Product comparison · 2 laptops

Lenovo S440 + ThinkPad OneLink Dock vs Lenovo S531 + ThinkPad OneLink Dock

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  • 135specifications compared
  • 45differ
  • 90identical
  • 63known for one product only

Key differences

  • Display diagonal
    • S440 + ThinkPad OneLink Dock:35.6 cm (14")
    • S531 + ThinkPad OneLink Dock:39.6 cm (15.6")
  • Display resolution
    • S440 + ThinkPad OneLink Dock:1600 x 900 pixels
    • S531 + ThinkPad OneLink Dock:1366 x 768 pixels
  • HD type
    • S440 + ThinkPad OneLink Dock:HD+
    • S531 + ThinkPad OneLink Dock:HD
  • Processor family
    • S440 + ThinkPad OneLink Dock:Intel® Core™ i3
    • S531 + ThinkPad OneLink Dock:Intel® Core™ i5
  • Processor generation
    • S440 + ThinkPad OneLink Dock:4th gen Intel® Core™ i3
    • S531 + ThinkPad OneLink Dock:3rd gen Intel® Core™ i5
  • Processor model
    • S440 + ThinkPad OneLink Dock:i3-4010U
    • S531 + ThinkPad OneLink Dock:i5-3337U
  • Processor frequency
    • S440 + ThinkPad OneLink Dock:1.7 GHz
    • S531 + ThinkPad OneLink Dock:1.8 GHz
  • Processor socket
    • S440 + ThinkPad OneLink Dock:BGA 1168
    • S531 + ThinkPad OneLink Dock:BGA 1023

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Differences highlightedShow differences only (on)
Comparison of S440 + ThinkPad OneLink Dock, S531 + ThinkPad OneLink Dock
198 specifications
Display3 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Display resolutionDiffers1600 x 900 pixels1366 x 768 pixels
TouchscreenKnown for oneUnknown — not stated by the sourceNo
HD typeDiffersHD+HD
Display brightnessKnown for oneUnknown — not stated by the source200 cd/m²
Dual-screenKnown for oneUnknown — not stated by the sourceNo
Processor13 differ
Processor familyDiffersIntel® Core™ i3Intel® Core™ i5
Processor generationDiffers4th gen Intel® Core™ i33rd gen Intel® Core™ i5
Processor modelDiffersi3-4010Ui5-3337U
Processor boost frequencyKnown for oneUnknown — not stated by the source2.7 GHz
Processor frequencyDiffers1.7 GHz1.8 GHz
Processor socketDiffersBGA 1168BGA 1023
Processor seriesDiffersIntel® Core™ i3-4000 Mobile SeriesIntel Core i5-3300 Mobile series
Processor codenameDiffersHaswellIvy Bridge
Bus typeDiffersDMI2DMI
SteppingDiffersC0L1
Thermal Design Power (TDP)Differs15 W17 W
TjunctionDiffers100 °C105 °C
Maximum number of PCI Express lanesDiffers1216
PCI Express configurationsDiffers2x4, 4x11x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)Known for oneUnknown — not stated by the source18
Memory1 differ
Maximum internal memoryDiffers8 GB10 GB
Memory slotsKnown for one1x SO-DIMMUnknown — not stated by the source
Storage3 differ
Total storage capacityDiffers128 GB524 GB
Storage mediaDiffersSSDHDD+SSD
Number of HDDs installedKnown for oneUnknown — not stated by the source1
HDD capacityKnown for oneUnknown — not stated by the source500 GB
HDD interfaceKnown for oneUnknown — not stated by the sourceSATA
HDD speedKnown for oneUnknown — not stated by the source7200 RPM
HDD sizeKnown for oneUnknown — not stated by the source2.5"
SSD capacityDiffers128 GB24 GB
Compatible memory cardsKnown for oneUnknown — not stated by the sourceMMC, SD, SDHC, SDXC
SSD interfaceKnown for oneSATA IIIUnknown — not stated by the source
Graphics4 differ
On-board graphics card modelDiffersIntel® HD Graphics 4400Intel® HD Graphics 4000
On-board graphics card base frequencyDiffers200 MHz350 MHz
On-board graphics card dynamic frequency (max)Differs1000 MHz1100 MHz
On-board graphics card IDDiffers0xA160x166
Maximum on-board graphics card memoryKnown for one2 GBUnknown — not stated by the source
On-board graphics card DirectX versionKnown for one11.2/12Unknown — not stated by the source
On-board graphics card OpenGL versionKnown for one4.3Unknown — not stated by the source
Audioidentical
Audio systemKnown for oneUnknown — not stated by the sourceDolby Home Theater
Number of built-in speakersKnown for oneUnknown — not stated by the source2
Speaker powerKnown for oneUnknown — not stated by the source3 W
Cameraidentical
Front camera resolutionKnown for oneUnknown — not stated by the source1280 x 720 pixels
Network1 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, 802.11b, 802.11g
Cabling technologyKnown for oneUnknown — not stated by the source10/100/1000Base-T(X)
Integrated 4G WiMAXKnown for oneUnknown — not stated by the sourceYes
Ports & interfaces1 differ
Docking connectorDiffersNoYes
USB Sleep-and-ChargeKnown for oneUnknown — not stated by the sourceYes
USB Sleep-and-Charge portsKnown for oneUnknown — not stated by the source1
Total number of SATA connectorsKnown for one4Unknown — not stated by the source
Number of SATA III connectorsKnown for one4Unknown — not stated by the source
Keyboard2 differ
Pointing deviceDiffersClickpadThinkPad UltraNav
Numeric keypadDiffersNoYes
Software1 differ
Operating system installedDiffersWindows 8 ProWindows 7 Professional
Processor special features11 differ
Embedded options availableDiffersYesNo
Graphics & IMC lithographyKnown for oneUnknown — not stated by the source22 nm
Intel Dual Display Capable TechnologyDiffersNoYes
Intel FDI TechnologyDiffersNoYes
Intel Fast Memory AccessDiffersNoYes
Intel Flex Memory AccessDiffersNoYes
Intel Rapid Storage TechnologyDiffersYesNo
Intel® Smart CacheKnown for oneUnknown — not stated by the sourceYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers7510772055
Processor codeDiffersSSSR16QSR0XL
Processor package sizeDiffers40 x 24 x 1.5 mm31 x 24 (BGA1023)
Supported instruction setsDiffersAVX 2.0, SSE4.1, SSE4.2AVX
Intel ME Firmware VersionKnown for one9.5Unknown — not stated by the source
Intel Small Business Advantage (SBA) versionKnown for one1.00Unknown — not stated by the source
Intel Smart Connect TechnologyKnown for oneYesUnknown — not stated by the source
Intel Smart Connect Technology versionKnown for one1.00Unknown — not stated by the source
Intel Smart Response Technology versionKnown for one1.00Unknown — not stated by the source
Intel TSX-NIKnown for oneNoUnknown — not stated by the source
Intel TSX-NI versionKnown for one0.00Unknown — not stated by the source
Intel® High Definition Audio (Intel® HD Audio)Known for oneYesUnknown — not stated by the source
Intel® Matrix Storage Technology (Intel® MST)Known for oneNoUnknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Known for oneYesUnknown — not stated by the source
Intel® Smart Response TechnologyKnown for oneYesUnknown — not stated by the source
Intel® Virtualization Technology (Intel® VT)Known for oneVT-d, VT-xUnknown — not stated by the source
UARTKnown for oneYesUnknown — not stated by the source
Battery1 differ
Battery capacityKnown for oneUnknown — not stated by the source62.8 Wh
Battery life (max)Differs6 h9 h
Poweridentical
AC adapter powerKnown for oneUnknown — not stated by the source65 W
AC adapter frequencyKnown for oneUnknown — not stated by the source50 - 60 Hz
AC adapter input voltageKnown for oneUnknown — not stated by the source100 - 240 V
Security1 differ
Cable lock slotDiffersNoYes
Certificatesidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneUnknown — not stated by the sourceENERGY STAR
Weight & dimensions3 differ
WeightDiffers1.78 kg2.29 kg
WidthDiffers333 mm379 mm
DepthDiffers225 mm252.4 mm
HeightKnown for oneUnknown — not stated by the source20.7 mm
Height (front)Known for one2.05 cmUnknown — not stated by the source
Height (rear)Known for one2.25 cmUnknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for oneUnknown — not stated by the sourceYes
Cables includedKnown for oneUnknown — not stated by the sourceAC
ManualKnown for oneUnknown — not stated by the sourceYes
Power cord includedKnown for oneUnknown — not stated by the sourceYes
Quick start guideKnown for oneUnknown — not stated by the sourceYes
Docking station includedKnown for oneYesUnknown — not stated by the source
Docking stationidentical
Docking station connecting interfaceKnown for oneLenovo OneLinkUnknown — not stated by the source
Docking station Ethernet LANKnown for oneYesUnknown — not stated by the source
Docking station USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one2Unknown — not stated by the source
Docking station HDMI portKnown for oneYesUnknown — not stated by the source
Docking station headphone outKnown for oneYesUnknown — not stated by the source
Docking station microphone inKnown for oneYesUnknown — not stated by the source
Docking station LAN controllerKnown for one1Unknown — not stated by the source

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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