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Product comparison · 2 laptops

Lenovo L420 + ThinkPad Mini Dock Series 3 vs Lenovo IdeaPad U400 Intel® Core™ i5 i5-2430M

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  • 136specifications compared
  • 25differ
  • 111identical
  • 39known for one product only

Key differences

  • Product colour
    • Black
    • Grey, Silver
  • Internal memory
    • 4 GB
    • 8 GB
  • Total storage capacity
    • 500 GB
    • 750 GB
  • HDD capacity
    • 500 GB
    • 750 GB
  • HDD interface
    • SATA
    • SATA II
  • HDD speed
    • 7200 RPM
    • 5400 RPM
  • Graphics card family
    • Intel
    • AMD, Intel
  • Audio system
    • HDA
    • HD

Side by side

Differences highlightedShow differences only
175 specifications
A

Lenovo

L420 + ThinkPad Mini Dock Series 3View product
B

Lenovo

IdeaPad U400 Intel® Core™ i5 i5-2430M

Model U400

View product
Design1 differ
Product colourDiffersBlackGrey, Silver
Form factorKnown for oneClamshell
Displayidentical
Display surfaceKnown for oneGloss
Display brightnessKnown for one200 cd/m²
Contrast ratio (typical)Known for one500:1
Memory1 differ
Internal memoryDiffers4 GB8 GB
Memory slots (available)Known for one1
Storage4 differ
Total storage capacityDiffers500 GB750 GB
HDD capacityDiffers500 GB750 GB
HDD interfaceDiffersSATASATA II
HDD speedDiffers7200 RPM5400 RPM
Card reader integratedKnown for oneNo
Graphics1 differ
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneAMD Radeon HD 6470M
Graphics card familyDiffersIntelAMD, Intel
Number of discrete graphics cardsKnown for one1
Audio1 differ
Audio systemDiffersHDAHD
Speaker powerKnown for one2 W
Cameraidentical
Front camera resolution (numeric)Known for one1.3 MP
Network1 differ
BluetoothDiffersNoYes
Bluetooth versionKnown for one3.0+HS
Cabling technologyKnown for one10/100/1000Base-T(X)
LAN controllerKnown for oneIntel® 82579V
Wireless technologyKnown for oneWi-Fi
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers32
eSATA/USB 2.0 ports quantityDiffers10
HDMI ports quantityDiffers01
DisplayPorts quantityDiffers10
VGA (D-Sub) ports quantityDiffers10
Microphone inDiffersYesNo
ExpressCard slotKnown for oneNo
SmartCard slotKnown for oneNo
Modem (RJ-11) portsKnown for one0
Keyboard1 differ
Pointing deviceDiffersTrackpadTouchpad
Full-size keyboardKnown for oneYes
Windows keysKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 7 ProfessionalWindows 7 Home Premium
Battery1 differ
Battery technologyDiffersLithium-Ion (Li-Ion)Lithium Polymer (LiPo)
Battery capacityKnown for one54 Wh
Battery life (max)Known for one7 h
Number of battery cellsKnown for one6
Poweridentical
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
Security1 differ
Cable lock slotDiffersYesNo
Fingerprint readerKnown for oneNo
Cable lock slot typeKnown for oneKensington
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Wi-Fi certifiedKnown for oneYes
Sustainability1 differ
Sustainability certificatesDiffersENERGY STAREPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers2.3 kg1.98 kg
WidthDiffers343.9 mm340 mm
DepthDiffers232.9 mm230 mm
HeightKnown for one22.6 mm
Width (imperial)Differs34.4 cm (13.5")34 cm (13.4")
Depth (imperial)Differs23.3 cm (9.17")23.1 cm (9.1")
Height (imperial)Known for one2.26 cm (0.89")
Height (front)Known for one3.2 cm
Height (rear)Known for one3.6 cm
Height (front) (imperial)Known for one3.2 cm (1.26")
Height (rear) (imperial)Known for one3.61 cm (1.42")
Other featuresidentical
Internal modemKnown for oneNo
Compliance industry standardsKnown for oneIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Intel segment taggingKnown for oneHome office, Small Business

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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