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Product comparison · 2 laptops

ASUS Zenbook UX31E-RY020X laptop Intel® Core™ i5 i5-2557M vs Lenovo L520 + 45N6693

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  • 122specifications compared
  • 38differ
  • 84identical
  • 50known for one product only

Key differences

  • Display diagonal
    • 33.8 cm (13.3")
    • 39.6 cm (15.6")
  • Processor model
    • i5-2557M
    • i5-2450M
  • Processor boost frequency
    • 2.7 GHz
    • 3.1 GHz
  • Processor frequency
    • 1.7 GHz
    • 2.5 GHz
  • Processor cache type
    • L3
    • Smart Cache
  • Thermal Design Power (TDP)
    • 17 W
    • 35 W
  • PCI Express configurations
    • 1x8, 1x16, 2x4, 2x8
    • 1x16, 2x8, 1x8+2x4
  • CPU multiplier (bus/core ratio)
    • 17
    • 25

Side by side

Differences highlightedShow differences only
172 specifications
A

ASUS

Zenbook UX31E-RY020X laptop Intel® Core™ i5 i5-2557M

Model UX31E-RY020X

View product
B

Lenovo

L520 + 45N6693View product
Designidentical
Product colourKnown for oneAluminium
Form factorKnown for oneClamshell
Housing materialKnown for oneAluminium
Display1 differ
Display diagonalDiffers33.8 cm (13.3")39.6 cm (15.6")
Display brightnessKnown for one220 cd/m²
Contrast ratio (typical)Known for one500:1
Processor8 differ
Processor modelDiffersi5-2557Mi5-2450M
Processor boost frequencyDiffers2.7 GHz3.1 GHz
Processor frequencyDiffers1.7 GHz2.5 GHz
Processor cache typeDiffersL3Smart Cache
Processor socketKnown for oneBGA 1023
Processor seriesDiffersIntel Core i5-2500 Mobile SeriesIntel Core i5-2400 Mobile Series
Thermal Design Power (TDP)Differs17 W35 W
PCI Express configurationsDiffers1x8, 1x16, 2x4, 2x81x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)Differs1725
Memoryidentical
Memory slotsKnown for one2x SO-DIMM
Maximum internal memoryKnown for one8 GB
Storage3 differ
Total storage capacityDiffers128 GB500 GB
Storage mediaDiffersSSDHDD
Number of SSDs installedKnown for one1
SSD capacityKnown for one128 GB
SSD interfaceKnown for oneSATA III
Optical drive typeDiffersNoDVD±RW
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
HDD interfaceKnown for oneSATA
HDD speedKnown for one7200 RPM
Graphics2 differ
On-board graphics card base frequencyDiffers350 MHz650 MHz
On-board graphics card dynamic frequency (max)Differs1200 MHz1300 MHz
Audio1 differ
Audio systemDiffersSonicMasterHigh Definition Audio
Built-in speaker(s)Known for oneYes
Speakers manufacturerKnown for oneBang & Olufsen
Number of built-in speakersKnown for one2
Speaker powerKnown for one1.5 W
Optical driveidentical
LightScribeKnown for oneNo
Network2 differ
Networking featuresKnown for oneWLAN
Ethernet LANDiffersNoYes
Bluetooth versionDiffers4.03.0+HS
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers13
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one1
eSATA/USB 2.0 ports quantityDiffers01
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
Ethernet LAN (RJ-45) portsDiffers01
HDMI ports quantityKnown for one0
DisplayPorts quantityDiffers01
Mini DisplayPorts quantityKnown for one0
VGA (D-Sub) ports quantityDiffers01
Firewire (IEEE 1394) portsKnown for one0
Thunderbolt ports quantityKnown for one0
Micro HDMI ports quantityKnown for one1
Mini VGA ports quantityKnown for one1
ExpressCard slotDiffersNoYes
Docking connectorKnown for oneYes
Performance1 differ
Motherboard chipsetDiffersIntel QS67 ExpressIntel® HM65 Express
Keyboard1 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Windows keysKnown for oneYes
Keyboard layoutKnown for oneQWERTY
Softwareidentical
Drivers includedKnown for oneYes
Processor special features4 differ
Intel Trusted Execution TechnologyDiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Processor ARK IDDiffers5462053452
Processor package sizeDiffers31.0 x 24.0 (BGA1023)37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Intel® Smart CacheKnown for oneYes
Processor codeKnown for oneSR04Z
Battery2 differ
Battery technologyDiffersLithium Polymer (LiPo)Lithium-Ion (Li-Ion)
Battery capacityKnown for one50 Wh
Battery life (max)Differs7 h6.6 h
Number of battery cellsKnown for one6
Poweridentical
AC adapter powerKnown for one45 W
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
AC adapter output currentKnown for one2.37 A
AC adapter output voltageKnown for one19 V
Security1 differ
Cable lock slotDiffersNoYes
Fingerprint readerKnown for oneYes
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers1.3 kg2.61 kg
WidthDiffers325 mm380 mm
DepthDiffers223 mm247 mm
Height (front)Differs3 mm3.2 cm
Height (rear)Differs1.7 cm3.6 cm
Packaging contentidentical
AC adapter includedKnown for oneYes
ManualKnown for oneYes
Other features1 differ
Power supply typeKnown for oneAC/DC
Intel segment taggingDiffersEnterpriseHome office, Small Business
Supplied AC adapter typeKnown for oneAC

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