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Product comparison · 2 laptops

Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++) vs Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP

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  • 25specifications compared
  • 12differ
  • 13identical
  • 11known for one product only

Key differences

The Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP has 0.1 GHz more processor frequency than the Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++) (1.6 GHz vs 1.5 GHz). The Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP has 0.25 GB more internal memory than the Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++) (0.5 GB vs 0.25 GB). The Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP has 20 GB more total storage capacity than the Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++) (60 GB vs 40 GB). Graphics card interface: Direct AGP on the Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++), AGP 4X on the Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP. Compatible operating systems: Microsoft Windows XP Home Edition on the Lenovo IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++), Microsoft Windows XP Professional on the Lenovo ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXP.

  • Processor frequency
    • 1.5 GHz
    • 1.6 GHz
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Total storage capacity
    • 40 GB
    • 60 GB
  • HDD speed
    • 5400 RPM
    • 4200 RPM
  • Graphics card interface
    • Direct AGP
    • AGP 4X
  • Number of built-in speakers
    • 1
    • 2
  • Weight
    • 3 kg
    • 2.6 kg
  • Dimensions (WxDxH)
    • 332 x 269 x 38 mm
    • 314 x 260 x 37 mm

Side by side

Differences highlightedShow differences only
36 specifications
A

Lenovo

IBM THINKPAD R50E P M-1.5(715) CENT. 256/40G/15/DVDCDRW/WXP NL TS(++)View product
B

Lenovo

ThinkPad R51 PM-725 512MB 60GB 15.0 inch TFT Centrino 11b/g COMBO WXPView 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 frequencyDiffers1.5 GHz1.6 GHz
Processor front side bus400 MHz400 MHz
Memory1 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeKnown for oneDDR-SDRAM
Storage2 differ
Total storage capacityDiffers40 GB60 GB
HDD speedDiffers5400 RPM4200 RPM
Graphics1 differ
Maximum resolution2048 x 1536 pixels2048 x 1536 pixels
Graphics card interfaceDiffersDirect AGPAGP 4X
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneAMD Mobility Radeon 7500
Maximum graphics card memoryKnown for one0.032 GB
Audio1 differ
Number of built-in speakersDiffers12
Optical driveidentical
CD read speedKnown for one24x
CD write speedKnown for one24x
CD rewrite speedKnown for one24x
DVD read speedKnown for one8x
Network1 differ
Networking featuresDiffersEthernet/Fast Ethernet/IEEE 802.11b/IEEE 802.11gEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces1 differ
I/O portsDiffers-1 (EPP) -AC adapter -External microphone -External Display -Headphone/Line out -RJ-11 -RJ-45 -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 -Parallel -RJ-11 -RJ-45 -S-Video out -2 USB 2.0
Keyboardidentical
Keyboard typeFull sizeFull size
Software1 differ
Compatible operating systemsDiffersMicrosoft Windows XP Home EditionMicrosoft Windows XP Professional
Batteryidentical
Battery life (max)4 h4 h
Weight & dimensions2 differ
WeightDiffers3 kg2.6 kg
Dimensions (WxDxH)Differs332 x 269 x 38 mm314 x 260 x 37 mm
WidthKnown for one314 mm
DepthKnown for one260 mm
Hard driveidentical
Storage drive typeATA-100 (Enhanced IDE)ATA-100 (Enhanced IDE)
Other features1 differ
Security featuresDiffers-Hard disk drive password -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 typeKnown for oneAC

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