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Product comparison · 2 laptops

Lenovo ThinkPad R51 PM735 256MB 40GB XPP vs Lenovo THINKPAD R52 PMC740-1.7G

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  • 33specifications compared
  • 10differ
  • 23identical
  • 2known for one product only

Key differences

The Lenovo THINKPAD R52 PMC740-1.7G has 133 MHz more processor front side bus than the Lenovo ThinkPad R51 PM735 256MB 40GB XPP (533 MHz vs 400 MHz). The Lenovo THINKPAD R52 PMC740-1.7G 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 THINKPAD R52 PMC740-1.7G has 1,200 RPM more HDD speed than the Lenovo ThinkPad R51 PM735 256MB 40GB XPP (5400 RPM vs 4200 RPM). Internal memory type: DDR-SDRAM on the Lenovo ThinkPad R51 PM735 256MB 40GB XPP, DDR2-SDRAM on the Lenovo THINKPAD R52 PMC740-1.7G. Discrete graphics card model: AMD Mobility Radeon 7500 on the Lenovo ThinkPad R51 PM735 256MB 40GB XPP, Intel® GMA 900 on the Lenovo THINKPAD R52 PMC740-1.7G.

  • Processor front side bus
    • 400 MHz
    • 533 MHz
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Internal memory type
    • DDR-SDRAM
    • DDR2-SDRAM
  • HDD speed
    • 4200 RPM
    • 5400 RPM
  • Discrete graphics card model
    • AMD Mobility Radeon 7500
    • Intel® GMA 900
  • Graphics card interface
    • AGP 4X
    • PCI Express
  • Battery life (max)
    • 4.1 h
    • 3.7 h
  • Weight
    • 2.8 kg
    • 3.01 kg

Side by side

Differences highlightedShow differences only
35 specifications
A

Lenovo

ThinkPad R51 PM735 256MB 40GB XPPView product
B

Lenovo

THINKPAD R52 PMC740-1.7GView product
Displayidentical
Display diagonal38.1 cm (15")38.1 cm (15")
Display resolution1024 x 768 pixels1024 x 768 pixels
Native aspect ratio4:34:3
Contrast ratio (typical)750:1750:1
Processor1 differ
Processor manufacturerIntelIntel
Processor frequency1.7 GHz1.7 GHz
Processor front side busDiffers400 MHz533 MHz
Memory2 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeDiffersDDR-SDRAMDDR2-SDRAM
Storage1 differ
Total storage capacity40 GB40 GB
HDD speedDiffers4200 RPM5400 RPM
Graphics2 differ
Discrete graphics cardYesYes
Discrete graphics card modelDiffersAMD Mobility Radeon 7500Intel® GMA 900
Maximum graphics card memoryKnown for one0.032 GB
Maximum resolution2048 x 1536 pixels2048 x 1536 pixels
Graphics card interfaceDiffersAGP 4XPCI Express
Audioidentical
Number of built-in speakers22
Optical driveidentical
CD read speed24x24x
CD write speed24x24x
CD rewrite speed24x24x
DVD read speed8x8x
Networkidentical
Networking featuresEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11gEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g
Ports & interfaces1 differ
I/O portsDiffers-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-AC adapter -Docking/Port Replicator -External Display -Headphone/Line out -RJ-11 -Parallel -Infrared -Microphone/line in -RJ-45 -S-Video out -2 USB 2.0
Keyboardidentical
Keyboard typeFull sizeFull size
Software1 differ
Bundled softwareDiffersAccess 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 ReaderAccess IBM, IBM Access Connections, IBM Rescue and Recovery, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics, Adobe Acrobat Reader
Compatible operating systemsMicrosoft Windows XP ProfessionalMicrosoft Windows XP Professional
Battery1 differ
Battery life (max)Differs4.1 h3.7 h
Weight & dimensions1 differ
WeightDiffers2.8 kg3.01 kg
Dimensions (WxDxH)332 x 269 x 38 mm332 x 269 x 38 mm
Other featuresidentical
Security features-Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password -Supervisor password-Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password -Supervisor password
Battery type6 Cell Lithium-Ion6 Cell Lithium-Ion
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Supplied AC adapter typeACAC
Hard driveidentical
Storage drive typeKnown for oneATA-100 (Enhanced IDE)

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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