Product comparison · 2 laptops

Acer Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840 vs Lenovo P51s + ThinkPad Stack Mobile Projector

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  • 104specifications compared
  • 58differ
  • 46identical
  • 85known for one product only

Key differences

  • Product type
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:Chromebook
    • P51s + ThinkPad Stack Mobile Projector:Mobile workstation
  • Product colour
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:Black, Blue
    • P51s + ThinkPad Stack Mobile Projector:Black
  • Display diagonal
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:29.5 cm (11.6")
    • P51s + ThinkPad Stack Mobile Projector:39.6 cm (15.6")
  • Display resolution
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:1366 x 768 pixels
    • P51s + ThinkPad Stack Mobile Projector:1920 x 1080 pixels
  • HD type
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:HD
    • P51s + ThinkPad Stack Mobile Projector:Full HD
  • Processor family
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:Intel® Celeron®
    • P51s + ThinkPad Stack Mobile Projector:Intel® Core™ i7
  • Processor model
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:N2840
    • P51s + ThinkPad Stack Mobile Projector:i7-7500U
  • Processor threads
    • Chromebook 11 CB3-131-C4SG Intel® Celeron® N2840:2
    • P51s + ThinkPad Stack Mobile Projector:4

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Differences highlightedShow differences only (on)
Comparison of CB3-131-C4SG, P51s + ThinkPad Stack Mobile Projector
189 specifications
Design2 differ
Product typeDiffersChromebookMobile workstation
Product colourDiffersBlack, BlueBlack
Housing materialKnown for oneUnknown — not stated by the sourceGlass fibre, Plastic
Market positioningKnown for oneUnknown — not stated by the sourceHigh performance
Display3 differ
Display diagonalDiffers29.5 cm (11.6")39.6 cm (15.6")
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeDiffersHDFull HD
Panel typeKnown for oneUnknown — not stated by the sourceIPS
Display surfaceKnown for oneUnknown — not stated by the sourceMatt
Screen shapeKnown for oneUnknown — not stated by the sourceFlat
Display brightnessKnown for oneUnknown — not stated by the source250 cd/m²
Processor16 differ
Processor familyDiffersIntel® Celeron®Intel® Core™ i7
Processor generationKnown for oneUnknown — not stated by the source7th gen Intel® Core™ i7
Processor modelDiffersN2840i7-7500U
Processor threadsDiffers24
Processor boost frequencyDiffers2.58 GHz3.5 GHz
Processor frequencyDiffers2.16 GHz2.7 GHz
System bus rateKnown for oneUnknown — not stated by the source4 GT/s
Processor cacheDiffers1 MB4 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersBGA 1170BGA 1356
Processor lithographyDiffers22 nm14 nm
Processor operating modesDiffers32-bit, 64-bit64-bit
Processor codenameDiffersBay TrailKaby Lake
Bus typeKnown for oneUnknown — not stated by the sourceOPI
SteppingDiffersC0H0
Thermal Design Power (TDP)Differs7.5 W15 W
Configurable TDP-up frequencyKnown for oneUnknown — not stated by the source2.9 GHz
Configurable TDP-upKnown for oneUnknown — not stated by the source25 W
Configurable TDP-downKnown for oneUnknown — not stated by the source7.5 W
Configurable TDP-down frequencyKnown for oneUnknown — not stated by the source0.8 GHz
Maximum number of PCI Express lanesDiffers412
PCI Express configurationsDiffers1x41x2+2x1, 1x4, 2x2, 4x1
PCI Express slots versionDiffers2.03.0
Processor seriesKnown for oneIntel Celeron Processor N2000 Series for MobileUnknown — not stated by the source
Scenario Design Power (SDP)Known for one4.5 WUnknown — not stated by the source
Memory2 differ
Internal memoryDiffers4 GB16 GB
Internal memory typeDiffersDDR3L-SDRAMDDR4-SDRAM
Memory clock speedKnown for oneUnknown — not stated by the source2133 MHz
Memory form factorKnown for oneUnknown — not stated by the sourceSO-DIMM
Memory layout (slots x size)Known for oneUnknown — not stated by the source1 x 16 GB
Memory slotsKnown for oneUnknown — not stated by the source2x SO-DIMM
Maximum internal memoryKnown for oneUnknown — not stated by the source32 GB
Maximum internal memory (64-bit)Known for oneUnknown — not stated by the source32 GB
Storage3 differ
Total storage capacityDiffers16 GB512 GB
Storage mediaDiffersFlashSSD
Number of SSDs installedKnown for oneUnknown — not stated by the source1
SSD capacityKnown for oneUnknown — not stated by the source512 GB
SSD form factorKnown for oneUnknown — not stated by the sourceM.2
Compatible memory cardsDiffersSDMMC, SD, SDHC, SDXC
Graphics5 differ
Discrete graphics cardDiffersNoYes
Discrete graphics card modelDiffersNot availableNVIDIA® Quadro® M520
Discrete graphics card memoryKnown for oneUnknown — not stated by the source2 GB
Discrete graphics memory typeKnown for oneUnknown — not stated by the sourceGDDR5
On-board graphics card modelDiffersIntel® HD GraphicsIntel® HD Graphics 620
Maximum on-board graphics card memoryKnown for oneUnknown — not stated by the source32 GB
On-board graphics card base frequencyDiffers311 MHz300 MHz
On-board graphics card dynamic frequency (max)Differs792 MHz1050 MHz
On-board graphics card DirectX versionKnown for oneUnknown — not stated by the source12.0
On-board graphics card OpenGL versionKnown for oneUnknown — not stated by the source4.4
On-board graphics card IDKnown for oneUnknown — not stated by the source0x5916
On-board graphics card burst frequencyKnown for one792 MHzUnknown — not stated by the source
Audioidentical
Audio chipKnown for oneUnknown — not stated by the sourceRealtek ALC3268
Speaker powerKnown for oneUnknown — not stated by the source2 W
Cameraidentical
Front camera signal formatKnown for oneUnknown — not stated by the source720p
Front camera resolutionKnown for one1280 x 720 pixelsUnknown — not stated by the source
Optical driveidentical
LightScribeKnown for oneUnknown — not stated by the sourceNo
Network1 differ
Ethernet LANDiffersNoYes
Ethernet LAN data ratesKnown for oneUnknown — not stated by the source10,100,1000 Mbit/s
Bluetooth versionKnown for oneUnknown — not stated by the source4.1
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers13
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers01
Ethernet LAN (RJ-45) portsDiffers01
HDMI versionKnown for oneUnknown — not stated by the source1.4b
Mini DisplayPorts quantityKnown for oneUnknown — not stated by the source1
Headphone outputsKnown for oneUnknown — not stated by the source0
Microphone inKnown for oneUnknown — not stated by the sourceNo
Docking connectorKnown for oneUnknown — not stated by the sourceYes
USB Sleep-and-ChargeKnown for oneUnknown — not stated by the sourceYes
USB Sleep-and-Charge portsKnown for oneUnknown — not stated by the source1
Keyboard2 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Keyboard backlitKnown for oneUnknown — not stated by the sourceYes
Numeric keypadDiffersNoYes
Spill-resistant keyboardKnown for oneUnknown — not stated by the sourceYes
Keyboard languageKnown for oneFrenchUnknown — not stated by the source
Software1 differ
Operating system installedDiffersChromeOSWindows 10 Pro
Operating system architectureKnown for oneUnknown — not stated by the source64-bit
Processor special features11 differ
Graphics & IMC lithographyDiffers22 nm14 nm
Intel Clear Video TechnologyKnown for oneUnknown — not stated by the sourceYes
Intel Flex Memory AccessKnown for oneUnknown — not stated by the sourceYes
Intel Identity Protection Technology versionKnown for oneUnknown — not stated by the source1.00
Intel Smart Response Technology versionKnown for oneUnknown — not stated by the source1.00
Intel Software Guard Extensions (Intel SGX)Known for oneUnknown — not stated by the sourceYes
Intel Stable Image Platform Program (SIPP)Known for oneUnknown — not stated by the sourceNo
Intel Stable Image Platform Program (SIPP) versionKnown for oneUnknown — not stated by the source0.00
Intel TSX-NIKnown for oneUnknown — not stated by the sourceNo
Intel TSX-NI versionKnown for oneUnknown — not stated by the source0.00
Intel Trusted Execution TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel VT-x with Extended Page Tables (EPT)Known for oneUnknown — not stated by the sourceYes
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 oneUnknown — not stated by the sourceYes
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneUnknown — not stated by the sourceYes
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® My WiFi Technology (Intel® MWT)Known for oneUnknown — not stated by the sourceYes
Intel® OS GuardKnown for oneUnknown — not stated by the sourceYes
Intel® Small Business Advantage (Intel® SBA)Known for oneUnknown — not stated by the sourceYes
Intel® Smart Response TechnologyKnown for oneUnknown — not stated by the sourceYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers8210395451
Processor codeDiffersSR1YJSR2ZV
Processor package sizeDiffers25 x 27 mm42 x 24 mm
Supported instruction setsKnown for oneUnknown — not stated by the sourceAVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesKnown for oneUnknown — not stated by the sourceYes
Intel Smart Connect TechnologyKnown for oneYesUnknown — not stated by the source
Intel Smart Connect Technology versionKnown for one1.00Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for oneNoUnknown — not stated by the source
Battery2 differ
Number of battery cellsDiffers34+6
Battery life (max)Differs9 h26.8 h
Battery technologyKnown for oneLithium-Ion (Li-Ion)Unknown — not stated by the source
Battery capacityKnown for one37.7 WhUnknown — not stated by the source
Power1 differ
AC adapter powerDiffers45 W65 W
AC adapter input voltageKnown for oneUnknown — not stated by the source100 - 240 V
Securityidentical
Cable lock slotKnown for oneUnknown — not stated by the sourceYes
Fingerprint readerKnown for oneUnknown — not stated by the sourceYes
Trusted Platform Module (TPM)Known for oneUnknown — not stated by the sourceYes
Password protectionKnown for oneUnknown — not stated by the sourceYes
Password protection typeKnown for oneUnknown — not stated by the sourceHDD, Power on, Supervisor
Certificatesidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneUnknown — not stated by the sourceENERGY STAR
Weight & dimensions5 differ
WeightDiffers1.1 kg2.18 kg
WidthDiffers294 mm365.8 mm
DepthDiffers204 mm252.8 mm
Height (front)Differs1.86 cm2 cm
Height (rear)Differs1.86 cm2.02 cm
HeightKnown for one18.6 mmUnknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for oneUnknown — not stated by the sourceYes
Warranty cardKnown for oneYesUnknown — not stated by the source
Other featuresidentical
3DKnown for oneUnknown — not stated by the sourceNo

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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