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Product comparison · 2 laptops

Lenovo TS THINKPAD R51 PMC725-1.6G vs Lenovo TS ThinkPad X41 PM 758 LV 1.5GHz

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  • 17specifications compared
  • 8differ
  • 9identical
  • 47known 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
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Graphics card interface
    • Direct AGP
    • PCI Express
  • Battery life (max)
    • 4 h
    • 2.5 h
  • Dimensions (WxDxH)
    • 332 x 269 x 37 mm
    • 268 x 211 x 21 mm

Side by side

Differences highlightedShow differences only
64 specifications
A

Lenovo

TS THINKPAD R51 PMC725-1.6GView product
B

Lenovo

TS ThinkPad X41 PM 758 LV 1.5GHzView 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)Known for one750:1
Processor1 differ
Processor manufacturerIntelIntel
Processor frequencyDiffers1.6 GHz1.5 GHz
Processor front side bus400 MHz400 MHz
Memory1 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeKnown for oneDDR2-SDRAM
Storageidentical
Total storage capacity40 GB40 GB
Optical drive typeKnown for oneNo
Compatible memory cardsKnown for oneSD
Graphics1 differ
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneIntel® GMA 900
Maximum graphics card memoryKnown for one0.128 GB
Graphics card interfaceDiffersDirect AGPPCI Express
Maximum resolutionKnown for one2048 x 1536 pixels
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 & interfacesidentical
USB 2.0 ports quantityKnown for one1
Ethernet LAN (RJ-45) portsKnown for one1
DVI portKnown for oneNo
VGA (D-Sub) ports quantityKnown for one1
Firewire (IEEE 1394) portsKnown for one0
Headphone outputsKnown for one1
S/PDIF out portKnown for oneNo
Microphone inKnown for oneYes
Docking connectorKnown for oneNo
CardBus PCMCIA slots quantityKnown for one1
CardBus PCMCIA slot typeKnown for oneType II
SmartCard slotKnown for oneYes
Modem (RJ-11) portsKnown for one1
TV-in portKnown for oneNo
TV-outKnown for oneNo
PS/2 ports quantityKnown for one0
Parallel ports quantityKnown for one0
Serial ports quantityKnown for one0
USB 1.1 ports quantityKnown for one0
I/O portsKnown for one•S-Video out •2 USB 2.0 •RJ-45 •Parallel •RJ-11 •Headphone/Line out •Infrared •IEEE 1394 •Line in •AC adapter •Expansion Bus port (for Dock II/Mini Dock or Port Replicator II) •External microphone •External Display, USB, parallel, RJ-11, RJ-45, FIR, IEEE 1394
Keyboardidentical
Pointing deviceKnown for oneTrackpad
Keyboard typeKnown for oneFull size
Softwareidentical
Operating system installedKnown for oneWindows XP Professional
Bundled softwareKnown for oneAccess Connections; Access Program; Rescue and Recovery, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics, Adobe Acrobat Reader
Compatible operating systemsKnown for oneMicrosoft Windows XP Professional
Battery1 differ
Number of battery cellsKnown for one4
Battery life (max)Differs4 h2.5 h
Poweridentical
DC-in jackKnown for oneYes
Weight & dimensions1 differ
WeightKnown for one1.29 kg
Dimensions (WxDxH)Differs332 x 269 x 37 mm268 x 211 x 21 mm
WidthKnown for one332 mm
DepthKnown for one269 mm
Hard driveidentical
Storage drive typeATA-100 (Enhanced IDE)ATA-100 (Enhanced IDE)
Other features1 differ
Security featuresDiffers•IBM Embedded Security Subsystem 2.0 •IBM Security Slot •Power-on password •Supervisor password •Hard disk drive password-Hard disk drive password -Integrated fingerprint reader -Power-on password -Supervisor password -Security lock slot
Infrared data portKnown for oneYes
Wake-on-LAN readyKnown for oneNo
Wake-on-Ring readyKnown for oneNo
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Supplied AC adapter typeACAC
Battery typeKnown for one6 cell Li-Ion battery pack
Audioidentical
Number of built-in speakersKnown for one2
Optical driveidentical
CD read speedKnown for one24x
CD write speedKnown for one24x
CD rewrite speedKnown for one24x
DVD read speedKnown for one8x

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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