Lenovo Z51-70 (80K600VVIN) vs Dell E7240 (ASD4562389)

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Summary

Processor Family

Intel Core i7
(5th Gen)
Intel Core i7
(4th Gen)

Clock Speed

2.4 Ghz
2.1 Ghz

Capacity

8 GB RAM
4 GB RAM

RAM Features

DDR3
1600 Mhz
DDR3
1600 Mhz

Hard Disk

1 TB HDD
128 GB SSD

Hard Disk Features

SATA
5400 RPM
N/A

Display Size

15.6 inches
(39.62 cm)
12.5 inches
(31.75 cm)

Display Features

Full HD TN GL
(Slim) Display
TFT Colour Display

OS

Windows 10
Windows 8.1

Type

(64-bit) OS
(64-bit) OS

User Ratings

3.9/5
(201 ratings)
2.7/5
(6 ratings)

General Information

Brand

Lenovo
Dell

Model

Z51-70 (80K600VVIN)
E7240 (ASD4562389)

Thickness

24.6 Millimeter thickness
20.0 Millimeter thickness

Dimensions (WxDxH)

384 x 265 x 24.6  mm
310 x 211 x 20.0  mm

Weight

2.3 Kg weight
1.36 Kg weight (Light-weight)

Colors

Black
Silver

Operating System

Windows 10
Windows 8.1 Professional

Operating System Type

64-bit
64-bit

Display Details

Display Size

15.6 Inches  (39.62 cm)
12.5 Inches  (31.75 cm)

Display Resolution

1920 x 1080 Pixels
1920 x 1080 Pixels

Pixel Density

141 ppi
176 ppi

Display Type

LED
TFT

Display Features

Full HD TN GL(Slim) Display
TFT Colour Display

Display Touchscreen

No
Yes

Performance

Processor

Intel Core i7-5500U

5th Gen
Intel Core i7-4600u

4th Gen

Clock-speed

2.4 Ghz
2.1 Ghz

Graphic Processor

AMD Tropo XT2
NVIDIA GeForce GT 640M

Graphics Memory

4 GB
2 GB

Memory

Capacity

8 GB
4 GB

RAM type

DDR3
DDR3

RAM speed

1600 Mhz
1600 Mhz

Memory Slots

2 DIMM
2 DIMM

Expandable Memory

16 GB
8 GB

Memory Layout

1 x 8 Gigabyte
1 x 4 Gigabyte

Storage

HDD Capacity

1 TB
N/A

HDD Speed(RPM)

5400 RPM
N/A

HDD type

SATA
N/A

SSD Capacity

N/A
128 GB

Battery

Battery Cell

4 Cell
4 Cell

Battery type

Li-Ion
Li-Ion

Power Supply

N/A
90 W AC Adapter W

Battery Life

4 Hrs
4.5 Hrs

Networking

Wireless LAN

802.11 a/b/g/n/ac
802.11 a/b/g/n/ac

Wi-Fi Version

5
5

Bluetooth

Yes
Yes

Bluetooth Version

4.0
4.0

Other Networking Options

N/A
Docking Connector DisplayPort 1 Full and 2 Half Mini Card Slots

Ports

USB 3.0 slots

2
3

USB 2.0 slots

1
N/A

SD Card Reader

Yes
Yes

Headphone Jack

Yes
Yes

Microphone Jack

Yes
Yes

VGA Port

Yes
N/A

Multimedia

Web-cam

Yes
Yes

Web-cam Resolution

1.0 MP
N/A

Video Recording

720p HD
N/A

Secondary cam(Rear-facing)

No
No

Audio Solution

HD Audio Solution
HD Audio Solution

Speakers

2 x 2.5 W JBL Stereo Speakers
High Quality Speakers

Sound Technologies

Dolby DS 1.0 Home Theater
N/A

In-built Microphone

Yes
Yes

Microphone Type

N/A
Array microphone

Peripherals

Optical Drive

9.0MM Super Multi (Tray In)
CD/DVD writer

Drive Type

N/A
CD Writer

Optical Read

N/A
8x

Optical Write

N/A
8x

Pointing Device

Touchpad with Multi-touch Gesture support
Touchpad with multi-touch gesture support

Keyboard

AccuType keyboard
Standard Keyboard

Backlit Keyboard

Yes
N/A

Fingerprint Scanner

No
No

Others

Warranty

1 Year
3 Years

Sales Package

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