Product comparison · 2 laptops

Lenovo ThinkPad T42 PM 1700 512B 40GB CD-RW DVD vs Lenovo TS THINKPAD R51 PMC725-1.6G

25specifications compared
9differ
16identical
42known for one product only

Key differences

Display diagonal
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:35.8 cm (14.1")
- TS THINKPAD R51 PMC725-1.6G:38.1 cm (15")
Processor frequency
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:1.7 GHz
- TS THINKPAD R51 PMC725-1.6G:1.6 GHz
Internal memory
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:0.5 GB
- TS THINKPAD R51 PMC725-1.6G:0.25 GB
Graphics card interface
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:AGP 4X
- TS THINKPAD R51 PMC725-1.6G:Direct AGP
Battery life (max)
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:4.5 h
- TS THINKPAD R51 PMC725-1.6G:4 h
Dimensions (WxDxH)
- ThinkPad T42 PM 1700 512B 40GB CD-RW DVD:311 x 255 x 27 mm
- TS THINKPAD R51 PMC725-1.6G:332 x 269 x 37 mm

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad T42 PM 1700 512B 40GB CD-RW DVD, TS THINKPAD R51 PMC725-1.6G
67 specifications	A Lenovo ThinkPad T42 PM 1700 512B 40GB CD-RW DVD View product	B Lenovo TS THINKPAD R51 PMC725-1.6G View product
Display1 differ
Display diagonalDiffers	35.8 cm (14.1")	38.1 cm (15")
Contrast ratio (typical)Known for one	Unknown — not stated by the source	750:1
Processor1 differ
Processor frequencyDiffers	1.7 GHz	1.6 GHz
Memory1 differ
Internal memoryDiffers	0.5 GB	0.25 GB
Internal memory typeKnown for one	DDR-SDRAM	Unknown — not stated by the source
Maximum internal memoryKnown for one	2 GB	Unknown — not stated by the source
Storageidentical
Optical drive typeKnown for one	DVD-ROM	Unknown — not stated by the source
Graphics1 differ
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Mobility Radeon 7500	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	0.032 GB	Unknown — not stated by the source
Graphics card interfaceDiffers	AGP 4X	Direct AGP
Audioidentical
Audio systemKnown for one	SoundMAX	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b	Ethernet/Fast Ethernet/Gigabit Ethernet/IEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces1 differ
USB 2.0 ports quantityKnown for one	2	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
S/PDIF out portKnown for one	No	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
Docking connectorKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
TV-in portKnown for one	No	Unknown — not stated by the source
TV-outKnown for one	Yes	Unknown — not stated by the source
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
I/O portsDiffers	-Expansion Bus port (for Dock II/Mini Dock or Port Replicator II)	•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 quantityKnown for one	0	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	ThinkPad UltraNav	Unknown — not stated by the source
Softwareidentical
Operating system installedKnown for one	Windows XP Professional	Unknown — not stated by the source
Bundled softwareKnown for one	Access Program, Drive Letter Access, Record Now, ThinkVantage Access Connections, ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004, PC-Doctor, InterVideo WinDVD Creator, Intervideo WinDVD, Adobe Acrobat Reader	Unknown — not stated by the source
Compatible operating systemsKnown for one	Unknown — not stated by the source	Microsoft Windows XP Professional
Battery1 differ
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Battery life (max)Differs	4.5 h	4 h
Poweridentical
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions1 differ
WeightKnown for one	2.2 kg	Unknown — not stated by the source
Dimensions (WxDxH)Differs	311 x 255 x 27 mm	332 x 269 x 37 mm
WidthKnown for one	Unknown — not stated by the source	332 mm
DepthKnown for one	Unknown — not stated by the source	269 mm
Other features1 differ
Security featuresDiffers	-Supervisor password -Hard disk drive password -Power-on password -Security Slot	•IBM Embedded Security Subsystem 2.0 •IBM Security Slot •Power-on password •Supervisor password •Hard disk drive password
Infrared data portKnown for one	Yes	Unknown — not stated by the source
Wake-on-LAN readyKnown for one	No	Unknown — not stated by the source
Wake-on-Ring readyKnown for one	No	Unknown — not stated by the source
Modem typeKnown for one	56K V.92	Unknown — not stated by the source
Battery typeKnown for one	Unknown — not stated by the source	6 cell Li-Ion battery pack

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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