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Lenovo T420
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Lenovo T420 2 Core Intel Core I5-2xxx 2.4GHz 4GB 320GB HDD 14" Laptop

Digitaltrends.com Editor's Choice pcworld.com_techhive.com Business Ready Laptopmag.com Editor's Choice computershopper.com Editor's Choice PC Mag Editor's Choice
2 Intel Core I5-2xxx 2.4GHz 4GB Mar 2013
Processor Cores Processor Family Processor Frequency Internal Memory Release Date
The ThinkPad T420 and T520 notebooks offer the best combination of thin and light mobility and top performance features a business class user would require. Top performing features include Second... More
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Lenovo ThinkPad T420s Review
Unboxing the Lenovo ThinkPad T420
Lenovo Thinkpad T420 HD Video-Preview
[HD] Lenovo Thinkpad T420 Review and Close Up!

7 Reasons For

Quite Fast On-Board Graphics Adapter Base Frequency

At 650 megahertz, the Lenovo T420 has a quite fast on-board graphics adapter base frequency compared to most of the other portable PCs that came out around the same time as the T420. The average on-board graphics adapter base frequency of laptops of this age and spec is 360MHz, and the on-board graphics adapter base frequencys range from 200MHz to 650MHz.

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Quite Fast On-Board Graphics Adapter Dynamic Frequency (max)

Across all the notebook PCs of this age and spec the on-board graphics adapter dynamic frequency (max)s range from 660MHz to 1,300MHz. The Lenovo T420 has one of the faster on-board graphics adapter dynamic frequency (max)s (1,200 megahertz) amongst medium processor cores portable PCs of this age.

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Lenovo Has Good Portable PC Reviews

Based on 5,057 owner and expert reviews, Lenovo has good reviews for its portable PCs. Lenovo also has good reviews specifically within its medium processor cores portable PCs range compared to other manufacturers.

Quite Fast Processor Frequency

At 2.4 gigahertz, the Lenovo T420 has a fairly fast processor frequency compared to most of the other medium processor cores portable PCs that were released more than two years ago. Portable PCs of a comparable age and spec to the T420 have processor frequencys of between 0.8GHz and 3.3GHz, and the average processor frequency is 2.1GHz.

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Intel Core I5 Processor Family

This notebook PC has an Intel Core i5-2xxx processor family, which is typical of many similar spec notebook PCs that came out more than two years ago.

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802.11n Wi-Fi Standards

This notebook PC has an 802.11a|802.11g|802.11n wi-Fi standards, which is the most commonly found wi-Fi standards on medium processor cores portable PCs that are a similar age to it.

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Nine Number of Battery Cellss

The Lenovo T420 is a nine number of battery cells portable PC.

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10 Reasons Against

Only Two Number of Displays Supported (on-Board Graphics)s

The Lenovo T420 is a portable PC that uses two number of displays supported (on-board graphics)s.

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Only One Maximum Number of PCI Express Lanes

The Lenovo T420 is a one maximum number of PCI Express lanes notebook PC. Most of the other laptops of a comparable spec and age to the T420 have between 1 and 15 maximum number of PCI Express laness.

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Does Not Have a Front Camera

The Lenovo T420 does not have a front camera, unlike most of the other medium processor cores portable PCs that have been around for around the same time as the T420.

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Does Not Have a Full-Size Keyboard

The Lenovo T420 does not have a full-size keyboard, although keep in mind that most of the other medium processor cores portable PCs that have been around for around the same time as the T420 also do not have a full-size keyboard.

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Only HDD Storage Media

This notebook PC has an HDD storage media, which is typical of many portable PCs that have been around for around the same time as it. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.

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Quite Small Hard Drive Capacity

The smallest hard drive capacity of portable PCs that have been available for a similar time to the T420 is 180GB and the biggest is 2TB. When compared to other medium processor cores portable PCs that were launched around the same time as the T420, the Lenovo T420's hard drive capacity of only 320 gigabytes is one of the smallest.

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Quite Slow Memory Clock Speed

The memory clock speeds of notebook PCs of a similar age and type to the T420 range from 800MHz to 1,800MHz. At only 1,333 megahertz, the Lenovo T420 has a quite slow memory clock speed compared to most of the other medium processor cores portable PCs that were released more than two years ago.

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Only 10 Mbit/s Ethernet LAN Data Rates

This portable PC ethernet LAN data rates, which is typical of many similar spec laptops that have been around for more than two years.

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Does Not Have a Touchscreen

The Lenovo T420 does not have a touchscreen. Most of the other medium processor cores portable PCs that have been around for a comparable time to the T420 also do not have a touchscreen.

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Very Low Speaker Power

With an speaker power of only 1 Watt, the Lenovo T420 has one of the lower speaker powers amongst portable PCs of this age. The speaker powers of portable PCs of this spec and age range from 1W to 11W, and the average speaker power is 1.7W.

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6 Other reasons to consider the Lenovo T420

Released Over Three Years Ago

It was over three years ago when Lenovo released the T420.

Average Weight

At 2.2 kilograms, the Lenovo T420 has a relatively standard weight compared to most of the other similar spec laptops that have been on the market for around the same time as the T420.

We think you might also be interested in some of the alternative 2.2kg heavy laptops currently available including the Lenovo T420[plb_1562255_price] which has better reviews.

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Average Internal Memory

With an internal memory of 4 gigabytes, the Lenovo T420 has a fairly average internal memory compared to most of the other notebook PCs of this age and spec.

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Average Display Diagonal

With a display diagonal of 14 inches, the Lenovo T420 has a relatively standard display diagonal compared to most of the other laptops that have been available for more than two years.

There are a number of other 14" notebook PCs currently available that you might want to consider including because of it's better review score, the HP EliteBook Folio 9470m[plb_1482433_price].

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Average Battery Life (max)

At 6 hours, the Lenovo T420 has a fairly standard battery life (max) compared to most of the other notebook PCs of this type and age.

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Average Total Storage Capacity

With a total storage capacity of 320 gigabytes, the Lenovo T420 has a fairly standard total storage capacity compared to most of the other portable PCs of a similar type and age to the T420.

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Specification

Design
Form Factor
Housing Material
Colour of Product
Product Type
Intel Segment Tagging
Processor
Processor Cores
Processor Family
Processor Frequency
Processor Manufacturer
Motherboard Chipset
Processor Socket
Processor Cache
System Bus Rate
Processor Threads
Processor Boost Frequency
Processor Model
Conflict Free Processor
Integrated 4G WiMAX
Processor Lithography
Maximum Number of PCI Express Lanes
Processor Operating Modes
PCI Express Slots Version
Bus Type
Processor Codename
Processor Series
Thermal Design Power (TDP)
Stepping
PCI Express Configurations
CPU Multiplier (bus/core Ratio)
Tjunction
Processor Cache Type
ECC Supported by Processor
FSB Parity
Memory
Internal Memory
Maximum Internal Memory
Memory Slots
Memory Clock Speed
Internal Memory Type
Storage
Total Storage Capacity
Storage Media
Compatible Memory Cards
Card Reader Integrated
Hard Drive Speed
Hard Drive Interface
Hard Drive Capacity
Number of Hard Drives Installed
Display
Display Diagonal
Display Resolution
Touchscreen
Contrast Ratio (typical)
Display Brightness
Aspect Ratio
3D
LED Backlight
Display Surface
HD Type
Graphics
On-Board Graphics Adapter Model
Discrete Graphics Adapter Model
On-Board Graphics Adapter ID
Number of Displays Supported (on-Board Graphics)
On-Board Graphics Adapter Dynamic Frequency (max)
On-Board Graphics Adapter Base Frequency
On-Board Graphics Adapter
On-Board Graphics Adapter Family
Discrete Graphics Adapter
Optical Drive
LightScribe
Optical Drive Type
Audio
Built-In Microphone
Built-In Subwoofer
Speaker Power
Number of Built-In Speakers
Audio System Direct 3D Sound
Audio System Full Duplex
Audio System
Networking
4G WiMAX
Cabling Technology
Data Network
WWAN
Ethernet LAN Data Rates
Ethernet LAN
Wi-Fi Standards
Wi-Fi
Networking Features
3G
Bluetooth
Ports & Interfaces
Line-in
TV Out Port
Mini DisplayPort/Thunderbolt Combo Port
SmartCard Slot
ExpressCard Slot
DC-In Jack
Docking Connector
S/PDIF Out Port
Microphone in
Headphone Outputs
Ethernet LAN (RJ-45) Ports
DVI Port
DisplayPorts Quantity
VGA (D-Sub) Ports Quantity
ESATA/USB 2.0 Ports Quantity
USB 2.0 Ports Quantity
LAN/VGA Combo Port
Performance
TV Tuner Integrated
Keyboard
Full-Size Keyboard
Spill Resistant Keyboard
Numeric Keypad
Keyboard Number of Keys
Keyboard Layout
Pointing Device
Software
Drivers Included
Operating System Architecture
Processor Special Features
Intel® Anti-Theft Technology (Intel® AT)
Intel® VPro™ Technology
Intel® My WiFi Technology (Intel® MWT)
Intel® Turbo Boost Technology
Intel® Hyper Threading Technology (Intel® HT Technology)
Intel® Wireless Display (Intel® WiDi)
Enhanced Intel SpeedStep Technology
InTru™ 3D Technology
Intel® Insider™
Intel Clear Video Technology
Intel® Quick Sync Video Technology
Intel® Clear Video HD Technology (Intel® CVT HD)
Intel Trusted Execution Technology
Supported Instruction Sets
Processor Code
Intel FDI Technology
Intel Dual Display Capable Technology
Intel Fast Memory Access
Embedded Options Available
Execute Disable Bit
Thermal Monitoring Technologies
CPU Configuration (max)
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)
Intel VT-X With Extended Page Tables (EPT)
Intel® Smart Cache
Intel 64
Processor Package Size
Intel Rapid Storage Technology
Intel Demand Based Switching
Intel Flex Memory Access
Intel Virtualization Technology (VT-X)
Idle States
Graphics & IMC Lithography
Intel Enhanced Halt State
Intel® AES New Instructions (Intel® AES-NI)
Intel Virtualization Technology for Directed I/O (VT-D)
Intel Identity Protection Technology Version
Processor ARK ID
Battery
Battery Life (max)
Number of Battery Cells
Battery Technology
Power
AC Adapter Input Voltage
AC Adapter Frequency
AC Adapter Power
Security
Password Protection Type
Trusted Platform Module (TPM)
Fingerprint Reader
Cable Lock Slot
Weight & Dimensions
Weight
Height (front) (imperial)
Depth (imperial)
Height (front)
Depth
Height (rear) (imperial)
Height (rear)
Width (imperial)
Width
Packaging Data
Handheld Remote Control
AC Adapter Included
Operational Conditions
Operating Altitude
Storage Relative Humidity (H-H)
Operating Relative Humidity (H-H)
Storage Temperature (T-T)
Operating Temperature (T-T)
Certificates
RoHS Compliance
Energy Star Certified
Technical Details
Built-In Optical Drive
Other Features
Internal Modem
Hot Keys
TV in Port
Graphics Adapter Family
Infrared Data Port
Power Requirements
HDD User Password
Display
Type

8 Awards

Digitaltrends.com Editor's Choice pcworld.com_techhive.com Business Ready tek.no Recommended Laptopmag.com Editor's Choice computershopper.com Editor's Choice insidehw.com Approved PC Mag Editor's Choice pcfoster.pl Recommended

Expert Reviews

(43)
1 June 2012

The Lenovo ThinkPad T420 is a notebook which will take you through fire and water. The most amazing spec is the battery and the most amazing feature is the keyboard. You'll have to refrain from...

23 April 2012

In a nutshell, the Lenovo ThinkPad T420s is a powerful business portable that's a pleasure to use, but not exactly a looker. With its contourless, black plastic body and sharp edges, it looks like... Read more…

Excellent performance
Great keyboard
Good build quality
Sharp screen
160GB SSD
Price
Battery life
Gets quite hot
Expensive
Disappointing battery life
23 April 2012

In a nutshell, the Lenovo ThinkPad T420s is a powerful business portable that's a pleasure to use, but not exactly a looker. With its contourless, black plastic body and sharp edges, it looks like... Read more…

26 March 2012

A powerful and versatile laptop, but poor battery life and business-specific graphics mean it should only appeal to professionals...

15 March 2012

Much of the ThinkPad's design ? and particularly the excellent keyboard ? is traditional, but it packs plenty of up-to-date specs too: Core i7 CPU, hybrid discrete/integrated graphics, solid-state...

« Prev 1 of 9 Next »

User Reviews

(67)
Reviewed 21 June 2013 by Greyowl

I use a T500 for work and got a T420 ( second hand ) at about 25% of the new price - as a backup and for the Nvideo grapics engine for CAE/FEA. I wouldn't be without these machines. OK reviewers... Read more…

Reviewed 24 December 2014 by Andrew Johns
(Verified Purchase)

Gave a lot of thought before buying this used but my worries were groundless. Laptop arrived well packed in its own protective bubble, and in a sturdy box, well insulated from any travel shocks !... Read more…

Reviewed 18 October 2014 by Toomas Laigna
(Verified Purchase)

Since I needed a good, reliable and not too slow professional machine for work and also enjoy playing games, I was faced with a choice: either buy a high-end laptop to fit both needs or slice the... Read more…

Reviewed 25 February 2015 by David Lammin
(Verified Purchase)

10 years or so using amazon and never done a review until now. I'm in 2nd year doing a degree in computing and needed a solid laptop, I decided on t420 and took a punt on refurbished one. Delivery... Read more…

Reviewed 9 February 2015 by Tomasz
(Verified Purchase)

Laptop is working fine, but looks like piece of s***, like someone was using axe to chop of all rubbers and switches. Battery with broken little hooks- gives 15 min work- you can buy replacement... Read more…

« Prev 1 of 14 Next »

Brochures and Manuals

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers code i52520, code i52520m, info 4236pa8, lenovo nw4p3, lenovo nw4p3u, lenovo i52520, lenovo nw4p3uk, lenovo i52520m, info len4236pa8, lenovo 4236pa8win81, code rflaplent420i54, lenovo lent4204gb24ghz320gbwin7, lenovo lent4204gb24ghz320gbwin7c, lenovo lent4204gb24ghz320gbwin7ce, lenovo lent4204gb24ghz320gbwin7cer, lenovo lent4204gb24ghz320gbwin7cert, lenovo lent4204gb24ghz320gbwin7certi, lenovo lent4204gb24ghz320gbwin7certif, lenovo lent4204gb24ghz320gbwin7certifi, lenovo lent4204gb24ghz320gbwin7certifie, lenovo lent4204gb24ghz320gbwin7certified
Barcodes 00642968333082, 00645743457300, 05060363473779, 05060490787251, 07253096159548, 07253291873744

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See How Other Laptops Compare to the Lenovo T420

EliteBook 840 G2 Notebook PC vs T420

HP EliteBook 840 G2 Notebook PC vs Lenovo T420
HP EliteBook 840 G2 Notebook PC
2 core Intel Core i5-5xxx 2.3GHz 8GB 180GB SSD 14"
Lenovo T420
2 core Intel Core i5-2xxx 2.4GHz 4GB 320GB HDD 14"
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12.00 Maximum Number of PCI Express Laness
4GB Bigger Internal Memory
A Lot Bigger Maximum Internal Memory
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Six Less Number of Battery Cellss

Lenovo ThinkPad T540 vs Lenovo T420

Lenovo ThinkPad T540 vs Lenovo T420
Lenovo ThinkPad T540
2 core Intel Core i3-4xxx 2.5GHz 4GB 500GB HDD 15.6"
Lenovo T420
2 core Intel Core i5-2xxx 2.4GHz 4GB 320GB HDD 14"
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Fifteen More Maximum Number of PCI Express Laness
50% Bigger Maximum Internal Memory
Bigger Total Storage Capacity
180GB Bigger Hard Drive Capacity
250MHz Slower On-Board Graphics Adapter Base Frequency
Only Six Number of Battery Cellss

DELL Latitude 14 7000 vs Lenovo T420

DELL Latitude 14 7000 vs Lenovo T420
DELL Latitude 14 7000
2 core Intel Core i5-4xxx 2GHz 8GB 256GB SSD 14"
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2 core Intel Core i5-2xxx 2.4GHz 4GB 320GB HDD 14"
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Three More Awards
12.00 Maximum Number of PCI Express Laness
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610g Lighter
Slower On-Board Graphics Adapter Base Frequency
Five Less Number of Battery Cellss
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