Product comparison · 2 laptops

Lenovo SL400 2743 vs Lenovo ThinkPad T400 (6474-44G)

78specifications compared
30differ
48identical
55known for one product only

Key differences

Processor model
- SL400 2743:T5670
- ThinkPad T400 (6474-44G):P8400
Processor frequency
- SL400 2743:1.8 GHz
- ThinkPad T400 (6474-44G):2.26 GHz
Processor cache
- SL400 2743:2 MB
- ThinkPad T400 (6474-44G):3 MB
Processor front side bus
- SL400 2743:800 MHz
- ThinkPad T400 (6474-44G):1066 MHz
Processor socket
- SL400 2743:LGA 3647 (Socket P)
- ThinkPad T400 (6474-44G):Socket 478
Processor lithography
- SL400 2743:65 nm
- ThinkPad T400 (6474-44G):45 nm
Processor codename
- SL400 2743:Merom
- ThinkPad T400 (6474-44G):Penryn
Thermal Design Power (TDP)
- SL400 2743:35 W
- ThinkPad T400 (6474-44G):25 W

Side by side

Differences highlightedShow differences only

Comparison of SL400 2743, ThinkPad T400 (6474-44G)
133 specifications	A Lenovo SL400 2743 View product	B Lenovo ThinkPad T400 (6474-44G)View product
Displayidentical
Display surfaceKnown for one	Gloss	Unknown — not stated by the source
Processor12 differ
Processor modelDiffers	T5670	P8400
Processor frequencyDiffers	1.8 GHz	2.26 GHz
Processor cacheDiffers	2 MB	3 MB
Processor front side busDiffers	800 MHz	1066 MHz
Processor socketDiffers	LGA 3647 (Socket P)	Socket 478
Processor lithographyDiffers	65 nm	45 nm
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core 2 Duo P8000 Series
Processor codenameDiffers	Merom	Penryn
FSB ParityKnown for one	Unknown — not stated by the source	No
Thermal Design Power (TDP)Differs	35 W	25 W
TjunctionDiffers	100 °C	105 °C
Number of Processing Die TransistorsDiffers	291 M	410 M
Processing Die sizeDiffers	143 mm²	107 mm²
CPU multiplier (bus/core ratio)Differs	9	8.5
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory2 differ
Internal memoryDiffers	2 GB	3 GB
Memory layout (slots x size)Differs	2 x 1 GB	1 x 1 + 1 x 2 GB
Internal memory typeKnown for one	DDR2-SDRAM	Unknown — not stated by the source
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Maximum internal memoryKnown for one	4 GB	Unknown — not stated by the source
Storage1 differ
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Optical drive typeDiffers	DVD-RW	DVD-ROM
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 4500M	Intel® GMA X4500HD
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.384 GB
Audioidentical
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Networkidentical
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Wireless technologyKnown for one	Wi-Fi	Unknown — not stated by the source
WWANKnown for one	Installed	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	4	3
HDMI ports quantityDiffers	1	0
CardBus PCMCIA slots quantityDiffers	0	1
CardBus PCMCIA slot typeDiffers	No	Type II
PS/2 ports quantityKnown for one	Unknown — not stated by the source	0
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
Serial ports quantityKnown for one	Unknown — not stated by the source	0
Softwareidentical
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Optional operating system suppliedKnown for one	Windows XP Professional	Unknown — not stated by the source
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Embedded options availableKnown for one	Unknown — not stated by the source	Yes
Execute Disable BitDiffers	No	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Processor ARK IDDiffers	35163	35569
Processor codeDiffers	SLAJ5	SL3BU
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Batteryidentical
Battery life (max)Known for one	4.1 h	Unknown — not stated by the source
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	2.5 kg	2.13 kg
WidthDiffers	336 mm	335.3 mm
DepthDiffers	247 mm	238 mm
Height (front)Differs	3.4 cm	2.76 cm
Height (rear)Differs	3.9 cm	3.19 cm
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
Modem typeKnown for one	V.90	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Designidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® GM45 Express	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	Touchpad	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	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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