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Product comparison · 2 laptops

Lenovo ThinkPad T400 (647425G) vs Lenovo ThinkPad T400 T9900

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  • 99specifications compared
  • 23differ
  • 76identical
  • 31known for one product only

Key differences

  • Processor model
    • P8600
    • T9900
  • Processor frequency
    • 2.4 GHz
    • 3.06 GHz
  • Processor cache
    • 3 MB
    • 6 MB
  • Stepping
    • R1
    • E0
  • Thermal Design Power (TDP)
    • 25 W
    • 35 W
  • CPU multiplier (bus/core ratio)
    • 9
    • 11.5
  • Maximum internal memory
    • 4 GB
    • 8 GB
  • Card reader integrated
    • No
    • Yes

Side by side

Differences highlightedShow differences only
130 specifications
A

Lenovo

ThinkPad T400 (647425G)View product
B

Lenovo

ThinkPad T400 T9900View product
Displayidentical
Display surfaceKnown for oneGloss
Processor7 differ
Processor modelDiffersP8600T9900
Processor frequencyDiffers2.4 GHz3.06 GHz
Processor cacheDiffers3 MB6 MB
Processor seriesDiffersIntel Core 2 Duo P8000 SeriesIntel Core 2 Duo T9000 Series
SteppingDiffersR1E0
Thermal Design Power (TDP)Differs25 W35 W
CPU multiplier (bus/core ratio)Differs911.5
Processor core voltage (AC)Known for one1.050 - 1.2125 V
Memory1 differ
Memory layout (slots x size)Known for one1 x 2 GB
Maximum internal memoryDiffers4 GB8 GB
Storage1 differ
Number of HDDs installedKnown for one1
Card reader integratedDiffersNoYes
HDD speedKnown for one7200 RPM
Graphicsidentical
Discrete graphics card memoryKnown for one0.25 GB
Audioidentical
Audio systemKnown for oneHDA 24-bit
Number of built-in speakersKnown for one2
Speaker powerKnown for one2 W
Camera1 differ
Front cameraDiffersNoYes
Network2 differ
Networking featuresKnown for oneGigabit Ethernet, WLAN
Wireless technologyDiffersIntel WiFi 5100AGN802.11b/g
BluetoothDiffersNoYes
Cabling technologyKnown for one10/100/1000Base-T(X)
Bluetooth versionKnown for one2.1+EDR
Ports & interfaces5 differ
Ethernet LAN (RJ-45) portsDiffers10
Docking connectorDiffersYesNo
ExpressCard slotDiffersNoYes
CardBus PCMCIA slot typeDiffersNoType II
Modem (RJ-11) portsDiffers10
Softwareidentical
Drivers includedKnown for oneYes
Trial softwareKnown for oneMicrosoft Office 2007
Processor special features4 differ
Idle StatesKnown for oneYes
Intel Enhanced Halt StateDiffersYesNo
Processor ARK IDDiffers3556839312
Processor codeDiffersSLGDZSLGKH
Processor package sizeDiffers35 x 35 mm35 mm
Battery1 differ
Number of battery cellsKnown for one6
Battery life (max)Differs6.6 h9 h
Battery capacityKnown for one7800 mAh
Securityidentical
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneIBM
Fingerprint readerKnown for oneYes
HDD user passwordKnown for oneYes
Weight & dimensions1 differ
WeightDiffers2.2 kg2.13 kg
WidthKnown for one335.5 mm
DepthKnown for one239 mm
HeightKnown for one31.9 mm
Dimensions (WxDxH)Known for one335.3 x 238 x 27.6 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
Remote control includedKnown for oneNo
Other featuresidentical
Modem speedKnown for one56 Kbit/s
Power requirementsKnown for one100 - 240 V
Wake-on-LAN readyKnown for oneYes
Keyboardidentical
Keyboard layoutKnown for oneAZERTY

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