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Product comparison · 2 laptops

Lenovo E520 + 0A33943 + 57Y4608 vs Lenovo T420s + ThinkPad Mini Dock Series 3 (EU)

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  • 121specifications compared
  • 30differ
  • 91identical
  • 19known for one product only

Key differences

  • Display diagonal
    • 39.6 cm (15.6")
    • 35.6 cm (14")
  • Display resolution
    • 1366 x 768 pixels
    • 1600 x 900 pixels
  • Display brightness
    • 220 cd/m²
    • 250 cd/m²
  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i7
  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 2nd gen Intel® Core™ i7
  • Processor model
    • i5-2410M
    • i7-2620M
  • Processor boost frequency
    • 2.9 GHz
    • 3.4 GHz
  • Processor frequency
    • 2.3 GHz
    • 2.7 GHz

Side by side

Differences highlightedShow differences only
140 specifications
A

Lenovo

E520 + 0A33943 + 57Y4608View product
B

Lenovo

T420s + ThinkPad Mini Dock Series 3 (EU)View product
Display3 differ
Display diagonalDiffers39.6 cm (15.6")35.6 cm (14")
Display resolutionDiffers1366 x 768 pixels1600 x 900 pixels
HD typeKnown for oneHD+
Display brightnessDiffers220 cd/m²250 cd/m²
Contrast ratio (typical)Known for one300:1
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 MHz
Storage1 differ
Total storage capacityDiffers500 GB160 GB
SSD capacityKnown for one160 GB
SSD interfaceKnown for oneSATA
HDD interfaceKnown for oneSATA
HDD speedKnown for one5400 RPM
Graphics3 differ
Discrete graphics card modelDiffersAMD Radeon HD 6630MNVIDIA® NVS™ 4200M
Graphics card familyDiffersAMDNVIDIA
On-board graphics card dynamic frequency (max)Differs1200 MHz1300 MHz
Networkidentical
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one3G
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers32
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one1
DisplayPorts quantityKnown for one1
Docking connectorDiffersNoYes
eSATA/USB 2.0 ports quantityKnown for one1
HDMI ports quantityKnown for one1
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
Processor special features6 differ
CPU configuration (max)Known for one1
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
Processor ARK IDDiffers5222452231
Processor codeKnown for oneSR041
Processor package sizeDiffers37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Intel® Smart CacheKnown for oneYes
Battery1 differ
Battery life (max)Differs6.2 h5.5 h
Securityidentical
Fingerprint readerKnown for oneYes
Weight & dimensions5 differ
WeightDiffers2.4 kg1.67 kg
WidthDiffers380 mm343 mm
DepthDiffers248.5 mm230.1 mm
Height (front)Differs2.93 cm2.12 cm
Height (rear)Differs3.37 cm2.6 cm
Other featuresidentical
Supplied AC adapter typeKnown for oneAC

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