Product comparison · 2 laptops

Lenovo S531 + ThinkPad OneLink Dock vs Lenovo ThinkPad W540

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  • 128specifications compared
  • 50differ
  • 78identical
  • 51known for one product only

Key differences

  • Display resolution
    • S531 + ThinkPad OneLink Dock:1366 x 768 pixels
    • ThinkPad W540:1920 x 1080 pixels
  • HD type
    • S531 + ThinkPad OneLink Dock:HD
    • ThinkPad W540:Full HD
  • Processor family
    • S531 + ThinkPad OneLink Dock:Intel® Core™ i5
    • ThinkPad W540:Intel® Core™ i7
  • Processor generation
    • S531 + ThinkPad OneLink Dock:3rd gen Intel® Core™ i5
    • ThinkPad W540:4th gen Intel® Core™ i7
  • Processor model
    • S531 + ThinkPad OneLink Dock:i5-3337U
    • ThinkPad W540:i7-4800MQ
  • Processor cores
    • S531 + ThinkPad OneLink Dock:2
    • ThinkPad W540:4
  • Processor threads
    • S531 + ThinkPad OneLink Dock:4
    • ThinkPad W540:8
  • Processor boost frequency
    • S531 + ThinkPad OneLink Dock:2.7 GHz
    • ThinkPad W540:3.7 GHz

Side by side

Differences highlightedShow differences only (on)
Comparison of S531 + ThinkPad OneLink Dock, ThinkPad W540
179 specifications
Display2 differ
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
TouchscreenKnown for oneNoUnknown — not stated by the source
HD typeDiffersHDFull HD
Display brightnessKnown for one200 cd/m²Unknown — not stated by the source
Dual-screenKnown for oneNoUnknown — not stated by the source
Processor16 differ
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers3rd gen Intel® Core™ i54th gen Intel® Core™ i7
Processor modelDiffersi5-3337Ui7-4800MQ
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers2.7 GHz3.7 GHz
Processor frequencyDiffers1.8 GHz2.7 GHz
System bus rateKnown for one5 GT/sUnknown — not stated by the source
Processor cacheDiffers3 MB6 MB
Processor socketDiffersBGA 1023PGA946
Processor seriesDiffersIntel Core i5-3300 Mobile seriesIntel Core i7-4800 Mobile series
Processor codenameDiffersIvy BridgeHaswell
Bus typeDiffersDMIDMI2
SteppingDiffersL1C0
Thermal Design Power (TDP)Differs17 W47 W
TjunctionDiffers105 °C100 °C
PCI Express slots versionDiffers2.03.0
CPU multiplier (bus/core ratio)Known for one18Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers4 GB8 GB
Maximum internal memoryDiffers10 GB32 GB
Storage3 differ
Total storage capacityDiffers524 GB180 GB
Storage mediaDiffersHDD+SSDSSD
Number of HDDs installedKnown for one1Unknown — not stated by the source
HDD capacityKnown for one500 GBUnknown — not stated by the source
HDD interfaceKnown for oneSATAUnknown — not stated by the source
HDD speedKnown for one7200 RPMUnknown — not stated by the source
HDD sizeKnown for one2.5"Unknown — not stated by the source
SSD capacityDiffers24 GB180 GB
Optical drive typeKnown for oneNoUnknown — not stated by the source
Compatible memory cardsKnown for oneMMC, SD, SDHC, SDXCUnknown — not stated by the source
Graphics4 differ
Discrete graphics cardKnown for oneNoUnknown — not stated by the source
Discrete graphics card modelKnown for oneNot availableUnknown — not stated by the source
On-board graphics card modelDiffersIntel® HD Graphics 4000Intel® HD Graphics 4600
On-board graphics card base frequencyDiffers350 MHz400 MHz
On-board graphics card dynamic frequency (max)Differs1100 MHz1300 MHz
On-board graphics card IDDiffers0x1660x416
Maximum on-board graphics card memoryKnown for oneUnknown — not stated by the source1.74 GB
On-board graphics card DirectX versionKnown for oneUnknown — not stated by the source11.1
Audio1 differ
Audio systemDiffersDolby Home TheaterDolby Home Theater v4
Number of built-in speakersKnown for one2Unknown — not stated by the source
Speaker powerKnown for one3 WUnknown — not stated by the source
Cameraidentical
Front camera resolutionKnown for one1280 x 720 pixelsUnknown — not stated by the source
Optical driveidentical
LightScribeKnown for oneNoUnknown — not stated by the source
Networkidentical
Bluetooth versionKnown for one4.0Unknown — not stated by the source
Cabling technologyKnown for one10/100/1000Base-T(X)Unknown — not stated by the source
Integrated 4G WiMAXKnown for oneYesUnknown — not stated by the source
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers02
HDMI ports quantityDiffers10
VGA (D-Sub) ports quantityDiffers01
Thunderbolt ports quantityDiffers01
Microphone inDiffersYesNo
Docking connectorKnown for oneYesUnknown — not stated by the source
ExpressCard slotDiffersNoYes
CardBus PCMCIA slots quantityKnown for one0Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for oneNoUnknown — not stated by the source
SmartCard slotKnown for oneNoUnknown — not stated by the source
USB Sleep-and-ChargeKnown for oneYesUnknown — not stated by the source
USB Sleep-and-Charge portsKnown for one1Unknown — not stated by the source
Thunderbolt 2 ports quantityKnown for oneUnknown — not stated by the source0
Mini HDMI ports quantityKnown for oneUnknown — not stated by the source0
Micro HDMI ports quantityKnown for oneUnknown — not stated by the source0
LAN/VGA combo portKnown for oneUnknown — not stated by the sourceNo
Mini VGA ports quantityKnown for oneUnknown — not stated by the source0
Keyboardidentical
Keyboard backlitKnown for oneYesUnknown — not stated by the source
Spill-resistant keyboardKnown for oneYesUnknown — not stated by the source
Windows keysKnown for oneYesUnknown — not stated by the source
Processor special features8 differ
Graphics & IMC lithographyKnown for one22 nmUnknown — not stated by the source
Intel Dual Display Capable TechnologyDiffersYesNo
Intel Fast Memory AccessDiffersYesNo
Intel Flex Memory AccessDiffersYesNo
Intel Trusted Execution TechnologyDiffersNoYes
Processor ARK IDDiffers7205575128
Processor codeDiffersSR0XLSR15L
Processor package sizeDiffers31 x 24 (BGA1023)37.5 x 37.5 x 4.7 mm
Supported instruction setsDiffersAVXAVX 2.0, SSE4.1, SSE4.2
Intel TSX-NIKnown for oneUnknown — not stated by the sourceNo
Intel TSX-NI versionKnown for oneUnknown — not stated by the source0.00
Battery3 differ
Battery technologyDiffersLithium Polymer (LiPo)Lithium-Ion (Li-Ion)
Number of battery cellsDiffers49
Battery capacityDiffers62.8 Wh9210 mAh
Battery life (max)Known for one9 hUnknown — not stated by the source
Poweridentical
AC adapter powerKnown for one65 WUnknown — not stated by the source
Security1 differ
Cable lock slotDiffersYesNo
Fingerprint readerKnown for oneYesUnknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for oneRoHSUnknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STARUnknown — not stated by the source
Weight & dimensions4 differ
WeightDiffers2.29 kg2.53 kg
WidthDiffers379 mm375.9 mm
DepthDiffers252.4 mm248.9 mm
HeightDiffers20.7 mm27.9 mm
Packaging contentidentical
Cables includedKnown for oneACUnknown — not stated by the source
ManualKnown for oneYesUnknown — not stated by the source
Power cord includedKnown for oneYesUnknown — not stated by the source
Quick start guideKnown for oneYesUnknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for oneUnknown — not stated by the sourceNo
Intel segment taggingKnown for oneUnknown — not stated by the sourceProfessional

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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