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Product comparison · 2 laptops

Lenovo T420+Mini Dock Series 3 vs Lenovo W520 + 45N6678

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  • 124specifications compared
  • 40differ
  • 84identical
  • 27known for one product only

Key differences

  • Display diagonal
    • 35.6 cm (14")
    • 39.6 cm (15.6")
  • Display resolution
    • 1600 x 900 pixels
    • 1920 x 1080 pixels
  • HD type
    • HD+
    • Full HD
  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i7
  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 2nd gen Intel® Core™ i7
  • Processor model
    • i5-2410M
    • i7-2820QM
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 4
    • 8

Side by side

Differences highlightedShow differences only
151 specifications
A

Lenovo

T420+Mini Dock Series 3View product
B

Lenovo

W520 + 45N6678View product
Display3 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Display resolutionDiffers1600 x 900 pixels1920 x 1080 pixels
HD typeDiffersHD+Full HD
Display brightnessKnown for one230 cd/m²
LED backlightKnown for oneYes
Processor13 differ
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers2nd gen Intel® Core™ i52nd gen Intel® Core™ i7
Processor modelDiffersi5-2410Mi7-2820QM
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers2.9 GHz3.4 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers3 MB8 MB
Processor socketDiffersBGA 1023Socket 1224
Processor seriesDiffersIntel Core i5-2400 Mobile SeriesIntel Core i7-2800 Mobile Series
SteppingDiffersJ1D2
Thermal Design Power (TDP)Differs35 W45 W
TjunctionDiffers100 °C100 C
PCI Express configurationsDiffers1x8, 1x16, 2x4, 2x81x16, 2x8, 1x8+2x4
Processor front side busKnown for one1333 MHz
Memory2 differ
Memory slotsDiffers2x SO-DIMM4x SO-DIMM
Maximum internal memoryDiffers8 GB32 GB
Storage1 differ
Optical drive typeDiffersDVD-RWDVD-ROM
Card reader integratedKnown for oneYes
Compatible memory cardsKnown for oneMMC, SD, SDHC, SDXC
HDD capacityKnown for one500 GB
Graphics2 differ
Discrete graphics card modelDiffersN12P-NS1NVIDIA® Quadro® 2000M
On-board graphics card dynamic frequency (max)Differs1200 MHz1300 MHz
Maximum resolutionKnown for one1920 x 1200 pixels
Audioidentical
Number of built-in speakersKnown for one2
Network1 differ
Networking featuresKnown for oneGigabit Ethernet
BluetoothDiffersYesNo
Bluetooth versionKnown for one3.0+HS
Cabling technologyKnown for one10/100/1000Base-T(X)
Wireless technologyKnown for oneWi-Fi
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers21
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers02
Docking connectorDiffersNoYes
ExpressCard slotDiffersYesNo
SmartCard slotKnown for oneNo
Firewire (IEEE 1394) portsKnown for one0
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
Keyboardidentical
Full-size keyboardKnown for oneNo
Processor special features6 differ
Intel Trusted Execution TechnologyDiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Smart CacheKnown for oneYes
Processor ARK IDDiffers5222452227
Processor package sizeDiffers37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 (rPGA988B); 31.0 x 24.0 (BGA1224)
CPU configuration (max)Known for one1
Processor codeKnown for oneSR00U
Battery1 differ
Number of battery cellsDiffers69
Battery life (max)Known for one9 h
Security1 differ
Cable lock slotDiffersYesNo
Cable lock slot typeKnown for oneKensington
Trusted Platform Module (TPM)Known for oneYes
Weight & dimensions5 differ
WeightDiffers2.24 kg2.7 kg
WidthDiffers340 mm372.8 mm
DepthDiffers229.8 mm245.1 mm
Height (front)Differs2.99 cm3.18 cm
Height (rear)Differs3.04 cm3.56 cm
Other features1 differ
Compliance industry standardsKnown for oneIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Power requirementsKnown for one100-240V
Intel segment taggingDiffersHome office, Small BusinessProfessional
Certificatesidentical
CertificationKnown for oneISV
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR

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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