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Lenovo ThinkPad E420

alaTest has collected and analyzed 2 reviews from magazines and websites. Reviewers really like the usability and durability. The price and portability also get good feedback, but some have doubts about the design.

performance, portability, price, durability, usability


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Review analysis

(Based on 2 reviews)

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Consumer review (

Great laptop, great deal


I'm a longtime fan of Lenovo for their quality and endurance under road-warrior conditions. My new E420 is no exception. Really like the new keyboard--great feel, and no fatigue. Performance with Win 7 64 Pro is nimble and robust. Best bang for the buck.

Aug, 2011

Consumer review (

Incredible Buy


This is exactly what I was looking for. Works great, long battery life, good performance with the i3 chip and it's light. The price is a steal for a business class computer with Windows 7 professional. If you're looking for a larger screen, there are...

Jun, 2011

Product Specifications


Audio system:HD
Number of built-in speakers:2


Battery life (max):6.2
Number of battery cells:6


Energy Star certified: Yes
EPEAT compliance:Gold
RoHS compliance: Yes


Color of product:Black
Intel segment tagging:Home office, Small Business


Aspect Ratio:16:9
Contrast ratio (typical):500:1
Display brightness:220
Display Diagonal:14
Display Resolution:1366 x 768
LED backlight: Yes

Energy Management

AC adapter power:65


Discrete graphics adapter:Y
Discrete graphics adapter model:Intel HD Graphics 3000
Number of displays supported (on-board graphics):2
On-board graphics adapter base frequency:650
On-board graphics adapter dynamic frequency (max):1100
On-board graphics adapter family:Intel® HD Graphics
On-board graphics adapter ID:0x116
On-board graphics adapter model:Intel HD Graphics 3000


Full-size keyboard: Yes
Pointing device:ThinkPad UltraNav
Spill resistant keyboard: Yes


Internal memory:4
Internal memory type:DDR3-SDRAM
Maximum internal memory:8
Memory clock speed:1333
Memory slots:2x SO-DIMM


3G: No
Bluetooth: No
Cabling technology:10/100/1000Base-T(X)
Ethernet LAN:Y
Ethernet LAN connection: Yes
Networking features:Gigabit Ethernet
Wi-Fi: Yes

Optical Drive

Optical Drive Type:DVD-ROM

Other Features

Audio system:HD
Compliance industry standards:IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Graphics adapter family:Intel
Infrared data port: No

Packaging Data

AC adapter bundled: Yes
AC adapter included:Y

Ports & interfaces

CardBus PCMCIA slot type: No
DC-in jack: Yes
Docking connector: No
DVI port: No
eSATA/USB 2.0 ports quantity:1
Ethernet LAN (RJ-45) ports:1
Ethernet LAN (RJ-45) ports quantity:1
ExpressCard slot: Yes
HDMI ports quantity:1
Headphone outputs:1
Microphone in: Yes
S/PDIF out port: No
SmartCard slot: No
TV out:N
TV out port: No
USB 2.0 ports quantity:3
VGA (D-Sub) ports quantity:1


AC adapter power:65


Bus type:DMI
Conflict Free processor:N
CPU multiplier (bus/core ratio):21
ECC supported by processor:N
FSB Parity: No
Integrated 4G WiMAX:Y
Maximum number of PCI Express lanes:1
PCI Express configurations:1x16, 2x8, 1x8+2x4
PCI Express slots version:2.0
Processor cache:3
Processor cache type:Smart Cache
Processor codename:Sandy Bridge
Processor cores:2
Processor family:Intel Core i3-2xxx
Processor frequency:2.1
Processor lithography:32
Processor model:I3-2310M
Processor operating modes:64-bit
Processor Series:Intel Core i3-2300 Mobile series
Processor socket:BGA1023
Processor threads:4
System bus data transfer rate:5
System bus rate:5
Thermal Design Power (TDP):35

Processor special features

CPU configuration (max):1
Embedded options available: No
Enhanced Intel SpeedStep Technology: Yes
Execute Disable Bit: Yes
Graphics & IMC lithography:32
Idle States: Yes
Intel 64:Y
Intel AES New Instructions: No
Intel Anti-Theft Technology: Yes
Intel Clear Video HD Technology: Yes
Intel Clear Video Technology:N
Intel Clear Video Technology for MID: No
Intel Demand Based Switching: No
Intel Dual Display Capable Technology: Yes
Intel Enhanced Halt State: Yes
Intel Fast Memory Access: Yes
Intel FDI Technology: Yes
Intel Flex Memory Access: Yes
Intel Hyper-Threading Technology: Yes
Intel Identity Protection Technology version:1.00
Intel Insider: Yes
Intel InTru 3D Technology: Yes
Intel My WiFi Technology: Yes
Intel Quick Sync Video Technology: Yes
Intel Rapid Storage Technology: No
Intel Trusted Execution Technology: No
Intel Turbo Boost Technology: No
Intel Virtualization Technology (VT-x):Y
Intel Virtualization Technology for Directed I/O (VT-d):N
Intel vPro Technology: No
Intel VT-x with Extended Page Tables (EPT): Yes
Intel Wireless Display (WiDi) Technology: Yes
Intel® AES New Instructions (Intel® AES-NI):N
Intel® Anti-Theft Technology (Intel® AT):Y
Intel® Clear Video HD Technology (Intel® CVT HD):Y
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID):N
Intel® Hyper Threading Technology (Intel® HT Technology):Y
Intel® Insider™: Yes
Intel® InTru™ 3D Technology:Y
Intel® My WiFi Technology (Intel® MWT):Y
Intel® Quick Sync Video Technology: Yes
Intel® Turbo Boost Technology: No
Intel® vPro™ Technology:N
Intel® Wireless Display (Intel® WiDi):Y
InTru™ 3D Technology: Yes
Processor ARK ID:52220
Processor code:SR04S
Processor package size:31
Supported instruction sets:AVX
Thermal Monitoring Technologies: Yes


Operating system architecture:64-bit
Operating system installed:Windows 7 Professional


Card reader integrated: Yes
Compatible memory cards:MMC, SD, SDHC, SDXC
Hard disk rotational speed:7200
Hard Drive Interface:Serial ATA
Hard drive speed:7200
Host interface:SATA
Number of hard drives installed:1
Total Storage Capacity:320

Weight & Dimensions

Depth (imperial):9.2
Height (front):1.13
Height (front) (imperial):1.13
Height (rear):1.43
Height (rear) (imperial):1.43
Width (imperial):13.5