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Dell Inspiron 17R 7720 Laptop (N/A/8 GB/1 TB/Windows 7 Home Premium) vs Dell Inspiron 15 N3521 Laptop (Intel Core i3 3rd Gen/2 GB/500 GB/Windows 8 )

Summary
59%
55%
Clock Speed

2.3 Ghz

1.8 Ghz

RAM

8 GB RAM

2 GB RAM

RAM Features

DDR3

DDR3, 1600 Mhz

Storage

1 TB HDD

500 GB HDD

Hard Disk Features

SATA, 5400 RPM

SATA, 5400 RPM

Display size

17.3" (43.94 cm) (Large)

15.6" (39.62 cm) (Large)

Display Features

HD Clear Super View LED Backlit Display

HD LED Backlit Display With True Life

Operating System

Windows 7

Windows 8

Operating System Type

(64-bit) OS

(64-bit) OS

Processor

N/A

Intel Core i3 3rd Gen

User Rating
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Dell Inspiron 17R 7720 Laptop is permanently discontinued.
Dell Inspiron 15 N3521 Laptop is permanently discontinued.
General Information
Brand

Dell

Dell

Model

17R 7720

N3521

Dimensions(WxDxH)

416 x 274 x 30.5  mm

376 x 259 x 31.3  mm

Weight

3.3 Kg weight

2.2 Kg weight

Colors

Silver Black

Black

Operating System

Windows 7 Home Premium

Windows 8

Operating System Type

64-bit

64-bit

Display Details
Display Size

17.3 Inches (43.94 cm)

15.6 Inches (39.62 cm)

Display Resolution

1920 x 1080 Pixels

1366 x 768 Pixels

Pixel Density

127 ppi

100 ppi

Display Type

LED

LED

Display Features

HD Clear Super View LED Backlit Display

HD LED Backlit Display With True Life

Display Touchscreen

No

No

Performance
Processor

Intel Corei7-3610QM

Intel Core i3-3217U (3rd Gen)

Clock-speed

2.3 Ghz

1.8 Ghz

Chipset

Intel HM77 Express

Intel HM76 Express

Graphic Processor

NVIDIA GeForce GT 650M

Intel HD 4000

Graphics Memory

2 GB

Memory
Capacity

8 GB

2 GB

RAM type

DDR3

DDR3

RAM speed

1600 Mhz

Memory Slots

2

2 DIMM

Expandable Memory

8 GB

8 GB

Memory Layout

2 x 4 Gigabyte

1 x 2 Gigabyte

Storage
HDD Capacity

1 TB

500 GB

HDD Speed(RPM)

5400 RPM

5400 RPM

HDD type

SATA

SATA

Battery
Battery Cell

6 Cell

4 Cell Cell

Battery type

Li-Ion

Li-Ion

Power Supply

90 W AC Adapter W

90 W AC Adapter W

Battery Life

6 Hrs

5 Hrs

Networking
Wireless LAN

802.11 b/g/n

802.11 b/g/n

Wi-Fi Version

4

4

Bluetooth

Bluetooth Version

4.0

4.0

Ports
USB 3.0 slots

3

2

USB 2.0 slots

2

SD Card Reader

Ethernet Ports

1

1

Headphone Jack

Microphone Jack

VGA Port

Multimedia
Web-cam

Web-cam Resolution

1.0 MP

1.0 MP

Secondary cam(Rear-facing)

No

No

Audio Solution

HD Audio Solution

Speakers

Skullcandy Speakers

Stereo Speakers

Sound Technologies

Waves MaxxAudio 4

Waves MaxxAudio 4

In-built Microphone

Microphone Type

Digital Microphone

Digital Microphone

Peripherals
Optical Drive

Super Multi Dual Layer Drive

DVD RW Drive With Dual Layer Support

Drive Type

DVD Writer

Pointing Device

Touchpad with Multi-touch Gesture Support

Touchpad

Keyboard

Chiclet Keyboard

Standard Keyboard

Fingerprint Scanner

No

Others
Warranty

1 Year

1 Year

Lockport

Sales Package

Laptop, Battery, AC Adapter, User Guide

Laptop, Battery, AC Adapter, User Guide