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Product comparison · 2 laptops

ASUS X551MA Intel® Celeron® N2815 Laptop vs Lenovo ThinkPad T540p

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  • 109specifications compared
  • 51differ
  • 58identical
  • 67known for one product only

Key differences

  • Processor family
    • Intel® Celeron®
    • Intel® Core™ i5
  • Processor model
    • N2815
    • i5-4200M
  • Processor threads
    • 2
    • 4
  • Processor boost frequency
    • 2.13 GHz
    • 3.1 GHz
  • Processor frequency
    • 1.86 GHz
    • 2.5 GHz
  • Processor cache
    • 1 MB
    • 3 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Processor socket
    • BGA 1170
    • PGA946

Side by side

Differences highlightedShow differences only
176 specifications
A

ASUS

X551MA Intel® Celeron® N2815 Laptop

Model X551MA

View product
B

Lenovo

ThinkPad T540pView product
Displayidentical
HD typeKnown for oneNot supported
Processor16 differ
Processor familyDiffersIntel® Celeron®Intel® Core™ i5
Processor generationKnown for one4th gen Intel® Core™ i5
Processor modelDiffersN2815i5-4200M
Processor threadsDiffers24
Processor boost frequencyDiffers2.13 GHz3.1 GHz
Processor frequencyDiffers1.86 GHz2.5 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers1 MB3 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersBGA 1170PGA946
Processor operating modesDiffers32-bit, 64-bit64-bit
Processor seriesDiffersIntel Celeron Processor N2000 Series for MobileIntel Core i5-4200 Mobile series
Processor codenameDiffersBay TrailHaswell
Bus typeKnown for oneDMI
SteppingDiffersB3C0
Thermal Design Power (TDP)Differs7.5 W37 W
TjunctionDiffers105 °C100 °C
Maximum number of PCI Express lanesDiffers416
PCI Express configurationsKnown for one1x16, 2x8, 1x8+2x4
PCI Express slots versionDiffers2.03.0
Scenario Design Power (SDP)Known for one4.5 W
Memory2 differ
Internal memory typeDiffersDDR3L-SDRAMDDR3-SDRAM
Maximum internal memoryDiffers4 GB16 GB
Memory clock speedKnown for one1066 MHz
Memory slotsKnown for one1x SO-DIMM
Storage1 differ
HDD speedKnown for one7200 RPM
Optical drive typeDiffersDVD Super MultiDVD Super Multi DL
Graphics3 differ
On-board graphics card modelDiffersIntel® HD GraphicsIntel® HD Graphics 4600
Maximum on-board graphics card memoryKnown for one1.74 GB
On-board graphics card base frequencyDiffers313 MHz400 MHz
On-board graphics card dynamic frequency (max)Differs756 MHz1150 MHz
On-board graphics card DirectX versionKnown for one11.1
On-board graphics card IDKnown for one0x416
Discrete graphics cardKnown for oneNo
Discrete graphics card modelKnown for oneNot available
On-board graphics card burst frequencyKnown for one756 MHz
Audio1 differ
Audio systemDiffersSonicMasterDolby Advanced
Network1 differ
Ethernet LAN data ratesDiffers10,100 Mbit/s10,100,1000 Mbit/s
Ports & interfaces3 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers14
eSATA/USB 2.0 ports quantityKnown for one0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
HDMI ports quantityDiffers10
Mini DisplayPorts quantityKnown for one1
Mini DisplayPort/Thunderbolt combo portKnown for oneNo
VGA (D-Sub) ports quantityKnown for one1
Firewire (IEEE 1394) portsKnown for one0
Thunderbolt ports quantityKnown for one0
Thunderbolt 2 ports quantityKnown for one0
Mini HDMI ports quantityKnown for one0
Micro HDMI ports quantityKnown for one0
LAN/VGA combo portKnown for oneNo
Mini VGA ports quantityKnown for one0
Headphone outputsDiffers01
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one1
USB 2.0 ports quantityKnown for one1
Docking connectorKnown for oneNo
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
Pointing deviceDiffersTouchpadThinkPad UltraNav
Keyboard backlitKnown for oneYes
Windows keysKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 8Windows 7 Professional
Processor special features16 differ
Intel Enhanced Halt StateDiffersYesNo
Intel Identity Protection Technology versionDiffers0.001.00
Intel Secure Key Technology versionKnown for one1.00
Intel TSX-NIKnown for oneNo
Intel TSX-NI versionKnown for one0.00
Intel VT-x with Extended Page Tables (EPT)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® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)DiffersNoYes
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Quick Sync Video TechnologyDiffersNoYes
Intel® Secure KeyKnown for oneYes
Intel® Smart CacheKnown for oneYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDDiffers7905176348
Processor codeDiffersSR1SJSR1HA
Processor package sizeDiffers25 x 27 mm37.5 x 37.5 x 4.7 mm
Supported instruction setsKnown for oneAVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffersNoYes
Graphics & IMC lithographyKnown for one22 nm
Intel Smart Connect TechnologyKnown for oneYes
Intel Smart Connect Technology versionKnown for one1.00
Intel® Active Management Technology (Intel® AMT)Known for oneNo
Intel® High Definition Audio (Intel® HD Audio)Known for oneNo
Intel® Matrix Storage Technology (Intel® MST)Known for oneNo
Intel® Rapid Start TechnologyKnown for oneNo
Intel® Small Business Advantage (Intel® SBA)Known for oneNo
Intel® Smart Response TechnologyKnown for oneNo
Battery1 differ
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Number of battery cellsDiffers36
Battery capacityKnown for one3000 mAh
Battery life (max)Known for one33 h
Poweridentical
AC adapter powerKnown for one33 W
AC adapter output currentKnown for one1.73 A
AC adapter output voltageKnown for one19 V
Power auto-sensingKnown for oneYes
Security1 differ
Cable lock slotDiffersYesNo
Cable lock slot typeKnown for oneKensington
Weight & dimensions4 differ
WeightDiffers2.15 kg2.5 kg
WidthDiffers380 mm376.4 mm
DepthDiffers251 mm247.9 mm
HeightDiffers36.6 mm27.7 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
Cables includedKnown for oneAC
Other featuresidentical
TV tuner integratedKnown for oneNo
Intel segment taggingKnown for oneHome office, Small Business
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR

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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