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Product comparison · 2 laptops

Lenovo ThinkPad R51e vs Lenovo ThinkPad T43 PM 750 1.86GHz

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  • 50specifications compared
  • 21differ
  • 29identical
  • 18known for one product only

Key differences

  • Processor frequency
    • 1.5 GHz
    • 1.86 GHz
  • Processor front side bus
    • 400 MHz
    • 533 MHz
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Total storage capacity
    • 40 GB
    • 80 GB
  • HDD interface
    • EIDE/ATA
    • Ultra-ATA/100
  • Optical drive type
    • DVD-ROM
    • DVD-RW
  • Discrete graphics card model
    • AMD Radeon Xpress 200M
    • Intel® GMA 900
  • Maximum graphics card memory
    • 0.064 GB
    • 0.128 GB

Side by side

Differences highlightedShow differences only
68 specifications
A

Lenovo

ThinkPad R51eView product
B

Lenovo

ThinkPad T43 PM 750 1.86GHzView product
Displayidentical
Display diagonal38.1 cm (15")38.1 cm (15")
Display resolution1024 x 768 pixels1024 x 768 pixels
Native aspect ratio4:34:3
Processor2 differ
Processor manufacturerKnown for oneIntel
Processor familyKnown for oneIntel® Celeron® M
Processor frequencyDiffers1.5 GHz1.86 GHz
Processor cacheKnown for one1 MB
Processor cache typeKnown for oneL2
Processor front side busDiffers400 MHz533 MHz
Memory1 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
Maximum internal memory2 GB2 GB
Storage3 differ
Total storage capacityDiffers40 GB80 GB
HDD interfaceDiffersEIDE/ATAUltra-ATA/100
HDD speedKnown for one5400 RPM
Optical drive typeDiffersDVD-ROMDVD-RW
Graphics2 differ
Discrete graphics cardYesYes
Discrete graphics card modelDiffersAMD Radeon Xpress 200MIntel® GMA 900
Maximum graphics card memoryDiffers0.064 GB0.128 GB
Graphics card interfaceKnown for onePCI Express
Audio1 differ
Audio systemSoundMAXSoundMAX
Number of built-in speakersDiffers12
Cameraidentical
Front cameraKnown for oneNo
Optical driveidentical
CD read speedKnown for one24x
CD write speedKnown for one24x
CD rewrite speedKnown for one24x
DVD read speedKnown for one8x
Network2 differ
Networking featuresDiffersEthernet/Fast EthernetEthernet/Fast Ethernet/Gigabit Ethernet
Wireless technologyDiffersIEEE 802.11b/IEEE 802.11gIEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces3 differ
USB 2.0 ports quantity22
Ethernet LAN (RJ-45) ports11
DVI portNoNo
VGA (D-Sub) ports quantity11
Firewire (IEEE 1394) ports00
Headphone outputs11
S/PDIF out portNoNo
Microphone inYesYes
Docking connectorNoNo
CardBus PCMCIA slots quantityDiffers12
CardBus PCMCIA slot typeDiffersType IIIType II
SmartCard slotNoNo
Modem (RJ-11) ports11
TV-in portNoNo
TV-outDiffersNoYes
PS/2 ports quantity00
Parallel ports quantity11
Serial ports quantity00
USB 1.1 ports quantity00
TV-out typeKnown for oneS-Video
I/O portsKnown for one1 x Docking/Port Replicator
Keyboard1 differ
Pointing deviceDiffersTrackpadThinkPad UltraNav
Software1 differ
Operating system installedWindows XP ProfessionalWindows XP Professional
Bundled softwareDiffersDrive Letter Access (DLA), PC-Doctor Windows, Symantec Client Security 3.0 (with 90 days of virus definitions), ThinkPad Configuration Utility, ThinkVantage Client Security Software, ThinkVantage Productivity Center, ThinkVantage Rescue and Recovery, Adobe Acrobat ReaderAccess program, ThinkVantage Access Connections, ThinkVantage Client Security Software, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC-Doctor, ThinkVantage Rescue and Recovery with Rapid Restore, Adobe Acrobat Reader
Battery1 differ
Number of battery cells66
Battery life (max)Differs4 h3.8 h
Security1 differ
Cable lock slotYesYes
Cable lock slot typeDiffersIBMKensington
Weight & dimensions2 differ
WeightDiffers2.8 kg2.5 kg
WidthKnown for one332 mm
DepthKnown for one269 mm
HeightKnown for one37 mm
Dimensions (WxDxH)Differs332 x 269 x 37 mm329 x 267 x 30 mm
Other features1 differ
Infrared data portDiffersNoYes
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Modem typeKnown for oneV.92
Supplied AC adapter typeACAC
Poweridentical
DC-in jackKnown for oneYes

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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