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Product comparison · 2 laptops

Lenovo 305 15 vs Lenovo IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop

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  • 103specifications compared
  • 51differ
  • 52identical
  • 62known for one product only

Key differences

  • Product colour
    • Blue
    • White
  • Display diagonal
    • 39.6 cm (15.6")
    • 33.8 cm (13.3")
  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • HD type
    • HD
    • Full HD
  • Processor family
    • Intel® Pentium®
    • Intel® Core™ i5
  • Processor model
    • N3540
    • i5-5200U
  • Processor cores
    • 4
    • 2
  • Processor boost frequency
    • 2.66 GHz
    • 2.7 GHz

Side by side

Differences highlightedShow differences only
165 specifications
A

Lenovo

305 15View product
B

Lenovo

IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop

Model U31-70

View product
Design1 differ
Product colourDiffersBlueWhite
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Aluminium
Display3 differ
Display diagonalDiffers39.6 cm (15.6")33.8 cm (13.3")
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeDiffersHDFull HD
Panel typeKnown for oneIPS
Display brightnessKnown for one220 cd/m²
Contrast ratio (typical)Known for one700:1
Processor16 differ
Processor familyDiffersIntel® Pentium®Intel® Core™ i5
Processor generationKnown for one5th gen Intel® Core™ i5
Processor modelDiffersN3540i5-5200U
Processor coresDiffers42
Processor boost frequencyDiffers2.66 GHz2.7 GHz
Processor frequencyDiffers2.16 GHz2.2 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers2 MB3 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersBGA 1170BGA 1168
Processor lithographyDiffers22 nm14 nm
Processor seriesDiffersIntel® Pentium N3000 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
ECC supported by processorKnown for oneNo
Memory5 differ
Internal memoryDiffers4 GB8 GB
Memory clock speedDiffers1333 MHz1600 MHz
Memory layout (slots x size)Known for one1 x 8 GB
Memory slotsDiffers2x SO-DIMM1x SO-DIMM
Maximum internal memoryDiffers16 GB8 GB
Maximum internal memory (64-bit)Differs16 GB8 GB
Storage4 differ
Total storage capacityDiffers500 GB1 TB
Storage mediaDiffersHDDHybrid-HDD
HDD capacityDiffers500 GB1 TB
Hybrid-HDD cache typeKnown for oneFlash
Hybrid-HDD capacityKnown for one1 TB
Hybrid-HDD cache memoryKnown for one8 GB
Optical drive typeDiffersDVD±RWNo
HDD sizeKnown for one2.5"
Graphics3 differ
On-board graphics card modelDiffersIntel® HD GraphicsIntel® HD Graphics 5500
Maximum on-board graphics card memoryKnown for one16 GB
On-board graphics card base frequencyDiffers313 MHz300 MHz
On-board graphics card dynamic frequency (max)Differs896 MHz900 MHz
On-board graphics card IDKnown for one0x1616
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneNVIDIA® GeForce® 820M
Discrete graphics card memoryKnown for one1 GB
On-board graphics card burst frequencyKnown for one896 MHz
Audioidentical
Speaker powerKnown for one1.5 W
Cameraidentical
Front camera resolution (numeric)Known for one1 MP
Front camera resolutionKnown for one1280 x 720 pixels
Network1 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 ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers21
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one1
Total number of SATA connectorsKnown for one2
Keyboard1 differ
Numeric keypadDiffersYesNo
Softwareidentical
Trial softwareKnown for oneMcAfee LiveSafe
Processor special features11 differ
Graphics & IMC lithographyDiffers22 nm14 nm
Intel Clear Video TechnologyKnown for oneYes
Intel FDI TechnologyKnown for oneYes
Intel Fast Memory AccessKnown for oneYes
Intel Flex Memory AccessKnown for oneYes
Intel Identity Protection Technology versionKnown for one1.00
Intel Small Business Advantage (SBA) versionKnown for one1.00
Intel Smart Response Technology versionKnown for one1.00
Intel VT-x with Extended Page Tables (EPT)Known for oneYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneYes
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® OS GuardKnown for oneYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Smart Response TechnologyKnown for oneYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers8210585212
Processor codeDiffersSR1YWSR23Y
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 TechnologiesKnown for oneYes
Intel Smart Connect TechnologyKnown for oneYes
Intel Smart Connect Technology versionKnown for one1.00
Intel® Anti-Theft Technology (Intel® AT)Known for oneNo
Batteryidentical
Battery technologyKnown for oneLithium Polymer (LiPo)
Number of battery cellsKnown for one2
Battery capacityKnown for one35 Wh
Battery life (max)Known for one7 h
Poweridentical
AC adapter powerKnown for one45 W
Securityidentical
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
Password protectionKnown for oneYes
Password protection typeKnown for oneHDD, Power on, Supervisor
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Silver, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers2.3 kg1.56 kg
WidthDiffers380 mm323 mm
DepthDiffers262 mm230 mm
HeightDiffers24.7 mm19.3 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
ManualKnown for oneYes
Power cord 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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