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 diagonal	35.8 cm (14.1")	35.8 cm (14.1")
Display resolutionDiffers	1280 x 800 pixels	1440 x 900 pixels
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratio	16:10	16:10
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Processor7 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	T6570	P8600
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.1 GHz	2.4 GHz
Processor cacheDiffers	2 MB	3 MB
Processor cache type	L2	L2
Processor front side busKnown for one	Unknown — not stated by the source	1066 MHz
Processor socketDiffers	Socket 478	Socket 479
Processor lithography	45 nm	45 nm
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
Processor codename	Penryn	Penryn
Bus typeKnown for one	Unknown — not stated by the source	FSB
FSB Parity	No	No
SteppingKnown for one	Unknown — not stated by the source	R1
Thermal Design Power (TDP)Differs	35 W	25 W
TjunctionDiffers	100 °C	105 °C
Number of Processing Die Transistors	410 M	410 M
Processing Die size	107 mm²	107 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	9
ECC supported by processor	No	No
Memoryidentical
Internal memory	2 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1066 MHz	1066 MHz
Memory layout (slots x size)	1 x 2 GB	1 x 2 GB
Maximum internal memory	4 GB	4 GB
Storage1 differ
Total storage capacityDiffers	250 GB	160 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD interface	SATA	SATA
Card reader integrated	No	No
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Graphicsidentical
Discrete graphics card	Yes	Yes
Discrete graphics card model	Intel® GMA 4500MHD	Intel® GMA 4500MHD
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
Bluetooth	No	No
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Ports & interfaces2 differ
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	0	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	No	Yes
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
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	0	0
Serial ports quantity	0	0
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Drivers included	Yes	Yes
Trial software	Microsoft Office 2007	Microsoft Office 2007
Processor special features3 differ
Intel® Wireless Display (Intel® WiDi)	No	No
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt StateDiffers	No	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Turbo Boost Technology	No	No
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
Thermal Monitoring Technologies	No	No
Conflict-Free processor	No	No
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
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Fingerprint reader	Yes	Yes
HDD user password	Yes	Yes
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
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Internal modem	Yes	Yes
Modem speed	56 Kbit/s	56 Kbit/s
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Supplied AC adapter type	AC	AC
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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