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Product comparison · 2 laptops

Lenovo Essential B40-30 Intel® Celeron® N2830 Laptop vs Lenovo T440s Win8.1 US

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  • 137specifications compared
  • 67differ
  • 70identical
  • 54known for one product only

Key differences

  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • Processor family
    • Intel® Celeron®
    • Intel® Core™ i7
  • Processor model
    • N2830
    • i7-4600U
  • Processor threads
    • 2
    • 4
  • Processor boost frequency
    • 2.41 GHz
    • 3.3 GHz
  • Processor frequency
    • 2.16 GHz
    • 2.1 GHz
  • Processor cache
    • 1 MB
    • 4 MB
  • Processor cache type
    • L2
    • Smart Cache

Side by side

Differences highlightedShow differences only
191 specifications
A

Lenovo

Essential B40-30 Intel® Celeron® N2830 Laptop

Model B40-30

View product
B

Lenovo

T440s Win8.1 USView product
Display1 differ
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeKnown for oneFull HD
Display surfaceKnown for oneMatt
Processor15 differ
Processor familyDiffersIntel® Celeron®Intel® Core™ i7
Processor generationKnown for one4th gen Intel® Core™ i7
Processor modelDiffersN2830i7-4600U
Processor threadsDiffers24
Processor boost frequencyDiffers2.41 GHz3.3 GHz
Processor frequencyDiffers2.16 GHz2.1 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers1 MB4 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersBGA 1170BGA 1168
Processor operating modesDiffers32-bit, 64-bit64-bit
Processor seriesDiffersIntel Celeron Processor N2000 Series for MobileIntel Core i7-4600 Mobile series
Processor codenameDiffersBay TrailHaswell
Bus typeKnown for oneDMI2
SteppingDiffersC0D0
Thermal Design Power (TDP)Differs7.5 W15 W
Maximum number of PCI Express lanesDiffers412
PCI Express configurationsDiffers1x44x1, 2x4
Scenario Design Power (SDP)Known for one4.5 W
Memory5 differ
Internal memoryDiffers4 GB12 GB
Memory form factorKnown for oneOn-board + SO-DIMM
Memory layout (slots x size)Differs1 x 4 GB1 x 4 + 1 x 8 GB
Memory slotsDiffers2x SO-DIMM1x SO-DIMM
Maximum internal memoryDiffers8 GB12 GB
Maximum internal memory (64-bit)Differs8 GB12 GB
Storage3 differ
Total storage capacityDiffers500 GB256 GB
Storage mediaDiffersHDDSSD
Number of SSDs installedKnown for one1
SSD capacityKnown for one256 GB
SSD interfaceKnown for oneSATA III
Optical drive typeDiffersDVD±RWNo
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
HDD interfaceKnown for oneSATA
HDD speedKnown for one5400 RPM
HDD sizeKnown for one2.5"
Graphics3 differ
Discrete graphics cardKnown for oneNo
Discrete graphics card modelKnown for oneNot available
On-board graphics card modelDiffersIntel® HD GraphicsIntel® HD Graphics 4400
Maximum on-board graphics card memoryKnown for one1.74 GB
On-board graphics card base frequencyDiffers313 MHz200 MHz
On-board graphics card dynamic frequency (max)Differs750 MHz1100 MHz
On-board graphics card DirectX versionKnown for one11.2/12
On-board graphics card OpenGL versionKnown for one4.3
On-board graphics card IDKnown for one0xA16
On-board graphics card burst frequencyKnown for one750 MHz
Audio1 differ
Audio systemDiffersHDDolby Home Theater v4
Optical driveidentical
LightScribeKnown for oneNo
Network2 differ
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
BluetoothDiffersNoYes
Bluetooth versionKnown for one4.0
Near Field Communication (NFC)Known for oneYes
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers20
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers13
HDMI ports quantityDiffers10
Mini DisplayPorts quantityKnown for one1
Docking connectorDiffersNoYes
SmartCard slotDiffersNoYes
Number of SATA III connectorsKnown for one4
Total number of SATA connectorsKnown for one2
Performanceidentical
Motherboard chipsetKnown for oneIntel SoC
Keyboard2 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Keyboard backlitKnown for oneYes
Numeric keypadDiffersYesNo
Spill-resistant keyboardKnown for oneYes
Full-size keyboardKnown for oneYes
Keyboard layoutKnown for oneQWERTY
Software1 differ
Operating system installedDiffersFreeDOSWindows 8.1 Pro
Operating system architectureKnown for one64-bit
Processor special features23 differ
Intel FDI TechnologyDiffersNoYes
Intel Identity Protection Technology versionDiffers0.001.00
Intel ME Firmware VersionKnown for one9.5
Intel Rapid Storage TechnologyDiffersNoYes
Intel Small Business Advantage (SBA) versionKnown for one1.00
Intel Smart Response Technology versionKnown for one1.00
Intel Stable Image Platform Program (SIPP)DiffersNoYes
Intel Stable Image Platform Program (SIPP) versionDiffers0.001.00
Intel TSX-NIKnown for oneNo
Intel TSX-NI versionKnown for one0.00
Intel Trusted Execution TechnologyDiffersNoYes
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® Anti-Theft Technology (Intel® AT)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® High Definition Audio (Intel® HD Audio)DiffersNoYes
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)DiffersNoYes
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Small Business Advantage (Intel® SBA)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Intel® Smart Response TechnologyDiffersNoYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers8107176616
Processor codeDiffersSR1W4SR1EA
Processor package sizeDiffers25 x 27 mm40 x 24 x 1.5 mm
Supported instruction setsKnown for oneAVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffersNoYes
Graphics & IMC lithographyKnown for one22 nm
Battery1 differ
Battery technologyDiffersLithium-Ion (Li-Ion)Lithium Polymer (LiPo)
Number of battery cellsKnown for one3+3
Battery capacityKnown for one47 Wh
Poweridentical
AC adapter powerKnown for one65 W
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
Security1 differ
Cable lock slotDiffersNoYes
Cable lock slot typeKnown for oneKensington
Fingerprint readerKnown for oneYes
Trusted Platform Module (TPM)Known for oneYes
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers2.15 kg1.5 kg
WidthDiffers340 mm332 mm
DepthDiffers247 mm227 mm
HeightDiffers24.5 mm22 mm
Other featuresidentical
Intel segment taggingKnown for oneHome office, Small Business

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