Dell Inspiron 17 3781 Specs Price and reviews | 3000 Series

Dell Inspiron 17 3781 is a good laptop of 17 3000 series capable of performing heavy computing as its integrated with Intel 7th Generation processor and SODIMM slots Dualchannel DDR4 RAM with speed Up to 2133 MHz, and depending on the configuration you choose from its customization, the things you can do range from a simple worksheet task or some development tasks.
It has a punchy and bright High Definition Plus (HD+) IPS display for a budget laptop. You can surely enjoy movies and other forms of entertainment on its 17.3 inches bigger screen. Price starting from $500 and goes up as laptop is more customized for higher specs

Dell Inspiron 17 3781 - Lid Closed Side views

Dell Inspiron 17 3781 – Lid Closed Side views

Dell Inspiron 17 3781 -Bottom

Dell Inspiron 17 3781 -Bottom

Dell Inspiron 17 3781 Laptop

Dell Inspiron 17 3781 Laptop

Dell Inspiron 17 3781 - Keyboard Top View

Dell Inspiron 17 3781 – Keyboard Top View

Dell Inspiron 3781 Technical Specifications:

Laptop Info

Laptop About
Brand Dell
Series Dell Inspiron 3000
Model Dell Inspiron 17 3781
Price Starts from $500
Color Black, Silver
Release Date November 2020

Processor Specifications

Processors
Intel Celeron Processor
  • Processors: Intel Celeron Processor
  • Wattage: 15 W
  • Core count: 2
  • Thread count: 4
  • Speed: Up to 1.8 GHz
  • L2 Cache: 512 KB
  • L3 Cache: 2 MB
  • Integrated graphics: Intel HD Graphics 610
Intel Pentium Gold
  • Processors: Intel Pentium Gold
  • Wattage: 15 W
  • Core count: 4
  • Thread count: 8
  • Speed: Up to 2.2 GHz
  • L2 Cache: 512 KB
  • L3 Cache: 2 MB
  • Integrated graphics: Intel HD Graphics 610
7th Generation Intel Core i3
  • Processors: 7th Generation Intel Core i3
  • Wattage: 15 W
  • Core count: 2
  • Thread count: 4
  • Speed: Up to 2.3 GHz
  • L2 Cache: 512 KB
  • L3 Cache: 3 MB
  • Integrated graphics: Intel HD Graphics 620
7th Generation Intel Core i5
  • Processors: 7th Generation Intel Core i5
  • Wattage: 15 W
  • Core count: 2
  • Thread count: 4
  • Speed: Up to 3.1 GHz
  • L2 Cache: 512 KB
  • L3 Cache: 3 MB
  • Integrated graphics: Intel HD Graphics 620
7th Generation Intel Core i7
  • Processors: 7th Generation Intel Core i7
  • Wattage: 15 W
  • Core count: 2
  • Thread count: 4
  • Speed: Up to 3.5 GHz
  • L2 Cache: 512 KB
  • L3 Cache: 4 MB
  • Integrated graphics: Intel HD Graphics 620

Operating System

Operating System
Operating System
  • Windows 10 Home (64-bit)
  • Windows 10 Professional (64-bit)
  • Ubuntu

Chipset

Chipset
Intel Celeron ProcessorIntel Pentium Gold
  • Processor
    • Intel Celeron Processor
    • Intel Pentium Gold
  • Chipset: Integrated in the processor
  • DRAM bus width: 64-bit
  • Flash EPROM: 16 MB
  • PCIe bus: Up to Gen2.0
  • External bus frequency: 4 GT/s
7th Generation Intel Core i3/i5/i7
  • Processor: 7th Generation Intel Core i3/i5/i7
  • Chipset: Integrated in the processor
  • DRAM bus width: 64-bit
  • Flash EPROM: 16 MB
  • PCIe bus: Up to Gen3.0
  • External bus frequency: 4 GT/s

Memory (RAM)

Memory specifications
Slots

Two SODIMM slots

Type

Dual-channel DDR4

Speed

Up to 2133 MHz

Maximum memory

16 GB

Minimum memory

4 GB

Memory size per slot

4 GB, 8 GB, 16 GB

Configurations supported
  • 4 GB DDR4 at 2133 MHz (1 x 4 GB)
  • 8 GB DDR4 at 2133 MHz (2 x 4 GB)
  • 8 GB DDR4 at 2133 MHz (1 x 8 GB)
  • 12 GB DDR4 at 2133 MHz (1 x 8 GB + 1 x 4 GB)
  • 16 GB DDR4 at 2133 MHz (2 x 8 GB)
  • 16 GB DDR4 at 2133 MHz (1 x 16 GB)

Storage

Storage specifications
One 2.5-inch hard drive SATA AHCI, up to 6 Gbps

  • 500 GB (5400 RPM/7200 RPM)
  • 1 TB (5400 RPM/7200 RPM)
  • 2 TB (5400 RPM)
One M.2 2280 solid-state drive
  • PCIe Gen3.0x4 NVMe, up to 32 Gbps for 7th Generation Intel Core i3/i5/i7 processors
  • PCIe Gen2.0x4, up to 16 Gbps for Intel Celeron and Pentium Gold processors

, Up to 256 GB

Optical drive 9.5 mm DVD-RW, One slimline DVD-RW

Dimensions and Weight

Dimensions and weight
Height:
Front

21.86 mm (0.86 in.)

Rear

25.60 mm (1.01 in.)

Width

415.40 mm (16.35 in.)

Depth

279.20 mm (10.99 in.)

Weight

3.03 kg (6.68 lb)

Display (Screen)

Display specifications
High Definition Plus (HD+)
  • Type: High Definition Plus (HD+)
  • Panel technology: Twisted Nematic (TN)
  • Luminance (typical): 220 nits
  • Dimensions (Active area):
  • Height: 214.92 mm (8.46 in.)
  • Width: 382.08 mm (15.04 in.)
  • Diagonal: 438.38 mm (17.26 in.)
  • Native resolution: 1600 x 900 (HD+)
  • Megapixels: 1.44
  • Pixels per inch (PPI): 106
  • Contrast ratio (min): 400:1
  • Response time (max): 16 ms
  • Refresh rate: 60 Hz
  • Horizontal view angle
    • Left: 40 degrees
    • Right: 40 degrees
  • Vertical view angle
    • Top: 10 degrees
    • Bottom: 30 degrees
  • Pixel pitch: 0.2388 mm
  • Power consumption (maximum): 4.4 W
  • Anti-glare vs glossy finish: Anti-glare
  • Touch options: Not supported
Full High Definition (FHD)
  • Type: Full High Definition (FHD)
  • Panel technology: Wide Viewing Angle (WVA)
  • Luminance (typical): 300 nits
  • Dimensions (Active area):
  • Height: 214.81 mm (8.46 in.)
  • Width: 381.89 mm (15.04 in.)
  • Diagonal: 438.16 mm (17.25 in.)
  • Native resolution: 1920 x 1080 (FHD)
  • Megapixels: 2.07
  • Pixels per inch (PPI): 127
  • Contrast ratio (min): 500:1
  • Response time (max): 35 ms
  • Refresh rate: 60 Hz
  • Horizontal view angle
    • Left: 80 degrees
    • Right: 80 degrees
  • Vertical view angle
    • Top: 80 degrees
    • Bottom: 80 degrees
  • Pixel pitch: 0.1989 mm
  • Power consumption (maximum): 8 W
  • Anti-glare vs glossy finish: Anti-glare
  • Touch options: Not supported

Video | Graphics (Discrete graphics)

Video specifications
AMD Radeon 520 One HDMI 1.4b port, 2 GB, GDDR5

Video | Graphics (Integrated graphics)

Video specifications
Intel HD Graphics 610 One HDMI 1.4b port, Shared system memory

  • Intel Celeron processor
  • Intel Pentium Gold
Intel HD Graphics 620 One HDMI 1.4b port, Shared system memory, 7th Generation Intel Core i3/i5/i7

Battery Specifications

Battery specifications
Type

3-cell “smart” lithium-ion (42 WHr)

Voltage

11.40 VDC

Weight (maximum)

0.20 kg (0.44 lb)

Dimensions:
Height

5.90 mm (0.23 in.)

Width

184.15 mm (7.25 in.)

Depth

90.73 mm (3.57 in.)

Temperature range:
Operating

0°C to 35°C (32°F to 95°F)

Storage

–40°C to 65°C (–40°F to 149°F)

Operating time Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.
Charging time (approximate)

4 hours (when the computer is off)

Life span (approximate) 300 discharge/charge cycles
Coin-cell battery

CR-2032

Operating time Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.

Camera (Web Cam) Specifications

Camera specifications
Number of cameras

One

Type

HD RGB camera

Location

Front (above the LCD screen)

Sensor type

CMOS sensor technology

Resolution:
Still image

0.92 megapixel

Video

1280 x 720 (HD) at 30 fps

Diagonal viewing angle

78.6 degrees

Audio Specifications

Audio specifications
Controller

Realtek ALC3246

Stereo conversion

Supported

Internal interface

High-definition audio

External interface

Headset combo jack (stereo headphones/microphone-in)

Speakers

Two

Internal speaker amplifier

Supported

External volume controls

Keyboard shortcuts

Speaker output:
Average

2 W

Peak

2.5 W

Subwoofer output

Not supported

Microphone

Supported

Media-card Reader

Media-card reader specifications
Type

One SD-card slot

Cards supported
  • Secure Digital (SD)
  • Secure Digital High Capacity(SDHC)
  • Secure Digital Extended Capacity(SDXC)

Ports and connectors

Ports and connectors
Network

One RJ-45 port

USB
  • Two USB 3.1 Gen 1 ports
  • One USB 2.0 port
Audio

One headset (headphone and microphone combo) port

Video

One HDMI 1.4b port

Media card reader

One SD-card slot

Docking port

Not supported

Power adapter port

One 4.5 mm x 2.9 mm DC in

Security

One security-cable slot (wedge-shaped)

Internal:
M.2
  • One M.2 slot for Wi-Fi and Bluetooth combo card
  • One M.2 2280 slot for solid-state drive or Intel Optane

Communication Wired module

Ethernet specifications
Model number

Ethernet controller integrated to the system board

Transfer rate

10/100 Mbps

Communication wireless module

Wireless module specifications
Qualcomm QCA9565 (DW1707)
  • Model number: Qualcomm QCA9565 (DW1707)
  • Transfer rate: Up to 150 Mbps
  • Frequency bands supported: Dual band 2.4 GHz
  • Wireless standards: WiFi 802.11b/g/n
  • Encryption
    • 64-bit/128-bit WEP
    • AES-CCMP
    • TKIP
  • Bluetooth: Bluetooth 4.0
Qualcomm QCA9377 (DW1810)
  • Model number: Qualcomm QCA9377 (DW1810)
  • Transfer rate: Up to 433 Mbps
  • Frequency bands supported: Dual band 2.4 GHz/5 GHz
  • Wireless standards: WiFi 802.11a/b/g/n/ac
  • Encryption
    • 64-bit/128-bit WEP
    • AES-CCMP
    • TKIP
  • Bluetooth: Bluetooth 4.2
Qualcomm QCA61x4A (DW1820)
  • Model number: Qualcomm QCA61x4A (DW1820)
  • Transfer rate: Up to 867 Mbps
  • Frequency bands supported: Dual band 2.4 GHz/5 GHz
  • Wireless standards: WiFi 802.11a/b/g/n/ac
  • Encryption
    • 64-bit/128-bit WEP
    • AES-CCMP
    • TKIP
  • Bluetooth: Bluetooth 4.2

keyboard

Keyboard specifications
Type
  • Standard keyboard
  • Backlit keyboard (optional)
Layout

QWERTY

Number of keys
  • United States and Canada: 101 keys
  • United Kingdom: 102 keys
  • Japan: 105 keys
Size

X = 19.05 mm key pitch

Y = 18.05 mm key pitch

Shortcut keys

Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions. To type the alternate character, press Shift and the desired key. To perform secondary functions, press Fn and the desired key.

TouchPad

Touchpad specifications
Resolution:
Horizontal

3215

Vertical

2429

Dimensions:
Horizontal

105 mm (4.13 in.)

Vertical

80 mm (3.15 in.)

Fingerprint Reader

Fingerprint reader specifications
Sensor technology

Capacitive

Sensor resolution

500 PPI

Sensor area

5.50 mm x 4.50 mm (0.22 in. x 0.17 in.)

Sensor pixel size

108 pixels x 88 pixels

Charger | Power Adapter

Power adapter specifications
E4 45 W
  • Type: E4 45 W
  • Diameter (connector): 4.5 mm x 2.9 mm
  • Input voltage: 100 VAC–240 VAC
  • Input frequency: 50 Hz–60 Hz
  • Input current (maximum): 1.30 A
  • Output current (continuous): 2.31 A
  • Rated output voltage: 19.50 VDC
  • Temperature range:
  • Operating: 0°C to 40°C (32°F to 104°F)
  • Storage: –40°C to 70°C (–40°F to 158°F)
E4 65 W
  • Type: E4 65 W
  • Diameter (connector): 4.5 mm x 2.9 mm
  • Input voltage: 100 VAC–240 VAC
  • Input frequency: 50 Hz–60 Hz
  • Input current (maximum): 1.60 A/1.70 A
  • Output current (continuous): 3.34 A
  • Rated output voltage: 19.50 VDC
  • Temperature range:
  • Operating: 0°C to 40°C (32°F to 104°F)
  • Storage: –40°C to 70°C (–40°F to 158°F)
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