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Product comparison · 2 laptops

Lenovo ThinkPad E440 vs Lenovo ThinkPad X240s Intel® Core™ i7 i7-4500U Laptop

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  • 148specifications compared
  • 49differ
  • 99identical
  • 32known for one product only

Key differences

  • Display diagonal
    • 35.6 cm (14")
    • 31.8 cm (12.5")
  • Touchscreen
    • Yes
    • No
  • Processor family
    • Intel® Core™ i3
    • Intel® Core™ i7
  • Processor generation
    • 4th gen Intel® Core™ i3
    • 4th gen Intel® Core™ i7
  • Processor model
    • i3-4000M
    • i7-4500U
  • Processor boost frequency
    • 3.2 GHz
    • 3 GHz
  • Processor frequency
    • 2.4 GHz
    • 1.8 GHz
  • Processor cache
    • 3 MB
    • 4 MB

Side by side

Differences highlightedShow differences only
180 specifications
A

Lenovo

ThinkPad E440View product
B

Lenovo

ThinkPad X240s Intel® Core™ i7 i7-4500U Laptop

Model X240s

View product
Designidentical
Housing materialKnown for onePlastic
Display2 differ
Display diagonalDiffers35.6 cm (14")31.8 cm (12.5")
TouchscreenDiffersYesNo
Touchscreen typeKnown for oneCapacitive
Touch technologyKnown for oneMulti-touch
Processor13 differ
Processor familyDiffersIntel® Core™ i3Intel® Core™ i7
Processor generationDiffers4th gen Intel® Core™ i34th gen Intel® Core™ i7
Processor modelDiffersi3-4000Mi7-4500U
Processor boost frequencyDiffers3.2 GHz3 GHz
Processor frequencyDiffers2.4 GHz1.8 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers3 MB4 MB
L3 cacheDiffers3 MB4 MB
Processor socketDiffersPGA946BGA 1168
Processor seriesDiffersIntel® Core™ i3-4000 Mobile SeriesIntel Core i7-4500 Mobile series
Bus typeDiffersDMIDMI2
Thermal Design Power (TDP)Differs37 W15 W
Maximum number of PCI Express lanesDiffers1612
PCI Express configurationsDiffers1x16, 2x8, 1x8+2x42x4
Memory4 differ
Internal memoryDiffers4 GB8 GB
Memory layout (slots x size)Differs1 x 4 GB1 x 8 GB
Memory slotsDiffers2x SO-DIMM1x SO-DIMM
Maximum internal memoryDiffers16 GB8 GB
Storage5 differ
Total storage capacityDiffers500 GB1 TB
HDD capacityDiffers500 GB1 TB
HDD speedDiffers7200 RPM5400 RPM
Optical drive typeDiffersDVD±RWNo
Compatible memory cardsDiffersMMC, SD, SDHC, SDXCMMC, RS-MMC, SD, SDIO
Graphics5 differ
On-board graphics card modelDiffersIntel® HD Graphics 4600Intel® HD Graphics 4400
Maximum on-board graphics card memoryDiffers2 GB1.74 GB
On-board graphics card base frequencyDiffers400 MHz200 MHz
On-board graphics card DirectX versionDiffers11.112
On-board graphics card IDDiffers0x4160xA16
Audio1 differ
Audio systemDiffersDolby Advanced Audio v2Dolby Home Theater
Network1 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, 802.11b, 802.11g
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers10
HDMI ports quantityDiffers10
Docking connectorDiffersNoYes
Mini DisplayPorts quantityKnown for one1
Total number of SATA connectorsKnown for one4
Number of SATA III connectorsKnown for one4
Performanceidentical
Motherboard chipsetKnown for oneIntel® HM87
Keyboardidentical
Pointing deviceKnown for oneThinkPad UltraNav
Software1 differ
Operating system installedDiffersWindows 8.1 ProWindows 8
Processor special features10 differ
Intel Enhanced Halt StateDiffersNoYes
Intel FDI TechnologyDiffersNoYes
Intel Rapid Storage TechnologyDiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® My WiFi Technology (Intel® MWT)DiffersNoYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Smart CacheKnown for oneYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers7510475460
Processor codeDiffersSR1HCSR16Z
Processor package sizeDiffers37.5 x 37.5 x 4.7 mm40 x 24 x 1.5 mm
Intel ME Firmware VersionKnown for one9.5
Intel Smart Connect TechnologyKnown for oneYes
Intel Smart Connect Technology versionKnown for one1.00
Intel® High Definition Audio (Intel® HD Audio)Known for oneYes
Intel® Matrix Storage Technology (Intel® MST)Known for oneYes
Battery1 differ
Number of battery cellsKnown for one6
Battery capacityKnown for one48 Wh
Battery life (max)Differs6 h11.8 h
Poweridentical
AC adapter powerKnown for one65 W
Securityidentical
Password protectionKnown for oneYes
Password protection typeKnown for oneHDD, Power on, Supervisor
Cable lock slot typeKnown for oneKensington
Fingerprint readerKnown for oneYes
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STAR
Weight & dimensions3 differ
WeightDiffers2.43 kg1.34 kg
WidthDiffers344 mm305.5 mm
DepthDiffers239 mm208.5 mm
Height (front)Known for one2.97 cm
Height (rear)Known for one3.23 cm
HeightKnown for one17.7 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
ManualKnown for oneYes
Other featuresidentical
64-bit computingKnown for oneYes
Intel segment taggingKnown for oneHome office, Small Business

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