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Product comparison · 2 laptops

Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US vs Lenovo ThinkPad R51 PM735 256MB 40GB XPP

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  • 32specifications compared
  • 10differ
  • 22identical
  • 5known for one product only

Key differences

The Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US has 0.25 GB more internal memory than the Lenovo ThinkPad R51 PM735 256MB 40GB XPP (0.5 GB vs 0.25 GB). The Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US has 1,200 RPM more HDD speed than the Lenovo ThinkPad R51 PM735 256MB 40GB XPP (5400 RPM vs 4200 RPM). The Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US has 1 h more battery life (max) than the Lenovo ThinkPad R51 PM735 256MB 40GB XPP (5.1 h vs 4.1 h). Display diagonal: 35.8 cm (14.1") on the Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US, 38.1 cm (15") on the Lenovo ThinkPad R51 PM735 256MB 40GB XPP. Dimensions (WxDxH): 311 x 255 x 27 mm on the Lenovo IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP US, 332 x 269 x 38 mm on the Lenovo ThinkPad R51 PM735 256MB 40GB XPP.

  • Display diagonal
    • 35.8 cm (14.1")
    • 38.1 cm (15")
  • Internal memory
    • 0.5 GB
    • 0.25 GB
  • HDD speed
    • 5400 RPM
    • 4200 RPM
  • Battery life (max)
    • 5.1 h
    • 4.1 h
  • Weight
    • 2 kg
    • 2.8 kg
  • Dimensions (WxDxH)
    • 311 x 255 x 27 mm
    • 332 x 269 x 38 mm

Side by side

Differences highlightedShow differences only
37 specifications
A

Lenovo

IBM THINKPAD T42 P M-1.7(735) CENT. 512/40G/14/DVD/CDRW/WXP USView product
B

Lenovo

ThinkPad R51 PM735 256MB 40GB XPPView product
Display1 differ
Display diagonalDiffers35.8 cm (14.1")38.1 cm (15")
Contrast ratio (typical)Known for one750:1
Memory1 differ
Internal memoryDiffers0.5 GB0.25 GB
Internal memory typeKnown for oneDDR-SDRAM
Storage1 differ
HDD speedDiffers5400 RPM4200 RPM
Optical drive typeKnown for oneDVD-ROM
Audioidentical
Audio systemKnown for onestereo
Network1 differ
Networking featuresDiffersEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/BluetoothEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g
Ports & interfaces1 differ
I/O portsDiffers-Infrared -Parallel -Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) -External microphone -External Display -Headphone/Line out -AC adapter -RJ-11 -RJ-45 -S-Video out -2 USB 2.0-Headphone/Line out -Infrared -Parallel -RJ-11 -RJ-45 -S-Video out -2 USB 2.0 -External Display -AC adapter -Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) -External microphone
Software1 differ
Bundled softwareDiffersAccess IBM, IBM Access Connections, IBM Client Security Software (web-downloadable), IBM Drive Letter Access by Sonic, IBM Record Now, IBM Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC-Doctor, IBM fingerprint software, InterVideo WinDVD CAccess IBM, IBM Access Connections, IBM Drive Letter Access, IBM Record Now, IBM Rescue and Recovery with Rapid Restore, ThinkPad Configuration Utility, Norton AntiVirus 2004, PC Doctor diagnostics, Adobe Acrobat Reader
Battery1 differ
Battery life (max)Differs5.1 h4.1 h
Weight & dimensions2 differ
WeightDiffers2 kg2.8 kg
Dimensions (WxDxH)Differs311 x 255 x 27 mm332 x 269 x 38 mm
Hard driveidentical
Storage drive typeKnown for oneATA-100 (Enhanced IDE)
Other features1 differ
Security featuresDiffers-IBM Security Slot -Power-on password -Supervisor password -Hard disk drive password -Integrated fingerprint reader -IBM Embedded Security Subsystem 2.0-Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password -Supervisor password

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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