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Product comparison · 2 laptops

ASUS X51L-AP172E, IT vs Lenovo ThinkPad T400 (6474R2G), FR

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  • 85specifications compared
  • 38differ
  • 47identical
  • 48known for one product only

Key differences

  • Display diagonal
    • 39.1 cm (15.4")
    • 35.8 cm (14.1")
  • Processor family
    • Intel® Pentium®
    • Intel® Core™2 Duo
  • Processor model
    • T3200
    • T9400
  • Processor frequency
    • 2 GHz
    • 2.53 GHz
  • Processor cache
    • 1 MB
    • 6 MB
  • Processor front side bus
    • 667 MHz
    • 1066 MHz
  • Processor socket
    • LGA 3647 (Socket P)
    • Socket 479
  • Processor lithography
    • 65 nm
    • 45 nm

Side by side

Differences highlightedShow differences only
133 specifications
A

ASUS

X51L-AP172E, ITView product
B

Lenovo

ThinkPad T400 (6474R2G), FRView product
Display1 differ
Display diagonalDiffers39.1 cm (15.4")35.8 cm (14.1")
Display surfaceKnown for oneGloss
Processor13 differ
Processor familyDiffersIntel® Pentium®Intel® Core™2 Duo
Processor modelDiffersT3200T9400
Processor frequencyDiffers2 GHz2.53 GHz
Processor cacheDiffers1 MB6 MB
Processor front side busDiffers667 MHz1066 MHz
Processor socketDiffersLGA 3647 (Socket P)Socket 479
Processor lithographyDiffers65 nm45 nm
Processor seriesKnown for oneIntel Core 2 Duo T9000 Series
Processor codenameDiffersMeromPenryn
SteppingDiffersM0E0
TjunctionDiffers100 °C105 °C
Number of Processing Die TransistorsDiffers291 M410 M
Processing Die sizeDiffers143 mm²107 mm²
CPU multiplier (bus/core ratio)Differs129.5
ECC supported by processorKnown for oneNo
Memory4 differ
Internal memoryDiffers1 GB2 GB
Internal memory typeDiffersDDR2-SDRAMDDR3-SDRAM
Memory clock speedDiffers667 MHz1066 MHz
Maximum internal memoryDiffers2 GB4 GB
Memory layout (slots x size)Known for one1 x 1 GB
Storage1 differ
Number of HDDs installedKnown for one1
Card reader integratedDiffersYesNo
HDD speedKnown for one5400 RPM
Optical drive typeKnown for oneDVD Super Multi DL
Graphics1 differ
Discrete graphics card modelDiffersIntel® GMA X3100Intel® GMA 4500MHD
Audio1 differ
Audio systemDiffersIntel HDAHDA 24-bit
Speaker powerKnown for one2 W
Audio system full duplexKnown for oneYes
Audio system direct 3D soundKnown for oneYes
Network2 differ
Wireless technologyDiffersIEEE 802.11b/gIntel WiFi 5100AGN
BluetoothDiffersNoYes
Bluetooth versionKnown for one2.0+EDR
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers43
Firewire (IEEE 1394) portsDiffers01
Docking connectorDiffersNoYes
CardBus PCMCIA slots quantityDiffers10
CardBus PCMCIA slot typeDiffersType IINo
USB 1.1 ports quantityKnown for one0
Softwareidentical
Bundled softwareKnown for oneYes
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)Known for oneNo
Embedded options availableDiffersNoYes
Idle StatesKnown for oneNo
Intel Clear Video TechnologyKnown for oneNo
Intel Dual Display Capable TechnologyKnown for oneNo
Intel Enhanced Halt StateKnown for oneNo
Intel FDI TechnologyKnown for oneNo
Intel Fast Memory AccessKnown for oneNo
Intel Flex Memory AccessKnown for oneNo
Intel Rapid Storage TechnologyKnown for oneNo
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)Known for oneNo
Intel Virtualization Technology (VT-x)DiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® AES New Instructions (Intel® AES-NI)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneNo
Intel® Clear Video HD Technology (Intel® CVT HD)Known for oneNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Intel® InTru™ 3D TechnologyKnown for oneNo
Intel® Insider™Known for oneNo
Intel® My WiFi Technology (Intel® MWT)Known for oneNo
Intel® Quick Sync Video TechnologyKnown for oneNo
Processor ARK IDDiffers3716035562
Processor codeDiffersSLAVGSLGEK
Processor package sizeKnown for one35 x 35 mm
Thermal Monitoring TechnologiesKnown for oneNo
Conflict-Free processorKnown for oneNo
Batteryidentical
Number of battery cellsKnown for one9
Battery life (max)Known for one9.9 h
Poweridentical
AC adapter powerKnown for one65 W
AC adapter input voltageKnown for one100 - 240 V
AC adapter output currentKnown for one3.42 A
AC adapter output voltageKnown for one19 V
Security1 differ
Cable lock slot typeDiffersKensingtonIBM
Fingerprint readerKnown for oneYes
Password protection typeKnown for oneBIOS
Weight & dimensions4 differ
WeightDiffers2.8 kg2.2 kg
WidthDiffers365 mm335.5 mm
DepthDiffers264 mm239 mm
HeightDiffers35.5 mm31.9 mm
Other featuresidentical
Intel segment taggingKnown for oneHome office, Small Business
Modem typeKnown for oneV.92
Cameraidentical
Front cameraKnown for oneNo
Performanceidentical
Motherboard chipsetKnown for oneIntel GL960 Express
Keyboardidentical
Pointing deviceKnown for oneTouchpad

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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