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Product comparison · 2 laptops

HP 15-r257tu Intel® Celeron® N2840 Laptop vs Lenovo IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop

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  • 137specifications compared
  • 58differ
  • 79identical
  • 57known for one product only

Key differences

  • Product colour
    • Black, Grey
    • White
  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • HD type
    • HD
    • Full HD
  • Processor family
    • Intel® Celeron®
    • Intel® Core™ i5
  • Processor model
    • N2840
    • i5-5200U
  • Processor threads
    • 2
    • 4
  • Processor boost frequency
    • 2.58 GHz
    • 2.7 GHz
  • Processor frequency
    • 2.16 GHz
    • 2.2 GHz

Side by side

Differences highlightedShow differences only
194 specifications
A

HP

15-r257tu Intel® Celeron® N2840 Laptop

Model 15-r257tu

View product
B

Lenovo

IdeaPad Z51-70 Intel® Core™ i5 i5-5200U Laptop

Model Z51-70

View product
Design1 differ
Product colourDiffersBlack, GreyWhite
Housing materialKnown for onePolycarbonate (PC)
Country of originKnown for oneChina
Display2 differ
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeDiffersHDFull HD
Display surfaceKnown for oneGloss
Processor16 differ
Processor familyDiffersIntel® Celeron®Intel® Core™ i5
Processor generationKnown for one5th gen Intel® Core™ i5
Processor modelDiffersN2840i5-5200U
Processor threadsDiffers24
Processor boost frequencyDiffers2.58 GHz2.7 GHz
Processor frequencyDiffers2.16 GHz2.2 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers1 MB3 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersBGA 1170BGA 1168
Processor lithographyDiffers22 nm14 nm
Processor seriesDiffersIntel Celeron Processor N2000 Series for MobileIntel® Core™ i5-5200 Mobile Series
Processor codenameDiffersBay TrailBroadwell
Bus typeKnown for oneDMI2
SteppingDiffersC0F0
Thermal Design Power (TDP)Differs7.5 W15 W
Configurable TDP-downKnown for one7.5 W
Configurable TDP-down frequencyKnown for one0.6 GHz
TjunctionDiffers100 °C105 °C
Maximum number of PCI Express lanesDiffers412
PCI Express configurationsDiffers1x44x1, 2x4
Scenario Design Power (SDP)Known for one4.5 W
Memoryidentical
Memory slotsKnown for one2x SO-DIMM
Maximum internal memoryKnown for one16 GB
Maximum internal memory (64-bit)Known for one16 GB
Memory layout (slots x size)Known for one1 x 4 GB
Storage3 differ
Total storage capacityDiffers500 GB1 TB
HDD capacityDiffers500 GB1 TB
Compatible memory cardsDiffersSDMMC, SD, SDHC, SDXC
Graphics6 differ
Discrete graphics cardDiffersNoYes
Discrete graphics card modelDiffersNot availableAMD Radeon R7 M360
Discrete graphics card memoryKnown for one2 GB
On-board graphics card modelDiffersIntel® HD GraphicsIntel® HD Graphics 5500
Maximum on-board graphics card memoryKnown for one16 GB
On-board graphics card base frequencyDiffers311 MHz300 MHz
On-board graphics card dynamic frequency (max)Differs792 MHz900 MHz
On-board graphics card DirectX versionKnown for one11.2
On-board graphics card IDKnown for one0x1616
Number of discrete graphics cards installedDiffers01
On-board graphics card burst frequencyKnown for one792 MHz
Number of discrete graphics cards supportedKnown for one1
Audioidentical
Audio systemKnown for oneDolby Home Theater v4
Speaker powerKnown for one2.5 W
Cameraidentical
Front camera resolutionKnown for one1280 x 720 pixels
Network2 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesDiffers10,100 Mbit/s10,100,1000 Mbit/s
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers21
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
VGA (D-Sub) ports quantityDiffers01
Thunderbolt 2 ports quantityKnown for one0
Total number of SATA connectorsKnown for one2
Performanceidentical
Motherboard chipsetKnown for oneIntel SoC
Keyboardidentical
Island-style keyboardKnown for oneYes
Softwareidentical
Operating system architectureKnown for one64-bit
Drivers includedKnown for oneYes
Processor special features20 differ
Graphics & IMC lithographyDiffers22 nm14 nm
Intel Clear Video TechnologyDiffersNoYes
Intel FDI TechnologyDiffersNoYes
Intel Fast Memory AccessDiffersNoYes
Intel Flex Memory AccessDiffersNoYes
Intel Identity Protection Technology versionKnown for one1.00
Intel Small Business Advantage (SBA) versionKnown for one1.00
Intel Smart Connect TechnologyDiffersYesNo
Intel Smart Response Technology versionKnown for one1.00
Intel VT-x with Extended Page Tables (EPT)DiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Active Management Technology (Intel® AMT)Known for oneNo
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)DiffersNoYes
Intel® High Definition Audio (Intel® HD Audio)Known for oneNo
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneYes
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Matrix Storage Technology (Intel® MST)Known for oneNo
Intel® OS GuardKnown for oneYes
Intel® Rapid Start TechnologyKnown for oneNo
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Smart Response TechnologyKnown for oneYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Intel® Virtualization Technology (Intel® VT)DiffersVT-xVT-d, VT-x
Processor ARK IDDiffers8210385212
Processor codeDiffersSR1YJSR23Y
Processor package sizeDiffers25 x 27 mm40 x 24 x 1.3 mm
Supported instruction setsKnown for oneAVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffersNoYes
Intel Smart Connect Technology versionKnown for one1.00
Batteryidentical
Battery life (max)Known for one4 h
Battery capacityKnown for one41 Wh
Power1 differ
AC adapter powerDiffers45 W65 W
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
Securityidentical
Password protection typeKnown for oneHDD, Power on, Supervisor
Cable lock slot typeKnown for oneKensington
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Weight & dimensions4 differ
WeightDiffers2.23 kg2.3 kg
WidthDiffers378 mm384 mm
DepthDiffers259 mm265 mm
HeightDiffers25.3 mm24.6 mm
Packaging contentidentical
Quick start guideKnown for oneYes
Warranty cardKnown for oneYes
Optical driveidentical
LightScribeKnown for oneNo
Disc types supportedKnown for oneCD, DVD
Packaging dataidentical
Package widthKnown for one508 mm
Package depthKnown for one76 mm
Package heightKnown for one305 mm
Package weightKnown for one3.09 kg
Other featuresidentical
3DKnown for oneNo

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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