Product comparison · 2 laptops

Lenovo ThinkPad R51e vs Lenovo ThinkPad X41 Intel Pentium M Low Voltage 778

51specifications compared
18differ
33identical
18known for one product only

Key differences

Display diagonal
- ThinkPad R51e:38.1 cm (15")
- ThinkPad X41 Intel Pentium M Low Voltage 778:30.7 cm (12.1")
Processor frequency
- ThinkPad R51e:1.5 GHz
- ThinkPad X41 Intel Pentium M Low Voltage 778:1.6 GHz
Internal memory
- ThinkPad R51e:0.25 GB
- ThinkPad X41 Intel Pentium M Low Voltage 778:0.5 GB
HDD interface
- ThinkPad R51e:EIDE/ATA
- ThinkPad X41 Intel Pentium M Low Voltage 778:Ultra-ATA/100
HDD speed
- ThinkPad R51e:5400 RPM
- ThinkPad X41 Intel Pentium M Low Voltage 778:4200 RPM
Optical drive type
- ThinkPad R51e:DVD-ROM
- ThinkPad X41 Intel Pentium M Low Voltage 778:No
Discrete graphics card model
- ThinkPad R51e:AMD Radeon Xpress 200M
- ThinkPad X41 Intel Pentium M Low Voltage 778:Intel® GMA 900
Maximum graphics card memory
- ThinkPad R51e:0.064 GB
- ThinkPad X41 Intel Pentium M Low Voltage 778:0.128 GB

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R51e, ThinkPad X41 Intel Pentium M Low Voltage 778
69 specifications	A Lenovo ThinkPad R51e View product	B Lenovo ThinkPad X41 Intel Pentium M Low Voltage 778 View product
Display1 differ
Display diagonalDiffers	38.1 cm (15")	30.7 cm (12.1")
Display resolution	1024 x 768 pixels	1024 x 768 pixels
Native aspect ratio	4:3	4:3
Processor1 differ
Processor manufacturerKnown for one	Intel	Unknown — not stated by the source
Processor familyKnown for one	Intel® Celeron® M	Unknown — not stated by the source
Processor frequencyDiffers	1.5 GHz	1.6 GHz
Processor cacheKnown for one	1 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L2	Unknown — not stated by the source
Processor front side bus	400 MHz	400 MHz
Memory1 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Maximum internal memoryKnown for one	2 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacity	40 GB	40 GB
HDD interfaceDiffers	EIDE/ATA	Ultra-ATA/100
HDD speedDiffers	5400 RPM	4200 RPM
Optical drive typeDiffers	DVD-ROM	No
Compatible memory cardsKnown for one	Unknown — not stated by the source	SD
Graphics2 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Radeon Xpress 200M	Intel® GMA 900
Maximum graphics card memoryDiffers	0.064 GB	0.128 GB
Graphics card interfaceKnown for one	Unknown — not stated by the source	PCI Express
Audioidentical
Audio system	SoundMAX	SoundMAX
Number of built-in speakers	1	1
Cameraidentical
Front camera	No	No
Optical driveidentical
CD read speedKnown for one	24x	Unknown — not stated by the source
CD write speedKnown for one	24x	Unknown — not stated by the source
CD rewrite speedKnown for one	24x	Unknown — not stated by the source
DVD read speedKnown for one	8x	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Wireless technology	IEEE 802.11b/IEEE 802.11g	IEEE 802.11b/IEEE 802.11g
Ports & interfaces3 differ
USB 2.0 ports quantity	2	2
Ethernet LAN (RJ-45) ports	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
CardBus PCMCIA slots quantity	1	1
CardBus PCMCIA slot typeDiffers	Type III	Type II
SmartCard slotDiffers	No	Yes
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-out	No	No
PS/2 ports quantity	0	0
Parallel ports quantityDiffers	1	0
Serial ports quantity	0	0
USB 1.1 ports quantity	0	0
Keyboardidentical
Pointing device	Trackpad	Trackpad
Keyboard typeKnown for one	Unknown — not stated by the source	Full size
Software1 differ
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareDiffers	Drive 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 Reader	Access program, ThinkVantage Access Connections, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue and Recovery, Adobe Acrobat Reader
Battery2 differ
Number of battery cellsDiffers	6	4
Battery life (max)Differs	4 h	2.5 h
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Weight & dimensions2 differ
WeightDiffers	2.8 kg	1.24 kg
WidthKnown for one	332 mm	Unknown — not stated by the source
DepthKnown for one	269 mm	Unknown — not stated by the source
HeightKnown for one	37 mm	Unknown — not stated by the source
Dimensions (WxDxH)Differs	332 x 269 x 37 mm	268 x 211 x 21 mm
Other features1 differ
Infrared data portDiffers	No	Yes
Internal modem	Yes	Yes
Modem speed	56 Kbit/s	56 Kbit/s
Modem typeKnown for one	V.92	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
Supported protocolsKnown for one	Unknown — not stated by the source	-Embedded Security Subsystem 2.0 -Hard disk drive password -Integrated fingerprint reader -Power-on password -Supervisor password
Poweridentical
DC-in jackKnown for one	Unknown — not stated by the source	Yes

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.

More laptop comparisons

All laptop comparisons