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Product comparison · 2 laptops

Lenovo T520 + 45N6678 vs Lenovo W520 + 45N6678

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  • 118specifications compared
  • 36differ
  • 82identical
  • 34known 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
    • i5-2410M
    • i7-2820QM
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 4
    • 8
  • Processor boost frequency
    • 2.9 GHz
    • 3.4 GHz
  • Processor cache
    • 3 MB
    • 8 MB

Side by side

Differences highlightedShow differences only
152 specifications
A

Lenovo

T520 + 45N6678View product
B

Lenovo

W520 + 45N6678View product
Display1 differ
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
Display brightnessKnown for one220 cd/m²
Contrast ratio (typical)Known for one500:1
HD typeKnown for oneFull HD
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 layout (slots x size)Known for one2 x 2 GB
Memory slotsDiffers2x SO-DIMM4x SO-DIMM
Maximum internal memoryDiffers8 GB32 GB
Storage2 differ
Total storage capacityDiffers320 GB500 GB
Optical drive typeDiffersDVD-RWDVD-ROM
Card reader integratedKnown for oneYes
Compatible memory cardsKnown for oneMMC, SD, SDHC, SDXC
HDD capacityKnown for one500 GB
Graphics3 differ
Discrete graphics card modelDiffersIntel® HD Graphics 3000NVIDIA® Quadro® 2000M
Graphics card familyDiffersIntelNVIDIA
On-board graphics card dynamic frequency (max)Differs1200 MHz1300 MHz
Maximum resolutionKnown for one1920 x 1200 pixels
Audioidentical
Audio systemKnown for oneHigh Definition Audio
Number of built-in speakersKnown for one2
Speaker powerKnown for one1 W
Network1 differ
Networking featuresKnown for oneGigabit Ethernet
BluetoothDiffersYesNo
Wireless technologyKnown for oneWi-Fi
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers41
Firewire (IEEE 1394) portsDiffers10
ExpressCard slotDiffersYesNo
SmartCard slotKnown for oneYes
Modem (RJ-11) portsKnown for one1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one2
eSATA/USB 2.0 ports quantityKnown for one1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
HDMI ports quantityKnown for one0
Thunderbolt ports quantityKnown for one0
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
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
Battery2 differ
Number of battery cellsDiffers69
Battery life (max)Differs7.7 h9 h
Security1 differ
Cable lock slotDiffersYesNo
Cable lock slot typeKnown for oneIBM
Weight & dimensions1 differ
WeightDiffers2.51 kg2.7 kg
Other features1 differ
Internal modemKnown for oneYes
Modem speedKnown for one56 Kbit/s
Intel segment taggingDiffersHome office, Small BusinessProfessional
Designidentical
Product colourKnown for oneBlack
Certificatesidentical
CertificationKnown for oneISV
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR
Packaging contentidentical
AC adapter includedKnown for oneYes

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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