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Product comparison · 2 laptops

Lenovo ThinkPad L540 Intel® Core™ i5 i5-4200M Laptop vs Lenovo ThinkPad S540 Intel® Core™ i5 i5-4200U Laptop

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  • 150specifications compared
  • 44differ
  • 106identical
  • 49known for one product only

Key differences

  • Processor model
    • i5-4200M
    • i5-4200U
  • Processor boost frequency
    • 3.1 GHz
    • 2.6 GHz
  • Processor frequency
    • 2.5 GHz
    • 1.6 GHz
  • Processor socket
    • PGA946
    • BGA 1168
  • Bus type
    • DMI
    • DMI2
  • Thermal Design Power (TDP)
    • 37 W
    • 15 W
  • Maximum number of PCI Express lanes
    • 16
    • 12
  • PCI Express configurations
    • 1x16, 2x8, 1x8+2x4
    • 1x4, 2x4

Side by side

Differences highlightedShow differences only
199 specifications
A

Lenovo

ThinkPad L540 Intel® Core™ i5 i5-4200M Laptop

Model L540

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B

Lenovo

ThinkPad S540 Intel® Core™ i5 i5-4200U Laptop

Model S540

View product
Displayidentical
Display resolutionKnown for one1920 x 1080 pixels
TouchscreenKnown for oneNo
HD typeKnown for oneFull HD
Native aspect ratioKnown for one16:9
Display brightnessKnown for one300 cd/m²
Dual-screenKnown for oneNo
Contrast ratio (typical)Known for one500:1
Processor9 differ
Processor modelDiffersi5-4200Mi5-4200U
Processor boost frequencyDiffers3.1 GHz2.6 GHz
Processor frequencyDiffers2.5 GHz1.6 GHz
System bus rateKnown for one5 GT/s
Processor socketDiffersPGA946BGA 1168
Bus typeDiffersDMIDMI2
Thermal Design Power (TDP)Differs37 W15 W
Maximum number of PCI Express lanesDiffers1612
PCI Express configurationsDiffers1x16, 2x8, 1x8+2x41x4, 2x4
PCI Express slots versionDiffers3.02.0
Memory1 differ
Internal memoryDiffers4 GB8 GB
Memory layout (slots x size)Known for one1 x 4 GB
Storage4 differ
Total storage capacityDiffers516 GB1 TB
Storage mediaDiffersHDD+SSDHDD
HDD capacityDiffers500 GB1 TB
HDD interfaceKnown for oneSATA III
HDD speedKnown for one7200 RPM
Number of SSDs installedKnown for one1
SSD capacityKnown for one16 GB
Optical drive typeDiffersDVD±RWNo
Graphics7 differ
Discrete graphics cardDiffersNoYes
Discrete graphics card modelDiffersNot availableAMD Radeon HD 8670M
On-board graphics card modelDiffersIntel® HD Graphics 4600Intel® HD Graphics 4400
On-board graphics card base frequencyDiffers400 MHz200 MHz
On-board graphics card dynamic frequency (max)Differs1150 MHz1000 MHz
On-board graphics card DirectX versionDiffers11.112
On-board graphics card IDDiffers0x4160xA16
Discrete graphics card memoryKnown for one2 GB
Discrete graphics memory typeKnown for oneGDDR5
Number of discrete graphics cards installedKnown for one1
Number of discrete graphics cards supportedKnown for one1
Audio1 differ
Audio systemDiffersHDDolby Home Theater v4
Speaker powerKnown for one2 W
Network1 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standardKnown for oneWi-Fi 5 (802.11ac)
Wi-Fi data rate (max)Known for one300 Mbit/s
Ports & interfaces7 differ
USB 2.0 ports quantityDiffers30
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
HDMI ports quantityDiffers01
Mini DisplayPorts quantityKnown for one1
VGA (D-Sub) ports quantityDiffers10
Headphone outputsDiffers10
Microphone inDiffersYesNo
ExpressCard slotDiffersYesNo
Total number of SATA connectorsKnown for one4
Number of SATA III connectorsKnown for one4
Performanceidentical
Motherboard chipsetKnown for oneIntel® HM86
Keyboardidentical
Pointing deviceKnown for oneTouchpad
Keyboard backlitKnown for oneYes
Full-size keyboardKnown for oneYes
Processor special features7 differ
Intel Enhanced Halt StateDiffersNoYes
Intel Rapid Storage TechnologyDiffersNoYes
Intel® My WiFi Technology (Intel® MWT)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Processor ARK IDDiffers7634875459
Processor codeDiffersSR1HASR170
Processor package sizeDiffers37.5 x 37.5 x 4.7 mm40 x 24 x 1.5 mm
Supported instruction setsDiffersAVX 2.0, SSE4.1, SSE4.2AVX 2.0
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 oneNo
Battery4 differ
Battery technologyDiffersLithium-Ion (Li-Ion)Lithium Polymer (LiPo)
Number of battery cellsDiffers64
Battery capacityDiffers56 Wh62.8 Wh
Battery life (max)Differs11 h9 h
Poweridentical
AC adapter powerKnown for one65 W
Security1 differ
Cable lock slotDiffersNoYes
Trusted Platform Module (TPM)Known for oneYes
Password protectionKnown for oneYes
Password protection typeKnown for oneHDD, Power on, Supervisor
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 35 °C
Storage temperature (T-T)Known for one5 - 43 °C
Operating relative humidity (H-H)Known for one8 - 95%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one0 - 2438 m
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STAR
Weight & dimensions2 differ
WeightKnown for one2.6 kg
WidthDiffers377 mm379 mm
DepthDiffers247 mm253 mm
Height (front)Known for one3.1 cm
Height (rear)Known for one3.62 cm
Other featuresidentical
Intel segment taggingKnown for oneHome office, Small Business
Optical driveidentical
LightScribeKnown for oneNo

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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