Product comparison · 2 laptops

Lenovo ThinkPad T400 (276552G), HU vs Lenovo ThinkPad T400 (647447G), HU

120specifications compared
14differ
106identical
3known for one product only

Key differences

The Lenovo ThinkPad T400 (276552G), HU has 0.13 GHz more processor frequency than the Lenovo ThinkPad T400 (647447G), HU (2.53 GHz vs 2.4 GHz). The Lenovo ThinkPad T400 (276552G), HU has 0.5 more CPU multiplier (bus/core ratio) than the Lenovo ThinkPad T400 (647447G), HU (9.5 vs 9). The Lenovo ThinkPad T400 (647447G), HU has 1 GB more internal memory than the Lenovo ThinkPad T400 (276552G), HU (3 GB vs 2 GB). Display resolution: 1440 x 900 pixels on the Lenovo ThinkPad T400 (276552G), HU, 1280 x 800 pixels on the Lenovo ThinkPad T400 (647447G), HU. Processor model: P8700 on the Lenovo ThinkPad T400 (276552G), HU, P8600 on the Lenovo ThinkPad T400 (647447G), HU.

Display resolution
- ThinkPad T400 (276552G), HU:1440 x 900 pixels
- ThinkPad T400 (647447G), HU:1280 x 800 pixels
Processor model
- ThinkPad T400 (276552G), HU:P8700
- ThinkPad T400 (647447G), HU:P8600
Processor frequency
- ThinkPad T400 (276552G), HU:2.53 GHz
- ThinkPad T400 (647447G), HU:2.4 GHz
Stepping
- ThinkPad T400 (276552G), HU:R0
- ThinkPad T400 (647447G), HU:R1
CPU multiplier (bus/core ratio)
- ThinkPad T400 (276552G), HU:9.5
- ThinkPad T400 (647447G), HU:9
Internal memory
- ThinkPad T400 (276552G), HU:2 GB
- ThinkPad T400 (647447G), HU:3 GB
Memory layout (slots x size)
- ThinkPad T400 (276552G), HU:1 x 2 GB
- ThinkPad T400 (647447G), HU:1 x 1 + 1 x 2 GB
Total storage capacity
- ThinkPad T400 (276552G), HU:320 GB
- ThinkPad T400 (647447G), HU:160 GB

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad T400 (276552G), HU, ThinkPad T400 (647447G), HU
123 specifications	A Lenovo ThinkPad T400 (276552G), HU View product	B Lenovo ThinkPad T400 (647447G), HU View product
Display1 differ
Display diagonal	35.8 cm (14.1")	35.8 cm (14.1")
Display resolutionDiffers	1440 x 900 pixels	1280 x 800 pixels
Native aspect ratio	16:10	16:10
Display surface	Gloss	Gloss
Processor4 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	P8700	P8600
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.53 GHz	2.4 GHz
Processor cache	3 MB	3 MB
Processor cache type	L2	L2
Processor front side bus	1066 MHz	1066 MHz
Processor socket	Socket 479	Socket 479
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core 2 Duo P8000 Series	Intel Core 2 Duo P8000 Series
Processor codename	Penryn	Penryn
Bus type	FSB	FSB
FSB Parity	No	No
SteppingDiffers	R0	R1
Thermal Design Power (TDP)	25 W	25 W
Tjunction	105 °C	105 °C
Number of Processing Die Transistors	410 M	410 M
Processing Die size	107 mm²	107 mm²
CPU multiplier (bus/core ratio)Differs	9.5	9
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	2 GB	3 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1066 MHz	1066 MHz
Memory layout (slots x size)Differs	1 x 2 GB	1 x 1 + 1 x 2 GB
Maximum internal memory	4 GB	4 GB
Storage1 differ
Total storage capacityDiffers	320 GB	160 GB
Number of HDDs installed	1	1
HDD interface	SATA	SATA
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Card reader integrated	No	No
Graphics1 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Mobility Radeon HD 3470	Intel® GMA 4500MHD
Maximum graphics card memoryKnown for one	0.256 GB	Unknown — not stated by the source
Audioidentical
Audio system	HDA 24-bit	HDA 24-bit
Number of built-in speakers	2	2
Speaker power	2 W	2 W
Cameraidentical
Front camera	No	No
Networkidentical
Networking features	Gigabit Ethernet, WLAN	Gigabit Ethernet, WLAN
Wireless technology	Intel WiFi 5300AGN	Intel WiFi 5300AGN
Bluetooth	Yes	Yes
Bluetooth version	2.0+EDR	2.0+EDR
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Ports & interfacesidentical
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) ports	1	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	Yes	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
Keyboardidentical
Keyboard layout	QWERTY	QWERTY
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Drivers included	Yes	Yes
Trial softwareKnown for one	Unknown — not stated by the source	Microsoft Office 2007
Processor special features2 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 States	Yes	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 State	Yes	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 Technology	Yes	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	37006	35568
Processor codeDiffers	SLGFE	SLGDZ
Processor package size	35 x 35 mm	35 x 35 mm
Thermal Monitoring Technologies	No	No
Conflict-Free processor	No	No
Batteryidentical
Number of battery cells	6	6
Battery life (max)	6.3 h	6.3 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 & dimensions3 differ
WeightDiffers	2.38 kg	2.2 kg
WidthDiffers	335 mm	335.5 mm
DepthDiffers	238 mm	239 mm
Height	31.9 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 tagging	Home office, Small Business	Home office, Small Business
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.

More laptop comparisons

All laptop comparisons