Product comparison · 2 laptops

Lenovo ThinkPad R51e vs Lenovo ThinkPad R51e Celeron M 370

58specifications compared
2differ
56identical
11known for one product only

Key differences

Discrete graphics card model
- ThinkPad R51e:AMD Radeon Xpress 200M
- ThinkPad R51e Celeron M 370:AMD Mobility Radeon X200
CardBus PCMCIA slot type
- ThinkPad R51e:Type III
- ThinkPad R51e Celeron M 370:Type II

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R51e, ThinkPad R51e Celeron M 370
69 specifications	A Lenovo ThinkPad R51e View product	B Lenovo ThinkPad R51e Celeron M 370 View product
Displayidentical
Display diagonal	38.1 cm (15")	38.1 cm (15")
Display resolution	1024 x 768 pixels	1024 x 768 pixels
Native aspect ratio	4:3	4:3
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Celeron® M	Intel® Celeron® M
Processor frequency	1.5 GHz	1.5 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
Memoryidentical
Internal memory	0.25 GB	0.25 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Maximum internal memory	2 GB	2 GB
Storageidentical
Total storage capacity	40 GB	40 GB
HDD interfaceKnown for one	EIDE/ATA	Unknown — not stated by the source
HDD speed	5400 RPM	5400 RPM
Optical drive typeKnown for one	DVD-ROM	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Radeon Xpress 200M	AMD Mobility Radeon X200
Maximum graphics card memory	0.064 GB	0.064 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 speed	24x	24x
CD write speed	24x	24x
CD rewrite speed	24x	24x
DVD read speed	8x	8x
Networkidentical
Networking features	Ethernet/Fast Ethernet	Ethernet/Fast Ethernet
Wireless technologyKnown for one	IEEE 802.11b/IEEE 802.11g	Unknown — not stated by the source
Ports & interfaces1 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 slot	No	No
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-out	No	No
PS/2 ports quantity	0	0
Parallel ports quantity	1	1
Serial ports quantity	0	0
USB 1.1 ports quantity	0	0
Keyboardidentical
Pointing device	Trackpad	Trackpad
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled software	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	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
Batteryidentical
Number of battery cells	6	6
Battery life (max)	4 h	4 h
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Weight & dimensionsidentical
Weight	2.8 kg	2.8 kg
Width	332 mm	332 mm
Depth	269 mm	269 mm
Height	37 mm	37 mm
Dimensions (WxDxH)	332 x 269 x 37 mm	332 x 269 x 37 mm
Other featuresidentical
Infrared data port	No	No
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
Wake-on-LAN readyKnown for one	Unknown — not stated by the source	No
Wake-on-Ring readyKnown for one	Unknown — not stated by the source	No
Poweridentical
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Hard driveidentical
Storage drive typeKnown for one	Unknown — not stated by the source	PATA

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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