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Product comparison · 2 laptops

Lenovo ThinkPad E440 vs Lenovo ThinkPad E540

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  • 131specifications compared
  • 26differ
  • 105identical
  • 53known for one product only

Key differences

  • Display diagonal
    • 35.6 cm (14")
    • 39.6 cm (15.6")
  • Processor family
    • Intel® Core™ i3
    • Intel® Core™ i5
  • Processor generation
    • 4th gen Intel® Core™ i3
    • 4th gen Intel® Core™ i5
  • Processor model
    • i3-4000M
    • i5-4200M
  • Processor boost frequency
    • 3.2 GHz
    • 3.1 GHz
  • Processor frequency
    • 2.4 GHz
    • 2.5 GHz
  • PCI Express slots version
    • 2.0
    • 3.0
  • Total storage capacity
    • 500 GB
    • 128 GB

Side by side

Differences highlightedShow differences only
184 specifications
A

Lenovo

ThinkPad E440View product
B

Lenovo

ThinkPad E540View product
Designidentical
Housing materialKnown for onePlastic
Market positioningKnown for oneBusiness
Display1 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Touchscreen typeKnown for oneCapacitive
Touch technologyKnown for oneMulti-touch
HD typeKnown for oneHD
Processor7 differ
Processor familyDiffersIntel® Core™ i3Intel® Core™ i5
Processor generationDiffers4th gen Intel® Core™ i34th gen Intel® Core™ i5
Processor modelDiffersi3-4000Mi5-4200M
Processor boost frequencyDiffers3.2 GHz3.1 GHz
Processor frequencyDiffers2.4 GHz2.5 GHz
L3 cacheKnown for one3 MB
Processor seriesDiffersIntel® Core™ i3-4000 Mobile SeriesIntel Core i5-4200 Mobile series
PCI Express slots versionDiffers2.03.0
Memoryidentical
Memory clock speedKnown for one1600 MHz
Memory form factorKnown for oneSO-DIMM
Memory layout (slots x size)Known for one1 x 4 GB
Storage2 differ
Total storage capacityDiffers500 GB128 GB
Storage mediaDiffersHDDSSD
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
HDD interfaceKnown for oneSATA
HDD speedKnown for one7200 RPM
Compatible memory cardsKnown for oneMMC, SD, SDHC, SDXC
Number of SSDs installedKnown for one1
SSD capacityKnown for one128 GB
Graphics2 differ
Discrete graphics cardKnown for oneNo
Discrete graphics card modelKnown for oneNot available
Maximum on-board graphics card memoryDiffers2 GB1.74 GB
On-board graphics card dynamic frequency (max)Differs1100 MHz1150 MHz
Audio1 differ
Audio systemDiffersDolby Advanced Audio v2Dolby Advanced 2.0
Number of built-in speakersKnown for one2
Optical driveidentical
LightScribeKnown for oneNo
Network1 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, 802.11b, 802.11g
Ports & interfaces1 differ
Headphone outputsDiffers01
Docking connectorKnown for oneNo
ExpressCard slotKnown for oneNo
CardBus PCMCIA slots quantityKnown for one0
CardBus PCMCIA slot typeKnown for oneNo
SmartCard slotKnown for oneNo
Mini DisplayPorts quantityKnown for one0
Mini DisplayPort/Thunderbolt combo portKnown for oneNo
Thunderbolt 2 ports quantityKnown for one0
Mini HDMI ports quantityKnown for one0
Micro HDMI ports quantityKnown for one0
LAN/VGA combo portKnown for oneNo
Mini VGA ports quantityKnown for one0
Performanceidentical
Motherboard chipsetKnown for oneIntel® HM87
Keyboard1 differ
Numeric keypadDiffersNoYes
Spill-resistant keyboardKnown for oneYes
Full-size keyboardKnown for oneYes
Windows keysKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 8.1 ProWindows 8.1
Processor special features5 differ
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers7510476348
Processor codeDiffersSR1HCSR1HA
Batteryidentical
Battery capacityKnown for one48 Wh
Battery life (max)Known for one6 h
Poweridentical
AC adapter powerKnown for one65 W
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
Security1 differ
Cable lock slotDiffersYesNo
Password protectionKnown for oneYes
Password protection typeKnown for oneHDD, Power on, Supervisor
Fingerprint readerKnown for oneYes
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STAR
Weight & dimensions3 differ
WeightDiffers2.43 kg2.44 kg
WidthDiffers344 mm377 mm
DepthDiffers239 mm250 mm
Height (front)Known for one2.97 cm
Height (rear)Known for one3.23 cm
HeightKnown for one26.6 mm
Packaging contentidentical
ManualKnown for oneYes
Other featuresidentical
64-bit computingKnown for oneYes
TV tuner integratedKnown for oneNo

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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