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Product comparison · 2 laptops

Lenovo ThinkPad L520 Intel® Core™ i5 i5-2520M vs Lenovo ThinkPad W520 Intel® Core™ i7 i7-2820QM

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  • 128specifications compared
  • 37differ
  • 91identical
  • 43known for one product only

Key differences

  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i7
  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 2nd gen Intel® Core™ i7
  • Processor model
    • i5-2520M
    • i7-2820QM
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 4
    • 8
  • Processor boost frequency
    • 3.2 GHz
    • 3.4 GHz
  • Processor frequency
    • 2.5 GHz
    • 2.3 GHz

Side by side

Differences highlightedShow differences only
171 specifications
A

Lenovo

ThinkPad L520 Intel® Core™ i5 i5-2520M

Model L520

View product
B

Lenovo

ThinkPad W520 Intel® Core™ i7 i7-2820QM

Model W520

View product
Display1 differ
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeKnown for oneFull HD
LED backlightKnown for oneYes
Processor14 differ
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers2nd gen Intel® Core™ i52nd gen Intel® Core™ i7
Processor modelDiffersi5-2520Mi7-2820QM
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers3.2 GHz3.4 GHz
Processor frequencyDiffers2.5 GHz2.3 GHz
Processor cacheDiffers3 MB8 MB
Processor front side busKnown for one1600 MHz
Processor socketDiffersSocket 988Socket 1224
Processor seriesDiffersIntel Core i5-2500 Mobile SeriesIntel Core i7-2800 Mobile Series
SteppingDiffersJ1D2
Thermal Design Power (TDP)Differs35 W45 W
TjunctionDiffers100 °C100 C
CPU multiplier (bus/core ratio)Differs2523
System bus rateKnown for one5 GT/s
L3 cacheKnown for one3 MB
L2 cacheKnown for one3 MB
Memory3 differ
Internal memoryDiffers3 GB8 GB
Memory slotsDiffers2x SO-DIMM4x SO-DIMM
Memory slots (available)Known for one2
Maximum internal memoryDiffers8 GB32 GB
Memory layout (slots x size)Known for one1 x 1 + 1 x 2 GB
Storage3 differ
Total storage capacityDiffers320 GB500 GB
Storage mediaKnown for oneHDD
HDD capacityDiffers320 GB500 GB
HDD speedKnown for one7200 RPM
Card reader integratedDiffersNoYes
Compatible memory cardsKnown for oneMMC
Graphics1 differ
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneNVIDIA® Quadro® 2000M
Discrete graphics card memoryKnown for one2 GB
Graphics card familyKnown for oneIntel, NVIDIA
Discrete graphics memory typeKnown for oneGDDR3
Number of discrete graphics cardsKnown for one1
Maximum resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
Audio1 differ
Speaker powerDiffers1.5 W1 W
Built-in microphoneKnown for oneYes
Audio systemKnown for oneHD
Networkidentical
Wireless technologyKnown for oneWi-Fi
Wi-Fi standardsKnown for one802.11a, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers31
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers02
ExpressCard slotKnown for oneYes
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
Keyboard1 differ
Numeric keypadKnown for oneNo
Full-size keyboardDiffersNoYes
Windows keysKnown for oneYes
Softwareidentical
Operating system installedKnown for oneWindows 7 Professional
Operating system architectureKnown for one64-bit
Processor special features4 differ
Intel® Insider™DiffersNoYes
Processor ARK IDDiffers5222952227
Processor codeDiffersSR048SR00U
Processor package sizeDiffers37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 (rPGA988B); 31.0 x 24.0 (BGA1224)
Intel® Smart CacheKnown for oneYes
Batteryidentical
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Number of battery cellsKnown for one9
Battery life (max)Known for one8.9 h
Power1 differ
AC adapter powerDiffers65 W170 W
Securityidentical
Password protection typeKnown for oneHDD, Power on, Supervisor
Cable lock slot typeKnown for oneKensington
Trusted Platform Module (TPM)Known for oneYes
Sustainability1 differ
Sustainability certificatesDiffersENERGY STAREPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers2.6 kg3.11 kg
WidthDiffers379.9 mm372.8 mm
DepthDiffers246.8 mm245.1 mm
Height (front)Differs3.2 cm3.16 cm
Height (rear)Differs3.6 cm3.58 cm
Width (imperial)Known for one37.3 cm (14.7")
Depth (imperial)Known for one24.5 cm (9.65")
Height (front) (imperial)Known for one3.2 cm (1.26")
Height (rear) (imperial)Known for one3.58 cm (1.41")
HeightKnown for one32 mm
Other featuresidentical
Intel segment taggingKnown for oneProfessional
Power requirementsKnown for one100-240V
Modem typeKnown for oneNo

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