.
The Generac GP3600 (#7678) is a 3600-watt gasoline generator built for homeowners and job sites needing reliable backup or portable power. Its 4500-watt peak capacity handles starting surges for tools and appliances, while the 3.7-gallon fuel tank delivers 9.3 hours of runtime at half load. Automatic voltage regulation protects sensitive electronics, and a three-year warranty covers ownership support.
  • Most Powerful
    A-iPower GXS5000RD
    4000W running
  • Quietest
    A-iPower GXS5000RD
    68 dB
  • Longest Runtime
    Generac #7678 GP3600
    9.3h at 50% load
Where to buy
Prices can change. We update these automatically.
A-iPower GXS5000RD
Store links
No links yet.
Generac #7678 GP3600
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.