Product comparison · 2 laptops

Lenovo ThinkPad X31 vs Lenovo ThinkPad X40

49specifications compared
12differ
37identical
14known for one product only

Key differences

Processor frequency
- ThinkPad X31:1.6 GHz
- ThinkPad X40:1.4 GHz
Internal memory
- ThinkPad X31:0.25 GB
- ThinkPad X40:0.5 GB
Maximum graphics card memory
- ThinkPad X31:0.016 GB
- ThinkPad X40:0.064 GB
Firewire (IEEE 1394) ports
- ThinkPad X31:1
- ThinkPad X40:0
Docking connector
- ThinkPad X31:Yes
- ThinkPad X40:No
SmartCard slot
- ThinkPad X31:No
- ThinkPad X40:Yes
Parallel ports quantity
- ThinkPad X31:1
- ThinkPad X40:0
Number of battery cells
- ThinkPad X31:6
- ThinkPad X40:4

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad X31, ThinkPad X40
63 specifications	A Lenovo ThinkPad X31 View product	B Lenovo ThinkPad X40 View product
Displayidentical
Display diagonal	30.7 cm (12.1")	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 frequencyDiffers	1.6 GHz	1.4 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	DDR-SDRAM	DDR-SDRAM
Maximum internal memoryKnown for one	2 GB	Unknown — not stated by the source
Storageidentical
Total storage capacity	40 GB	40 GB
HDD interface	Ultra-ATA/100	Ultra-ATA/100
HDD speed	4200 RPM	4200 RPM
Optical drive type	No	No
Compatible memory cardsKnown for one	Unknown — not stated by the source	SD
Graphics1 differ
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Mobility Radeon 7000	Unknown — not stated by the source
Maximum graphics card memoryDiffers	0.016 GB	0.064 GB
Graphics card interfaceKnown for one	Unknown — not stated by the source	Direct AGP
Audioidentical
Audio system	SoundMAX	SoundMAX
Number of built-in speakers	1	1
Cameraidentical
Front camera	No	No
Networkidentical
Networking features	Ethernet/Fast Ethernet/Gigabit Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
BluetoothKnown for one	No	Unknown — not stated by the source
Wireless technologyKnown for one	Unknown — not stated by the source	IEEE 802.11b/IEEE 802.11g/Bluetooth
Ports & interfaces4 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) portsDiffers	1	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	Yes	No
CardBus PCMCIA slots quantity	1	1
CardBus PCMCIA slot type	Type II	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 number of keysKnown for one	Unknown — not stated by the source	85
Software1 differ
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareDiffers	Access Program, Rapid Restore Ultra, ThinkVantage Access Connections, Norton AntiVirus 2003 OEM Version, PC-Doctor, Adobe Acrobat Reader	Access Program, Drive Letter Access, Record Now, ThinkVantage Access Connections, ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2003 OEM Version, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics, Intervideo WinDVD, Adobe Acrobat Reader
Battery2 differ
Number of battery cellsDiffers	6	4
Battery life (max)Differs	5.5 h	3.5 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Weight & dimensions2 differ
WeightDiffers	1.64 kg	1.24 kg
WidthKnown for one	273 mm	Unknown — not stated by the source
DepthKnown for one	223 mm	Unknown — not stated by the source
HeightKnown for one	30 mm	Unknown — not stated by the source
Dimensions (WxDxH)Differs	273 x 223 x 30 mm	268 x 211 x 27 mm
Other featuresidentical
Infrared data port	Yes	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

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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