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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 GM10500XiT
  • Ryobi RY906500S
  • Model GM10500XiT
    Model GM10500XiT

    Genmax 7,800W Tri-Fuel Generator

    7800W
    Running
    74 dB
    Noise
    View details
  • Model RY906500S
    Model RY906500S

    Ryobi 6,500W Gas Generator

    6500W
    Running
    72 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 GM10500XiTRyobi RY906500S
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Gasoline
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 7800 W
6500 W
Starting watts
Winner: Winner: 10500 W
8125 W
Noise (lower limit)
74 dB
Winner: Winner: 72 dB
Weight
Winner: Winner: 123.5 lbs
195 lbs
Run time @50% load
Not available
Winner: Winner: 10 h
Run time @25% load
13.5 h
Not available
Fuel tank
5.8 gal
6 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
25.2 x 19.8 x 21.3
39 x 29 x 24.5
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
12
Not available
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
≤3% %
20 %
Engine
Engine
312 cc OHV 4-stroke
420 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
1 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
7800 W
6500 W
Starting watts
10500 W
8125 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
10 h
Run time @25% load
13.5 h
Not available
Natural gasNot availableNot available
Running watts
6250 W
Not available
Starting watts
8500 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
Not available
Not available
PropaneNot availableNot available
Running watts
7000 W
Not available
Starting watts
8500 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
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
EPA, ANSI/PGMA G300-2023
EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Bonded to frame
UPC
760790248388
46396023483
Core / High-priority specs
Running Watts (Gasoline)
7800
6500
Running Watts (Propane)
7000
Not available
Running Watts (Natural Gas)
6250
Not available
Starting Watts (Gasoline)
10500
8125
Starting Watts (Propane)
8500
Not available
Starting Watts (Natural Gas)
8500
Not available
Runtime @ 50% Load (Gasoline)
Not available
10
Runtime @ 25% Load (Gasoline)
13.5
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) 1x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
312 cc OHV 4-stroke
OHV 4-stroke
Engine Displacement
312
420
Engine Oil Type
SAE 10W/30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
13.5
Not available
Runtime @ 50% Load (Gasoline)
Not available
10
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, cover, neutral bonding plug, battery, and wheel kit
Oil, tool kit, and wheel kit
Warranty & identification
Commercial Warranty
Not available
3
Additional specs
Summary
The Genmax GM10500XiT is a 7,800-watt tri-fuel inverter generator delivering whole-house backup power and jobsite capability. Its tri-fuel design runs on gasoline, propane, or natural gas, eliminating fuel sourcing constraints during emergencies. The inverter technology maintains THD at 3% or below, making it safe for laptops, medical devices, and smart TVs.
The Ryobi RY906500S is a 6,500-watt gasoline-powered portable generator equipped with a CO shutdown sensor for enhanced safety. It features a 6-gallon fuel tank providing up to 10 hours of runtime at 50% load, and includes multiple outlets for versatile power needs.
  • Most Powerful
    Genmax GM10500XiT
    7800W running
  • Quietest
    Ryobi RY906500S
    72 dB
  • Longest Runtime
    Ryobi RY906500S
    10h at 50% load
Where to buy
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Genmax GM10500XiT
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Ryobi RY906500S
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