All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 laptops

HP ProBook LG657ET laptop Intel® Core™ i5 i5-2520M vs HP ProBook 4520s + AQ731AA

Add a product
  • 110specifications compared
  • 41differ
  • 69identical
  • 46known for one product only

Key differences

  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 4th gen Intel® Core™ i5
  • Processor model
    • i5-2520M
    • i5-480M
  • Processor boost frequency
    • 3.2 GHz
    • 2.93 GHz
  • Processor frequency
    • 2.5 GHz
    • 2.66 GHz
  • System bus rate
    • 5 GT/s
    • 2.5 GT/s
  • Processor socket
    • Socket 988
    • BGA 1288
  • Processor codename
    • Sandy Bridge
    • Arrandale
  • Stepping
    • J1
    • K0

Side by side

Differences highlightedShow differences only
156 specifications
A

HP

ProBook LG657ET laptop Intel® Core™ i5 i5-2520M

Model LG657ET

View product
B

HP

ProBook 4520s + AQ731AAView product
Designidentical
Product colourKnown for oneBlack
Housing materialKnown for onePlastic
Displayidentical
Display resolutionKnown for one1366 x 768 pixels
LED backlightKnown for oneYes
Native aspect ratioKnown for one16:9
Processor12 differ
Processor generationDiffers2nd gen Intel® Core™ i54th gen Intel® Core™ i5
Processor modelDiffersi5-2520Mi5-480M
Processor boost frequencyDiffers3.2 GHz2.93 GHz
Processor frequencyDiffers2.5 GHz2.66 GHz
System bus rateDiffers5 GT/s2.5 GT/s
Processor socketDiffersSocket 988BGA 1288
Processor seriesDiffersIntel Core i5-2500 Mobile SeriesIntel Core i5-400 Series
Processor codenameDiffersSandy BridgeArrandale
SteppingDiffersJ1K0
TjunctionDiffers100 °C105 °C
PCI Express configurationsDiffers1x16, 2x8, 1x8+2x41x16
CPU multiplier (bus/core ratio)Differs2520
Number of Processing Die TransistorsKnown for one382 M
Processing Die sizeKnown for one81 mm²
Memory2 differ
Internal memory typeKnown for oneDDR3-SDRAM
Memory clock speedDiffers1333 MHz1066 MHz
Maximum internal memoryDiffers16 GB8 GB
Storageidentical
Total HDDs capacityKnown for one320 GB
HDD capacityKnown for one320 GB
Compatible memory cardsKnown for oneMMC, SD
Graphics3 differ
On-board graphics card modelDiffersIntel® HD Graphics 3000Intel® HD Graphics
On-board graphics card base frequencyDiffers650 MHz500 MHz
On-board graphics card dynamic frequency (max)Differs1300 MHz766 MHz
On-board graphics card IDKnown for one0x116
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneAMD Radeon HD 5470
Audio1 differ
Audio systemDiffersSRSHigh Definition Audio
Networkidentical
Cabling technologyKnown for one10/100/1000Base-T(X)
Integrated 4G WiMAXKnown for oneYes
Networking featuresKnown for oneGigabit Ethernet
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers43
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one0
eSATA/USB 2.0 ports quantityKnown for one1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityDiffers01
HDMI ports quantityDiffers01
DisplayPorts quantityKnown for one1
Firewire (IEEE 1394) portsKnown for one1
Thunderbolt ports quantityKnown for one0
Modem (RJ-11) portsKnown for one1
Serial ports quantityKnown for one1
USB 1.1 ports quantityKnown for one1
Docking connectorKnown for oneNo
SmartCard slotKnown for oneYes
Keyboardidentical
Keyboard layoutKnown for oneQWERTY
Pointing deviceKnown for oneTouchpad
Processor special features16 differ
Intel® Wireless Display (Intel® WiDi)DiffersYesNo
Graphics & IMC lithographyDiffers32 nm45 nm
Intel Clear Video TechnologyDiffersNoYes
Intel Identity Protection Technology versionKnown for one1.00
Intel Trusted Execution TechnologyDiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Intel® AES New Instructions (Intel® AES-NI)DiffersYesNo
Intel® Anti-Theft Technology (Intel® AT)DiffersYesNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneYes
Intel® InTru™ 3D TechnologyDiffersYesNo
Intel® My WiFi Technology (Intel® MWT)DiffersYesNo
Intel® Quick Sync Video TechnologyDiffersYesNo
Intel® Turbo Boost TechnologyDiffers2.01.0
Processor ARK IDDiffers5222952952
Processor codeDiffersSR048SLC26
Processor package sizeDiffers37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)rPGA 37.5x 37.5, BGA 34x28
Supported instruction setsDiffersAVXSSE4.1, SSE4.2
Physical Address Extension (PAE)Known for oneYes
Batteryidentical
Battery capacityKnown for one55 Wh
Battery life (max)Known for one5 h
Poweridentical
AC adapter powerKnown for one90 W
Security1 differ
Cable lock slotDiffersNoYes
Trusted Platform Module (TPM)Known for oneYes
Password protection typeKnown for oneHDD, User
HDD user passwordKnown for oneYes
Cable lock slot typeKnown for oneKensington
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 35 °C
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR
Weight & dimensions3 differ
WeightDiffers2.5 kg2.39 kg
WidthDiffers374 mm371.8 mm
DepthDiffers251 mm249.6 mm
HeightKnown for one34 mm
Height (front)Known for one2.77 cm
Optical driveidentical
LightScribeKnown for oneYes
Performanceidentical
Motherboard chipsetKnown for oneIntel® HM57 Express

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.

More laptop comparisons

All laptop comparisons