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Product comparison · 2 laptops

Lenovo ThinkPad R51 PM 735 512MB 40GB WXP BE vs Lenovo TS ThinkPad R51 Pentium M 725 1.6Ghz

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  • 58specifications compared
  • 11differ
  • 47identical
  • 7known for one product only

Key differences

  • Display diagonal
    • 35.8 cm (14.1")
    • 38.1 cm (15")
  • Processor frequency
    • 1.7 GHz
    • 1.6 GHz
  • Internal memory
    • 0.5 GB
    • 0.25 GB
  • HDD speed
    • 4200 RPM
    • 5400 RPM
  • VGA (D-Sub) ports quantity
    • 0
    • 1
  • Width
    • 314 mm
    • 332 mm
  • Depth
    • 260 mm
    • 269 mm
  • Height
    • 34 mm
    • 37 mm

Side by side

Differences highlightedShow differences only
65 specifications
A

Lenovo

ThinkPad R51 PM 735 512MB 40GB WXP BEView product
B

Lenovo

TS ThinkPad R51 Pentium M 725 1.6GhzView product
Display1 differ
Display diagonalDiffers35.8 cm (14.1")38.1 cm (15")
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 frequencyDiffers1.7 GHz1.6 GHz
Processor front side bus400 MHz400 MHz
Memory1 differ
Internal memoryDiffers0.5 GB0.25 GB
Internal memory typeDDR-SDRAMDDR-SDRAM
Storage1 differ
Total storage capacity40 GB40 GB
HDD speedDiffers4200 RPM5400 RPM
Graphicsidentical
Maximum graphics card memory0.064 GB0.064 GB
Maximum resolution2048 x 1536 pixels2048 x 1536 pixels
Graphics card interfaceDirect AGPDirect AGP
Audioidentical
Number of built-in speakers22
Cameraidentical
Front cameraNoNo
Optical driveidentical
CD read speed24x24x
CD write speed24x24x
CD rewrite speed24x24x
DVD read speed8x8x
Network1 differ
Networking featuresDiffersEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11gEthernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces1 differ
USB 2.0 ports quantity22
Ethernet LAN (RJ-45) ports11
DVI portNoNo
VGA (D-Sub) ports quantityDiffers01
Firewire (IEEE 1394) ports11
Headphone outputs11
S/PDIF out portNoNo
Microphone inYesYes
CardBus PCMCIA slots quantity00
CardBus PCMCIA slot typeNoNo
SmartCard slotNoNo
Modem (RJ-11) ports11
TV-in portNoNo
TV-outYesYes
TV-out typeS-VideoS-Video
PS/2 ports quantity00
Parallel ports quantity11
Serial ports quantity00
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
USB 1.1 ports quantity00
Docking connectorKnown for oneYes
Keyboardidentical
Pointing deviceThinkPad UltraNavThinkPad UltraNav
Keyboard typeFull sizeFull size
Softwareidentical
Operating system installedWindows XP ProfessionalWindows XP Professional
Batteryidentical
Number of battery cells66
Battery life (max)4 h4 h
Poweridentical
DC-in jackYesYes
Securityidentical
Cable lock slotYesYes
Cable lock slot typeIBMIBM
Weight & dimensions4 differ
Weight2.7 kg2.7 kg
WidthDiffers314 mm332 mm
DepthDiffers260 mm269 mm
HeightDiffers34 mm37 mm
Dimensions (WxDxH)Differs314 x 260 x 34 mm332 x 269 x 37 mm
Hard driveidentical
Storage drive typeATA-100 (Enhanced IDE)ATA-100 (Enhanced IDE)
Other features1 differ
Security featuresKnown for one•IBM Embedded Security Subsystem 2.0 •IBM Security Slot •Power-on password •Supervisor password •Hard disk drive password
Infrared data portYesYes
Battery typeKnown for one6 cell Li-Ion battery pack
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Modem typeDiffers56K V.92V.92
Supplied AC adapter typeACAC
Wake-on-LAN readyKnown for oneNo
Wake-on-Ring readyKnown for oneNo

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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