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Product comparison · 2 laptops

Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP vs Lenovo ThinkPad X41 PM 758 512MB 60GB XPP

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  • 26specifications compared
  • 12differ
  • 14identical
  • 7known for one product only

Key differences

  • Display diagonal
    • 38.1 cm (15")
    • 30.7 cm (12.1")
  • Processor frequency
    • 1.6 GHz
    • 1.5 GHz
  • Discrete graphics card model
    • AMD Mobility Radeon 7500
    • Intel® GMA 900
  • Graphics card interface
    • AGP 4X
    • PCI Express
  • Number of built-in speakers
    • 2
    • 1
  • Battery life (max)
    • 4 h
    • 5.7 h
  • Weight
    • 2.6 kg
    • 1.44 kg
  • Dimensions (WxDxH)
    • 314 x 260 x 37 mm
    • 268 x 211 x 27 mm

Side by side

Differences highlightedShow differences only
33 specifications
A

Lenovo

ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXPView product
B

Lenovo

ThinkPad X41 PM 758 512MB 60GB XPPView product
Display1 differ
Display diagonalDiffers38.1 cm (15")30.7 cm (12.1")
Display resolution1024 x 768 pixels1024 x 768 pixels
Native aspect ratio4:34:3
Contrast ratio (typical)750:1750:1
Processor1 differ
Processor manufacturerIntelIntel
Processor frequencyDiffers1.6 GHz1.5 GHz
Processor front side bus400 MHz400 MHz
Memoryidentical
Internal memory0.5 GB0.5 GB
Internal memory typeKnown for oneDDR2-SDRAM
Storageidentical
Total storage capacity60 GB60 GB
HDD speedKnown for one4200 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
Audio1 differ
Number of built-in speakersDiffers21
Network1 differ
Networking featuresDiffersEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/BluetoothEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11a/IEEE 802.11b/IEEE 802.11g/Bluetooth
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-AC adapter -Expansion bus (for X4 UltraBase Dock) -External Display -External Microphone/Line-In -Headphone/Line out -Infrared -RJ-11 -RJ-45 -2 USB 2.0 (1 IBM Powered USB 2.0 Port)
Keyboardidentical
Keyboard typeFull sizeFull size
Softwareidentical
Compatible operating systemsMicrosoft Windows XP ProfessionalMicrosoft Windows XP Professional
Bundled softwareKnown for oneAccess IBM, IBM Access Connections, IBM Rescue and Recovery, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics, Adobe Acrobat Reader
Battery1 differ
Battery life (max)Differs4 h5.7 h
Weight & dimensions2 differ
WeightDiffers2.6 kg1.44 kg
WidthKnown for one314 mm
DepthKnown for one260 mm
Dimensions (WxDxH)Differs314 x 260 x 37 mm268 x 211 x 27 mm
Hard driveidentical
Storage drive typeATA-100 (Enhanced IDE)ATA-100 (Enhanced IDE)
Other features2 differ
Security featuresDiffers-Hard disk drive password -IBM Embedded Security Subsystem 2.0 -IBM Security Slot -Power-on password -Supervisor password-IBM Security Slot -Power-on password -Supervisor password -IBM Embedded Security Subsystem 2.0 -Integrated fingerprint reader -Hard disk drive password
Battery typeDiffers6 Cell Lithium-Ion8 Cell Lithium-Ion
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Supplied AC adapter typeKnown for oneAC

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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