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Product comparison · 2 laptops

Lenovo IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP US vs Lenovo ThinkPad T42, DK

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  • 27specifications compared
  • 10differ
  • 17identical
  • 12known for one product only

Key differences

  • Display resolution
    • 1024 x 768 pixels
    • 1400 x 1050 pixels
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Discrete graphics card model
    • AMD Mobility Radeon
    • AMD Mobility Radeon 9600
  • Maximum graphics card memory
    • 0.032 GB
    • 0.064 GB
  • Graphics card interface
    • AGP 4X
    • AGP 8X
  • Weight
    • 2.6 kg
    • 2.2 kg
  • Dimensions (WxDxH)
    • 314 x 260 x 33 mm
    • 311 x 255 x 27 mm

Side by side

Differences highlightedShow differences only
39 specifications
A

Lenovo

IBM THINKPAD R51 P M-1.7(735) CENT. 256/40G/14/DVD/CDRW/WXP USView product
B

Lenovo

ThinkPad T42, DKView product
Display1 differ
Display diagonal35.8 cm (14.1")35.8 cm (14.1")
Display resolutionDiffers1024 x 768 pixels1400 x 1050 pixels
Native aspect ratio4:34:3
Contrast ratio (typical)750:1750:1
Processoridentical
Processor manufacturerKnown for oneIntel
Processor frequency1.7 GHz1.7 GHz
Processor front side bus400 MHz400 MHz
Memory1 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeKnown for oneDDR-SDRAM
Storageidentical
Total storage capacity40 GB40 GB
HDD speedKnown for one5400 RPM
Optical drive typeKnown for oneDVD-ROM
Graphics3 differ
Discrete graphics cardYesYes
Discrete graphics card modelDiffersAMD Mobility RadeonAMD Mobility Radeon 9600
Maximum graphics card memoryDiffers0.032 GB0.064 GB
Maximum resolution2048 x 1536 pixels2048 x 1536 pixels
Graphics card interfaceDiffersAGP 4XAGP 8X
Audioidentical
Audio systemKnown for oneSoundMAX
Number of built-in speakers22
Optical driveidentical
CD read speed24x24x
CD write speed24x24x
CD rewrite speed24x24x
DVD read speed8x8x
Network1 differ
Networking featuresDiffersEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/BluetoothEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b
Ports & interfaces1 differ
I/O portsDiffers-AC adapter -Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) -External microphone -External Display -Headphone/Line out -Infrared -Parallel -RJ-11 -RJ-45 -S-Video out -2 USB 2.0•Parallel •RJ-11 •RJ-45 •S-Video out •2 USB 2.0 •AC adapter •Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) •External microphone •External Display •Headphone/Line out •Infrared, USB, parallel, RJ-11, RJ-45, IrDA
Softwareidentical
Bundled softwareKnown for oneAccess IBM, IBM Access Connections, IBM Drive Letter Access, IBM Record Now, IBM Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004, PC-Doctor, InterVideo WinDVD Creator, Intervideo WinDVD, Adobe Acrobat Reader
Compatible operating systemsMicrosoft Windows XP ProfessionalMicrosoft Windows XP Professional
Batteryidentical
Battery life (max)4 h4 h
Weight & dimensions2 differ
WeightDiffers2.6 kg2.2 kg
WidthKnown for one311 mm
DepthKnown for one255 mm
Dimensions (WxDxH)Differs314 x 260 x 33 mm311 x 255 x 27 mm
Hard driveidentical
Storage drive typeKnown for oneATA-100 (Enhanced IDE)
Other features1 differ
Security featuresDiffers-Supervisor password -Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password•Hard disk drive password •IBM Embedded Security Subsystem 2.0 •IBM Security Slot •Power-on password •Supervisor password
Battery typeKnown for one6 Cell Lithium-Ion
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Supplied AC adapter typeKnown for oneAC
Keyboardidentical
Keyboard typeKnown for oneFull size

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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