Lenovo T420 (4236-RM8) vs Lenovo T420 (4242-AL4)

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Summary

Processor Family

Intel Core i5
(2nd Gen)
Intel Core i7
(2nd Gen)

Clock Speed

N/A
2.2 Ghz

Capacity

4 GB RAM
4 GB RAM

RAM Features

DDR3
1333 Mhz
DDR3

Hard Disk

320 GB HDD
500 GB HDD

Hard Disk Features

SATA
7200 RPM
SATA
7200 RPM

Display Size

14.0 inches
(35.56 cm)
15.6 inches
(39.62 cm)

Display Features

HD Anti-glare Display
HD LCD Display

OS

Windows 7
Windows 7

Type

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

User Ratings

3.9/5
(34 ratings)
N/A

General Information

Brand

Lenovo
Lenovo

Model

T420 (4236-RM8)
T420 (4242-AL4)

Thickness

30.5 Millimeter thickness
N/A

Dimensions (WxDxH)

340.5 x 233 x 30.5  mm
N/A

Weight

2.17 Kg weight
N/A

Colors

Black
Black

Operating System

Windows 7 Professional
Windows 7 Professional

Operating System Type

64-bit
64-bit

Display Details

Display Size

14.0 Inches  (35.56 cm)
15.6 Inches  (39.62 cm)

Display Resolution

1366 x 768 Pixels
1600 x 900 Pixels

Pixel Density

112 ppi
118 ppi

Display Type

LED
LCD

Display Features

HD Anti-glare Display
HD LCD Display

Display Touchscreen

No
No

Performance

Processor

Intel Core i5-2520M

2nd Gen
Intel Core i7-2720QM

2nd Gen

Clock-speed

N/A
2.2 Ghz

Chipset

Intel HM65 Express
Intel HM65 Express

Graphic Processor

Intel HD 3000
NVIDIA NVS 4200M

Graphics Memory

N/A
1 GB

Memory

Capacity

4 GB
4 GB

RAM type

DDR3
DDR3

RAM speed

1333 Mhz
N/A

Memory Slots

2 DIMM
2

Expandable Memory

8 GB
8 GB

Memory Layout

N/A
1 x 4 Gigabyte

Storage

HDD Capacity

320 GB
500 GB

HDD Speed(RPM)

7200 RPM
7200 RPM

HDD type

SATA
SATA

Battery

Battery Cell

6 Cell
9 Cell

Battery type

Li-Ion
Li-Ion

Power Supply

65 W
65 W AC Adapter W

Battery Life

4 Hrs
3 Hrs

Networking

Wireless LAN

802.11 a/g/n
802.11 a/g/n

Wi-Fi Version

4
4

Bluetooth

Yes
Yes

Bluetooth Version

3.0
N/A

Other Networking Options

Multi Card Slot : 4-in-1 Card Reader (MMC SD SDHC SDXC)
N/A

Ports

USB 2.0 slots

2
2

SD Card Reader

Yes
N/A

Ethernet Ports

1
1

Headphone Jack

Yes
N/A

Microphone Jack

Yes
N/A

VGA Port

Yes
N/A

Multimedia

Web-cam

Yes
Yes

Web-cam Resolution

0.3
0.3 MP

Secondary cam(Rear-facing)

No
No

Audio Solution

HD Audio Solution
N/A

Speakers

Stereo speakers
Stereo Speakers

In-built Microphone

Yes
N/A

Peripherals

Optical Drive

DVD RW Drive
DVD RW Drive

Drive Type

DVD Writer
DVD Writer

Pointing Device

Touchpad
Touchpad

Keyboard

UltraNav Keyboard
UltraNav Keyboard

Others

Warranty

3 Years
3 Years

Sales Package

Laptop Battery AC Adapter User Guides and Manuals
Laptop Battery AC Adapter User guide and Manuals