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Product comparison · 2 laptops

Acer Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop vs Lenovo IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop

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  • 114specifications compared
  • 58differ
  • 56identical
  • 66known for one product only

Key differences

  • Product colour
    • Black
    • White
  • Display diagonal
    • 39.6 cm (15.6")
    • 33.8 cm (13.3")
  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • Processor family
    • Intel® Celeron®
    • Intel® Core™ i5
  • Processor model
    • N2940
    • i5-5200U
  • Processor cores
    • 4
    • 2
  • Processor boost frequency
    • 2.25 GHz
    • 2.7 GHz
  • Processor frequency
    • 1.83 GHz
    • 2.2 GHz

Side by side

Differences highlightedShow differences only
180 specifications
A

Acer

Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop

Model ES1-512-C9KB

View product
B

Lenovo

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

Model U31-70

View product
Design1 differ
Product colourDiffersBlackWhite
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Aluminium
Display2 differ
Display diagonalDiffers39.6 cm (15.6")33.8 cm (13.3")
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeKnown for oneFull HD
Panel typeKnown for oneIPS
Display brightnessKnown for one220 cd/m²
Contrast ratio (typical)Known for one700:1
Processor16 differ
Processor familyDiffersIntel® Celeron®Intel® Core™ i5
Processor generationKnown for one5th gen Intel® Core™ i5
Processor modelDiffersN2940i5-5200U
Processor coresDiffers42
Processor boost frequencyDiffers2.25 GHz2.7 GHz
Processor frequencyDiffers1.83 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 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
FSB ParityKnown for oneNo
Scenario Design Power (SDP)Known for one4.5 W
ECC supported by processorKnown for oneNo
Memory1 differ
Internal memoryDiffers4 GB8 GB
Memory clock speedKnown for one1600 MHz
Memory layout (slots x size)Known for one1 x 8 GB
Maximum internal memory (64-bit)Known for one8 GB
Storage5 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 Super Multi DLNo
Compatible memory cardsDiffersSDMMC, SD, SDHC, SDXC
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)Differs854 MHz900 MHz
On-board graphics card DirectX versionKnown for one11.2
On-board graphics card IDKnown for one0x1616
Discrete graphics cardKnown for oneNo
Discrete graphics card modelKnown for oneNot available
On-board graphics card burst frequencyKnown for one854 MHz
Audioidentical
Number of built-in speakersKnown for one2
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 standardsDiffersWi-Fi 4 (802.11n), 802.11b, 802.11g802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers21
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
Combo headphone/mic portKnown for oneYes
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one1
Headphone outputsKnown for one1
Microphone inKnown for oneYes
ExpressCard slotKnown for oneNo
CardBus PCMCIA slots quantityKnown for one0
CardBus PCMCIA slot typeKnown for oneNo
SmartCard slotKnown for oneNo
Total number of SATA connectorsKnown for one2
Keyboard1 differ
Numeric keypadDiffersYesNo
Full-size keyboardKnown for oneYes
Keyboard layoutKnown for oneQWERTZ
Softwareidentical
Trial softwareKnown for oneMcAfee LiveSafe
Processor special features18 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 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® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)DiffersNoYes
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 IDDiffers8210485212
Processor codeDiffersSR1YVSR23Y
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 Demand Based SwitchingKnown for oneNo
Intel Dual Display Capable TechnologyKnown for oneNo
Intel Rapid Storage TechnologyKnown for oneNo
Intel Smart Connect TechnologyKnown for oneYes
Intel Smart Connect Technology versionKnown for one1.00
Intel Trusted Execution TechnologyKnown for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneNo
Intel® My WiFi Technology (Intel® MWT)Known for oneNo
Intel® Virtualization Technology (Intel® VT)Known for oneVT-x
Battery3 differ
Battery technologyDiffersLithium-Ion (Li-Ion)Lithium Polymer (LiPo)
Number of battery cellsDiffers42
Battery capacityDiffers48 Wh35 Wh
Battery voltageKnown for one15.2 V
Power1 differ
AC adapter input voltageDiffers120 - 230 V100 - 240 V
AC adapter output voltageKnown for one19 V
Securityidentical
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
WeightDiffers2.4 kg1.56 kg
WidthDiffers381.6 mm323 mm
DepthDiffers258 mm230 mm
HeightDiffers26.1 mm19.3 mm
Packaging contentidentical
ManualKnown 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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