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Product comparison · 2 laptops

ASUS Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U vs Lenovo ThinkPad E440

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  • 140specifications compared
  • 59differ
  • 81identical
  • 55known for one product only

Key differences

  • Product colour
    • Grey, Silver
    • Black
  • Display diagonal
    • 33.8 cm (13.3")
    • 35.6 cm (14")
  • Display resolution
    • 1920 x 1080 pixels
    • 1366 x 768 pixels
  • Processor family
    • Intel® Core™ i7
    • Intel® Core™ i3
  • Processor generation
    • 4th gen Intel® Core™ i7
    • 4th gen Intel® Core™ i3
  • Processor model
    • i7-4500U
    • i3-4000M
  • Processor boost frequency
    • 3 GHz
    • 3.2 GHz
  • Processor frequency
    • 1.8 GHz
    • 2.4 GHz

Side by side

Differences highlightedShow differences only
195 specifications
A

ASUS

Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U

Model UX31LA-DS71T

View product
B

Lenovo

ThinkPad E440View product
Design1 differ
Product colourDiffersGrey, SilverBlack
Housing materialKnown for onePlastic
Market positioningKnown for oneBusiness
Display2 differ
Display diagonalDiffers33.8 cm (13.3")35.6 cm (14")
Display resolutionDiffers1920 x 1080 pixels1366 x 768 pixels
Touchscreen typeKnown for oneCapacitive
HD typeKnown for oneFull HD
Panel typeKnown for oneIPS
Display surfaceKnown for oneGloss
Processor12 differ
Processor familyDiffersIntel® Core™ i7Intel® Core™ i3
Processor generationDiffers4th gen Intel® Core™ i74th gen Intel® Core™ i3
Processor modelDiffersi7-4500Ui3-4000M
Processor boost frequencyDiffers3 GHz3.2 GHz
Processor frequencyDiffers1.8 GHz2.4 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers4 MB3 MB
L3 cacheKnown for one3 MB
Processor socketDiffersBGA 1168PGA946
Processor seriesDiffersIntel Core i7-4500 Mobile seriesIntel® Core™ i3-4000 Mobile Series
Bus typeDiffersDMI2DMI
Thermal Design Power (TDP)Differs15 W37 W
Maximum number of PCI Express lanesDiffers1216
PCI Express configurationsDiffers2x41x16, 2x8, 1x8+2x4
Memory4 differ
Internal memoryDiffers8 GB4 GB
Internal memory typeDiffersDDR3L-SDRAMDDR3-SDRAM
Memory form factorDiffersOn-boardSO-DIMM
Memory layout (slots x size)Known for one1 x 4 GB
Memory slotsKnown for one2x SO-DIMM
Maximum internal memoryDiffers8 GB16 GB
Maximum internal memory (64-bit)Known for one8 GB
Storage4 differ
Total storage capacityDiffers128 GB500 GB
Storage mediaDiffersSSDHDD
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
HDD interfaceKnown for oneSATA
HDD speedKnown for one7200 RPM
Optical drive typeDiffersNoDVD±RW
Compatible memory cardsDiffersMemory Stick (MS), MMC, MS PRO, MS PRO Duo, SDHC, SDXCMMC, SD, SDHC, SDXC
Number of SSDs installedKnown for one1
SSD capacityKnown for one128 GB
SSD interfaceKnown for oneSATA III
Graphics5 differ
On-board graphics card modelDiffersIntel® HD Graphics 4400Intel® HD Graphics 4600
Maximum on-board graphics card memoryDiffers1.74 GB2 GB
On-board graphics card base frequencyDiffers200 MHz400 MHz
On-board graphics card DirectX versionDiffers1211.1
On-board graphics card IDDiffers0xA160x416
Audio1 differ
Audio systemDiffersSonic MasterDolby Advanced Audio v2
Number of built-in speakersKnown for one2
Network2 differ
Wi-Fi standardsDiffers802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANDiffersNoYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers01
eSATA/USB 2.0 ports quantityKnown for one0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
Ethernet LAN (RJ-45) portsDiffers01
HDMI ports quantityDiffers01
VGA (D-Sub) ports quantityDiffers01
Firewire (IEEE 1394) portsKnown for one0
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one1
Mini DisplayPorts quantityKnown for one1
Micro HDMI ports quantityKnown for one1
Total number of SATA connectorsKnown for one4
Number of SATA III connectorsKnown for one4
Performanceidentical
Motherboard chipsetKnown for oneIntel® HM87
Keyboard1 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Spill-resistant keyboardKnown for oneYes
Full-size keyboardKnown for oneYes
Island-style keyboardKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 8.1Windows 8.1 Pro
Operating system architectureKnown for one64-bit
Processor special features11 differ
Intel Enhanced Halt StateDiffersYesNo
Intel FDI TechnologyDiffersYesNo
Intel Rapid Storage TechnologyDiffersYesNo
Intel® AES New Instructions (Intel® AES-NI)DiffersYesNo
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersYesNo
Intel® My WiFi Technology (Intel® MWT)DiffersYesNo
Intel® Small Business Advantage (Intel® SBA)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Intel® Turbo Boost TechnologyDiffers2.0No
Processor ARK IDDiffers7546075104
Processor codeDiffersSR16ZSR1HC
Processor package sizeDiffers40 x 24 x 1.5 mm37.5 x 37.5 x 4.7 mm
Intel ME Firmware VersionKnown for one9.5
Intel Smart Connect TechnologyKnown for oneYes
Intel Smart Connect Technology versionKnown for one1.00
Intel® Active Management Technology (Intel® AMT)Known for oneNo
Intel® High Definition Audio (Intel® HD Audio)Known for oneYes
Intel® Matrix Storage Technology (Intel® MST)Known for oneYes
Intel® Rapid Start TechnologyKnown for oneNo
Intel® Smart Response TechnologyKnown for oneNo
Battery1 differ
Battery technologyDiffersLithium Polymer (LiPo)Lithium-Ion (Li-Ion)
Battery capacityKnown for one48 Wh
Battery life (max)Known for one6 h
Power1 differ
AC adapter powerDiffers45 W65 W
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
AC adapter output voltageKnown for one19 V
Security2 differ
Cable lock slotDiffersNoYes
Password protection typeDiffersBIOS, HDDHDD, Power on, Supervisor
Trusted Platform Module (TPM)Known for oneYes
Certificatesidentical
Compliance certificatesKnown for oneRoHS
CertificationKnown for oneUL, MIC, CE , FCC, BSMI, Australia C-TICK / NZ A-Tick , CCC, GOST-R, CB, EU Flower, IDA
Sustainability1 differ
Sustainability certificatesDiffersENERGY STAREPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers1.4 kg2.43 kg
WidthDiffers325 mm344 mm
DepthDiffers226 mm239 mm
Height (front)Differs3 mm2.97 cm
Height (rear)Differs1.8 cm3.23 cm
Packaging contentidentical
ManualKnown for oneYes
Warranty cardKnown for oneYes
Other features1 differ
64-bit computingKnown for oneYes
Intel segment taggingDiffersEnterpriseHome office, Small Business

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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