All GeneratorsDealsCompareMy PicksGenerator Finder
All GeneratorsDealsCompareMy PicksGenerator Finder
  • Guides
  • Blog
  • FAQ
  • Rankings

Helping you find the right generator for your needs with objective specs and clear comparisons.

Categories

  • Quiet Generators
  • Inverter Generators
  • Dual-Fuel
  • Home Backup
  • Portable
  • All Brands

Resources

  • Rankings
  • Compare Generators
  • Generator Finder
  • Deals
  • Buying Guides
  • Blog
  • FAQ
  • About Us

Legal

  • Terms of Service
  • Privacy Policy
  • DMCA
  • Disclosures

Disclosure

RightGenerator is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no cost to you.

© 2026 RightGenerator. All rights reserved.

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.

  • Powerhorse s9500d
  • Ryobi RY906500S
  • Model s9500d
    Model s9500d

    Powerhorse 7,500W Dual-Fuel Generator

    7500W
    Running
    97 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
SpecificationPowerhorse s9500dRyobi RY906500S
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 7500 W
6500 W
Starting watts
Winner: Winner: 9500 W
8125 W
Noise (lower limit)
97 dB
Winner: Winner: 72 dB
Weight
220 lbs
Winner: Winner: 195 lbs
Run time @50% load
Winner: Winner: 10 h
Winner: Winner: 10 h
Run time @25% load
Not available—
Not available—
Fuel tank
6.6 gal
6 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
29.3 x 26.7 x 26.4
39 x 29 x 24.5
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
5V
Not available—
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<23% %
20 %
Engine
Engine
420 cc OHV 4-stroke
420 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Recoil
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
7500 W
6500 W
Starting watts
9500 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
10 h
10 h
Run time @25% load
Not available—
Not available—
PropaneNot available—Not available—
Running watts
6750 W
Not available—
Starting watts
8550 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
5 h
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
Bonded to frame
Bonded to frame
UPC
840321763990
46396023483
Core / High-priority specs
Running Watts (Gasoline)
7500
6500
Running Watts (Propane)
6750
Not available—
Starting Watts (Gasoline)
9500
8125
Starting Watts (Propane)
8550
Not available—
Runtime @ 50% Load (Gasoline)
10
10
Runtime @ 50% Load (Propane)
5
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) GFCI1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
420 cc OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
420
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10
10
Runtime @ 50% Load (Propane)
5
Not available—
Safety & compliance
Overload Protection System
Not available—
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Not available—
Starting Components
Starting Components
Not available—
Fuel Connection Components
propane hose
Not available—
Included Accessories
Funnel, tool kit, propane hose, and wheel kit
Oil, tool kit, and wheel kit
Warranty & identification
Commercial Warranty
2
3
Additional specs
Summary
The Powerhorse s9500d is a dual-fuel portable generator offering 9,500 surge watts and 7,500 rated watts, suitable for various applications including emergency power and outdoor events.
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
    Powerhorse s9500d
    7500W running
  • Quietest
    Ryobi RY906500S
    72 dB
  • Longest Runtime
    Powerhorse s9500d
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
Powerhorse s9500d
Store links
No links yet.
Ryobi RY906500S
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.