Product comparison · 2 laptops

Lenovo L540 + ThinkPad Pro Dock vs Lenovo IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop

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  • 140specifications compared
  • 44differ
  • 96identical
  • 51known for one product only

Key differences

  • Display diagonal
    • L540 + ThinkPad Pro Dock:39.6 cm (15.6")
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:35.6 cm (14")
  • Processor family
    • L540 + ThinkPad Pro Dock:Intel® Core™ i3
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:Intel® Core™ i5
  • Processor generation
    • L540 + ThinkPad Pro Dock:4th gen Intel® Core™ i3
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:4th gen Intel® Core™ i5
  • Processor model
    • L540 + ThinkPad Pro Dock:i3-4100M
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:i5-4210U
  • Processor frequency
    • L540 + ThinkPad Pro Dock:2.5 GHz
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:1.7 GHz
  • Processor socket
    • L540 + ThinkPad Pro Dock:PGA946
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:BGA 1168
  • Stepping
    • L540 + ThinkPad Pro Dock:C0
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:D0
  • Thermal Design Power (TDP)
    • L540 + ThinkPad Pro Dock:37 W
    • IdeaPad Z40-70 Intel® Core™ i5 i5-4210U Laptop:15 W

Side by side

Differences highlightedShow differences only (on)
Comparison of L540 + ThinkPad Pro Dock, Z40-70
191 specifications
Designidentical
Market positioningKnown for oneBusinessUnknown — not stated by the source
Display1 differ
Display diagonalDiffers39.6 cm (15.6")35.6 cm (14")
HD typeKnown for oneHDUnknown — not stated by the source
Display surfaceKnown for oneMattUnknown — not stated by the source
Display brightnessKnown for one220 cd/m²Unknown — not stated by the source
Contrast ratio (typical)Known for one500:1Unknown — not stated by the source
Processor10 differ
Processor familyDiffersIntel® Core™ i3Intel® Core™ i5
Processor generationDiffers4th gen Intel® Core™ i34th gen Intel® Core™ i5
Processor modelDiffersi3-4100Mi5-4210U
Processor frequencyDiffers2.5 GHz1.7 GHz
Processor socketDiffersPGA946BGA 1168
Processor seriesDiffersIntel Core i3-4100 Mobile SeriesIntel Core i5-4200 Mobile series
SteppingDiffersC0D0
Thermal Design Power (TDP)Differs37 W15 W
Maximum number of PCI Express lanesDiffers1612
PCI Express configurationsDiffers1x16, 1x8+2x4, 2x84x1, 2x4
Processor boost frequencyKnown for oneUnknown — not stated by the source2.7 GHz
Memory2 differ
Internal memoryDiffers4 GB8 GB
Memory layout (slots x size)Differs1 x 4 GB1 x 8 GB
Storage5 differ
Total storage capacityDiffers500 GB1 TB
HDD capacityDiffers500 GB1 TB
HDD interfaceDiffersSATA IIISATA
Optical drive typeDiffersDVD±RWDVD-ROM
Compatible memory cardsDiffersMMC, SD, SDHC, SDXCMMC, SD
HDD speedKnown for oneUnknown — not stated by the source5400 RPM
Graphics6 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 dynamic frequency (max)Differs1100 MHz1000 MHz
On-board graphics card DirectX versionDiffers11.2/1212
On-board graphics card OpenGL versionKnown for one4.3Unknown — not stated by the source
On-board graphics card IDDiffers0x4160xA16
Audio1 differ
Audio chipKnown for oneRealtek ALC3232Unknown — not stated by the source
Audio systemDiffersDolby AdvancedDolby Home Theater
Speaker powerKnown for one2 WUnknown — not stated by the source
Cameraidentical
Front camera signal formatKnown for one720pUnknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers32
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one0Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one0Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one0Unknown — not stated by the source
HDMI ports quantityDiffers01
Mini DisplayPorts quantityKnown for one1Unknown — not stated by the source
Docking connectorDiffersYesNo
ExpressCard slotDiffersYesNo
DVI portKnown for oneUnknown — not stated by the sourceNo
VGA (D-Sub) ports quantityKnown for oneUnknown — not stated by the source0
Headphone outputsKnown for oneUnknown — not stated by the source0
S/PDIF out portKnown for oneUnknown — not stated by the sourceNo
Microphone inKnown for oneUnknown — not stated by the sourceNo
CardBus PCMCIA slots quantityKnown for oneUnknown — not stated by the source0
CardBus PCMCIA slot typeKnown for oneUnknown — not stated by the sourceNo
SmartCard slotKnown for oneUnknown — not stated by the sourceNo
Total number of SATA connectorsKnown for oneUnknown — not stated by the source4
Number of SATA III connectorsKnown for oneUnknown — not stated by the source4
Keyboard2 differ
Pointing deviceDiffersTrackpadTouchpad
Numeric keypadDiffersYesNo
Spill-resistant keyboardKnown for oneYesUnknown — not stated by the source
Full-size keyboardKnown for oneYesUnknown — not stated by the source
Software1 differ
Operating system installedDiffersWindows 7 ProfessionalWindows 8.1
Recovery operating systemKnown for oneWindows 8.1 ProUnknown — not stated by the source
Trial softwareKnown for oneMicrosoft OfficeUnknown — not stated by the source
Processor special features10 differ
Intel Enhanced Halt StateDiffersNoYes
Intel Rapid Storage TechnologyDiffersNoYes
Intel Smart Connect TechnologyDiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® High Definition Audio (Intel® HD Audio)DiffersNoYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers7634681016
Processor codeDiffersSR1HBSR1EF
Processor package sizeDiffers37.5 x 37.5 x 4.7 mm40 x 24 x 1.5 mm
Supported instruction setsDiffersAVX 2.0AVX 2.0, SSE4.1, SSE4.2
Intel ME Firmware VersionKnown for oneUnknown — not stated by the source9.5
Intel Smart Connect Technology versionKnown for oneUnknown — not stated by the source1.00
UARTKnown for oneUnknown — not stated by the sourceYes
Batteryidentical
Battery technologyKnown for oneLithium-Ion (Li-Ion)Unknown — not stated by the source
Battery life (max)Known for oneUnknown — not stated by the source5 h
Poweridentical
AC adapter powerKnown for one65 WUnknown — not stated by the source
AC adapter frequencyKnown for one50 - 60 HzUnknown — not stated by the source
AC adapter input voltageKnown for one100 - 240 VUnknown — not stated by the source
Securityidentical
Trusted Platform Module (TPM)Known for oneYesUnknown — not stated by the source
Password protectionKnown for oneYesUnknown — not stated by the source
Password protection typeKnown for oneHDD, Power on, SupervisorUnknown — not stated by the source
Docking stationidentical
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 one1Unknown — not stated by the source
Docking station VGA (D-Sub) portKnown for oneYesUnknown — not stated by the source
Docking station DisplayPortKnown for oneYesUnknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for oneRoHSUnknown — not stated by the source
CertificationKnown for oneMIL-STD-810GUnknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STARUnknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers377 mm349 mm
DepthDiffers247 mm245 mm
WeightKnown for oneUnknown — not stated by the source2.1 kg
HeightKnown for oneUnknown — not stated by the source24.8 mm
Packaging contentidentical
Docking station includedKnown for oneYesUnknown — not stated by the source
Other featuresidentical
Intel segment taggingKnown for oneHome office, Small BusinessUnknown — 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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