Dell 17R N5721 vs Dell 15R 5521

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Summary

Processor Family

N/A
Intel Core i7
(3rd Gen)

Clock Speed

2.1 Ghz
2.0 Ghz

Capacity

8 GB RAM
8 GB RAM

RAM Features

DDR3
DDR3

Hard Disk

1 TB HDD
1 TB HDD

Hard Disk Features

SATA
5400 RPM
SATA
5400 RPM

Display Size

17.3 inches
(43.94 cm)
15.6 inches
(39.62 cm)

Display Features

Bright WLED Display
HD WLED Display

OS

Windows 7
Windows 7

Type

N/A
(64-bit) OS

General Information

Brand

Dell
Dell

Model

17R N5721
15R 5521

Thickness

31.9 Millimeter thickness
33.9 Millimeter thickness

Dimensions (WxDxH)

416 x 276 x 31.9  mm
376 x 259 x 33.9  mm

Weight

3.3 Kg weight
2.3 Kg weight

Colors

Moon Silver
Silver

Operating System

Windows 7 Home Premium
Windows 7 Home Premium

Operating System Type

N/A
64-bit

Display Details

Display Size

17.3 Inches  (43.94 cm)
15.6 Inches  (39.62 cm)

Display Resolution

1600 x 900 Pixels
1366 x 768 Pixels

Pixel Density

106 ppi
100 ppi

Display Type

LED
LED

Display Features

Bright WLED Display
HD WLED Display

Display Touchscreen

N/A
No

Performance

Processor

Core i7-3612QM
Intel Core i7-3537U

3rd Gen

Clock-speed

2.1 Ghz
2.0 Ghz

Chipset

Intel HM77 Express
Intel HM76 Express

Graphic Processor

Intel HD 4000
Intel HD 4000

Graphics Memory

1.5 GB
N/A

Memory

Capacity

8 GB
8 GB

RAM type

DDR3
DDR3

Memory Slots

2
2

Expandable Memory

16 GB
8 GB

Memory Layout

2 x 4 Gigabyte
2 x 4 Gigabyte

Storage

HDD Capacity

1 TB
1 TB

HDD Speed(RPM)

5400 RPM
5400 RPM

HDD type

SATA
SATA

Battery

Battery Cell

N/A
6 Cell

Battery type

Li-Ion
Li-Ion

Power Supply

65 W AC Adapter W
65 W AC Adapter W

Battery Life

2.5 Hrs
3 Hrs

Networking

Wireless LAN

802.11 b/g/n
802.11 b/g/n

Wi-Fi Version

4
4

Bluetooth

Yes
Yes

Bluetooth Version

4.0
4.0

Ports

USB 3.0 slots

4
2

USB 2.0 slots

N/A
2

SD Card Reader

Yes
Yes

Ethernet Ports

1
1

Headphone Jack

Yes
Yes

Microphone Jack

Yes
Yes

Multimedia

Web-cam

Yes
Yes

Web-cam Resolution

1.0 MP
1.0 MP

Secondary cam(Rear-facing)

No
No

Speakers

Stereo Speakers
Stereo Speakers

Sound Technologies

Waves MaxxAudio
Waves MaxxAudio 4

In-built Microphone

N/A
Yes

Microphone Type

N/A
Digital Microphone

Peripherals

Optical Drive

DVD RW Drive
N/A

Drive Type

DVD Writer
N/A

Pointing Device

Touchpad
Touchpad

Keyboard

Standard Keyboard
Standard Keyboard

Fingerprint Scanner

N/A
No

Others

Warranty

1 Year
1 Year

Lockport

N/A
Yes

Sales Package

Laptop Battery AC Adapter User Guide
Laptop Battery AC Adapter User Guide