Product comparison · 2 laptops

Lenovo ThinkPad R400 (7443-24G), GE vs Lenovo ThinkPad T400 (647425G)

104specifications compared
22differ
82identical
19known for one product only

Key differences

Display resolution
- ThinkPad R400 (7443-24G), GE:1280 x 800 pixels
- ThinkPad T400 (647425G):1440 x 900 pixels
Processor model
- ThinkPad R400 (7443-24G), GE:T6570
- ThinkPad T400 (647425G):P8600
Processor frequency
- ThinkPad R400 (7443-24G), GE:2.1 GHz
- ThinkPad T400 (647425G):2.4 GHz
Processor cache
- ThinkPad R400 (7443-24G), GE:2 MB
- ThinkPad T400 (647425G):3 MB
Processor socket
- ThinkPad R400 (7443-24G), GE:Socket 478
- ThinkPad T400 (647425G):Socket 479
Processor operating modes
- ThinkPad R400 (7443-24G), GE:32-bit, 64-bit
- ThinkPad T400 (647425G):64-bit
Thermal Design Power (TDP)
- ThinkPad R400 (7443-24G), GE:35 W
- ThinkPad T400 (647425G):25 W
Tjunction
- ThinkPad R400 (7443-24G), GE:100 °C
- ThinkPad T400 (647425G):105 °C

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad R400 (7443-24G), GE, ThinkPad T400 (647425G)
123 specifications	A Lenovo ThinkPad R400 (7443-24G), GE View product	B Lenovo ThinkPad T400 (647425G)View product
Display1 differ
Display resolutionDiffers	1280 x 800 pixels	1440 x 900 pixels
LED backlightKnown for one	Unknown — not stated by the source	Yes
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Processor7 differ
Processor modelDiffers	T6570	P8600
Processor frequencyDiffers	2.1 GHz	2.4 GHz
Processor cacheDiffers	2 MB	3 MB
Processor front side busKnown for one	Unknown — not stated by the source	1066 MHz
Processor socketDiffers	Socket 478	Socket 479
Processor operating modesDiffers	32-bit, 64-bit	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core 2 Duo P8000 Series
Bus typeKnown for one	Unknown — not stated by the source	FSB
SteppingKnown for one	Unknown — not stated by the source	R1
Thermal Design Power (TDP)Differs	35 W	25 W
TjunctionDiffers	100 °C	105 °C
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	9
Storage1 differ
Total storage capacityDiffers	250 GB	160 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Intel HDA 24-bit	HDA 24-bit
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Cameraidentical
Front cameraKnown for one	Unknown — not stated by the source	No
Network2 differ
Networking featuresDiffers	WLAN, Gigabit Ethernet	Gigabit Ethernet, WLAN
Wireless technologyDiffers	Intel 5100AGN	Intel WiFi 5100AGN
Ports & interfaces2 differ
Firewire (IEEE 1394) portsDiffers	0	1
Docking connectorDiffers	No	Yes
Processor special features3 differ
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Intel Trusted Execution TechnologyDiffers	No	Yes
Processor ARK IDDiffers	42841	35568
Processor codeKnown for one	Unknown — not stated by the source	SLGDZ
Processor package sizeKnown for one	Unknown — not stated by the source	35 x 35 mm
Battery1 differ
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery life (max)Differs	5.6 h	6.6 h
Weight & dimensions4 differ
WeightDiffers	2.4 kg	2.2 kg
WidthDiffers	355.5 mm	335.5 mm
DepthDiffers	238 mm	239 mm
HeightDiffers	34.9 mm	31.9 mm
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Modem typeKnown for one	1	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	ThinkPad UltraNav	Unknown — not stated by the source

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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