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Product comparison · 2 laptops

Lenovo T420s + 45N6679 vs Lenovo X1 Carbon

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  • 123specifications compared
  • 35differ
  • 88identical
  • 32known for one product only

Key differences

  • Display diagonal
    • 35.6 cm (14")
    • 33.8 cm (13.3")
  • Display resolution
    • 1600 x 900 pixels
    • 1366 x 768 pixels
  • Display brightness
    • 250 cd/m²
    • 350 cd/m²
  • Processor family
    • Intel® Core™ i7
    • Intel® Core™ i5
  • Processor generation
    • 2nd gen Intel® Core™ i7
    • 2nd gen Intel® Core™ i5
  • Processor model
    • i7-2620M
    • i5-2520M
  • Processor boost frequency
    • 3.4 GHz
    • 3.2 GHz
  • Processor frequency
    • 2.7 GHz
    • 2.5 GHz

Side by side

Differences highlightedShow differences only
155 specifications
A

Lenovo

T420s + 45N6679View product
B

Lenovo

X1 CarbonView product
Designidentical
Product typeKnown for oneUltrabook
Product colourKnown for oneBlack
Display3 differ
Display diagonalDiffers35.6 cm (14")33.8 cm (13.3")
Display resolutionDiffers1600 x 900 pixels1366 x 768 pixels
TouchscreenKnown for oneNo
Display brightnessDiffers250 cd/m²350 cd/m²
HD typeKnown for oneHD+
LED backlightKnown for oneYes
Contrast ratio (typical)Known for one300:1
Processor9 differ
Processor familyDiffersIntel® Core™ i7Intel® Core™ i5
Processor generationDiffers2nd gen Intel® Core™ i72nd gen Intel® Core™ i5
Processor modelDiffersi7-2620Mi5-2520M
Processor boost frequencyDiffers3.4 GHz3.2 GHz
Processor frequencyDiffers2.7 GHz2.5 GHz
Processor cacheDiffers4 MB3 MB
Processor socketDiffersBGA 1023Socket 988
Processor seriesDiffersIntel Core i7-2600 Mobile SeriesIntel Core i5-2500 Mobile Series
CPU multiplier (bus/core ratio)Differs2725
Memory2 differ
Internal memoryDiffers4 GB8 GB
Memory clock speedKnown for one1333 MHz
Memory layout (slots x size)Known for one1 x 8 GB
Memory slotsDiffers2x SO-DIMM1x SO-DIMM
Storage1 differ
Number of HDDs installedKnown for one1
Optical drive typeDiffersDVD-RWNo
SSD interfaceKnown for oneSATA
Graphics2 differ
Discrete graphics card modelDiffersNVIDIA® NVS™ 4200MIntel® HD Graphics
Graphics card familyDiffersNVIDIAIntel
Audio1 differ
Audio systemDiffersHigh Definition AudioDolby Home Theater
Speaker powerKnown for one1 W
Cameraidentical
Front camera resolution (numeric)Known for one1.3 MP
Swivel webcamKnown for oneNo
Network1 differ
Networking featuresDiffersGigabit EthernetGigabit Ethernet, WLAN
Cabling technologyKnown for one10/100/1000Base-T(X)
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one3G
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers21
eSATA/USB 2.0 ports quantityKnown for one1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
HDMI ports quantityKnown for one1
HDMI versionKnown for one1.4a
DisplayPorts quantityDiffers10
Mini DisplayPorts quantityKnown for one1
Firewire (IEEE 1394) portsKnown for one0
Thunderbolt ports quantityKnown for one0
Docking connectorDiffersYesNo
ExpressCard slotDiffersYesNo
SmartCard slotDiffersYesNo
Processor special features3 differ
Intel® Insider™DiffersYesNo
Intel® Smart CacheKnown for oneYes
Processor ARK IDDiffers5223152229
Processor codeDiffersSR041SR048
Battery1 differ
Battery life (max)Differs5.5 h5.2 h
Number of battery cellsKnown for one6
Security1 differ
Cable lock slotDiffersYesNo
Cable lock slot typeKnown for oneIBM
Weight & dimensions5 differ
WeightDiffers1.67 kg1.69 kg
WidthDiffers343 mm337 mm
DepthDiffers230.1 mm231 mm
Height (front)Differs2.12 cm1.65 cm
Height (rear)Differs2.6 cm2.13 cm
Packaging contentidentical
AC adapter includedKnown for oneYes
Other features1 differ
Power requirementsKnown for one100 - 240V
Power supply typeKnown for oneAC
TV tuner integratedKnown for oneNo
Intel segment taggingDiffersHome office, Small BusinessEnterprise, Small Business
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express

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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