Product comparison · 2 laptops

Lenovo T420+Mini Dock Series 3 vs Lenovo T520 + 433610W

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  • 123specifications compared
  • 27differ
  • 96identical
  • 24known for one product only

Key differences

  • Display diagonal
    • T420+Mini Dock Series 3:35.6 cm (14")
    • T520 + 433610W:39.6 cm (15.6")
  • Processor family
    • T420+Mini Dock Series 3:Intel® Core™ i5
    • T520 + 433610W:Intel® Core™ i7
  • Processor generation
    • T420+Mini Dock Series 3:2nd gen Intel® Core™ i5
    • T520 + 433610W:2nd gen Intel® Core™ i7
  • Processor model
    • T420+Mini Dock Series 3:i5-2410M
    • T520 + 433610W:i7-2620M
  • Processor boost frequency
    • T420+Mini Dock Series 3:2.9 GHz
    • T520 + 433610W:3.4 GHz
  • Processor frequency
    • T420+Mini Dock Series 3:2.3 GHz
    • T520 + 433610W:2.7 GHz
  • Processor cache
    • T420+Mini Dock Series 3:3 MB
    • T520 + 433610W:4 MB
  • PCI Express configurations
    • T420+Mini Dock Series 3:1x8, 1x16, 2x4, 2x8
    • T520 + 433610W:1x16, 2x8, 1x8+2x4

Side by side

Differences highlightedShow differences only (on)
Comparison of T420+Mini Dock Series 3, T520 + 433610W
147 specifications
Display1 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Display brightnessKnown for one230 cd/m²Unknown — not stated by the source
LED backlightKnown for oneUnknown — not stated by the sourceYes
Processor9 differ
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers2nd gen Intel® Core™ i52nd gen Intel® Core™ i7
Processor modelDiffersi5-2410Mi7-2620M
Processor boost frequencyDiffers2.9 GHz3.4 GHz
Processor frequencyDiffers2.3 GHz2.7 GHz
Processor cacheDiffers3 MB4 MB
Processor seriesDiffersIntel Core i5-2400 Mobile SeriesIntel Core i7-2600 Mobile Series
PCI Express configurationsDiffers1x8, 1x16, 2x4, 2x81x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)Differs2327
Memoryidentical
Memory clock speedKnown for one1333 MHzUnknown — not stated by the source
Storageidentical
HDD speedKnown for one7200 RPMUnknown — not stated by the source
Card reader integratedKnown for oneYesUnknown — not stated by the source
Compatible memory cardsKnown for oneMMC, SD, SDHC, SDXCUnknown — not stated by the source
Graphics1 differ
Discrete graphics cardKnown for oneYesUnknown — not stated by the source
Discrete graphics card modelKnown for oneN12P-NS1Unknown — not stated by the source
Graphics card familyKnown for oneNVIDIAUnknown — not stated by the source
On-board graphics card dynamic frequency (max)Differs1200 MHz1300 MHz
Audioidentical
Number of built-in speakersKnown for one2Unknown — not stated by the source
Networkidentical
Bluetooth versionKnown for one3.0+HSUnknown — not stated by the source
Mobile network connectionKnown for oneUnknown — not stated by the sourceYes
Mobile network generationKnown for oneUnknown — not stated by the source3G
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers24
eSATA/USB 2.0 ports quantityDiffers10
VGA (D-Sub) ports quantityKnown for one1Unknown — not stated by the source
Microphone inDiffersYesNo
Docking connectorDiffersNoYes
Firewire (IEEE 1394) portsKnown for oneUnknown — not stated by the source0
Keyboard1 differ
Pointing deviceDiffersThinkPad UltraNavTouchpad
Full-size keyboardKnown for oneNoUnknown — not stated by the source
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 oneYesUnknown — not stated by the source
Processor ARK IDDiffers5222452231
Processor package sizeDiffers37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
CPU configuration (max)Known for oneUnknown — not stated by the source1
Processor codeKnown for oneUnknown — not stated by the sourceSR041
Batteryidentical
Number of battery cellsKnown for one6Unknown — not stated by the source
Securityidentical
Trusted Platform Module (TPM)Known for oneYesUnknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers2.24 kg2.52 kg
WidthDiffers340 mm373 mm
DepthDiffers229.8 mm245 mm
Height (front)Differs2.99 cm3.18 cm
Height (rear)Differs3.04 cm3.56 cm
Other featuresidentical
Compliance industry standardsKnown for oneIEEE 802.3, IEEE 802.3u, IEEE 802.3abUnknown — not stated by the source
Power requirementsKnown for one100-240VUnknown — not stated by the source
Power supply typeKnown for oneUnknown — not stated by the sourceAC - DC

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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