Product comparison · 2 laptops

Lenovo ThinkPad 400 Intel® Core™2 Duo P8400 vs Lenovo SL400 2743

81specifications compared
30differ
51identical
53known for one product only

Key differences

Processor model
- ThinkPad 400 Intel® Core™2 Duo P8400:P8400
- SL400 2743:T5670
Processor frequency
- ThinkPad 400 Intel® Core™2 Duo P8400:2.26 GHz
- SL400 2743:1.8 GHz
Processor cache
- ThinkPad 400 Intel® Core™2 Duo P8400:3 MB
- SL400 2743:2 MB
Processor front side bus
- ThinkPad 400 Intel® Core™2 Duo P8400:1066 MHz
- SL400 2743:800 MHz
Processor socket
- ThinkPad 400 Intel® Core™2 Duo P8400:Socket 478
- SL400 2743:LGA 3647 (Socket P)
Processor lithography
- ThinkPad 400 Intel® Core™2 Duo P8400:45 nm
- SL400 2743:65 nm
Processor codename
- ThinkPad 400 Intel® Core™2 Duo P8400:Penryn
- SL400 2743:Merom
Thermal Design Power (TDP)
- ThinkPad 400 Intel® Core™2 Duo P8400:25 W
- SL400 2743:35 W

Side by side

Differences highlightedShow differences only

Comparison of 400, SL400 2743
134 specifications	A Lenovo ThinkPad 400 Intel® Core™2 Duo P8400 Model 400 View product	B Lenovo SL400 2743 View product
Displayidentical
Display diagonal	35.8 cm (14.1")	35.8 cm (14.1")
Display resolution	1280 x 800 pixels	1280 x 800 pixels
Native aspect ratio	16:10	16:10
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Processor12 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	P8400	T5670
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.26 GHz	1.8 GHz
Processor cacheDiffers	3 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	1066 MHz	800 MHz
Processor socketDiffers	Socket 478	LGA 3647 (Socket P)
Processor lithographyDiffers	45 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Intel Core 2 Duo P8000 Series	Unknown — not stated by the source
Processor codenameDiffers	Penryn	Merom
Bus type	FSB	FSB
FSB ParityKnown for one	No	Unknown — not stated by the source
Stepping	M0	M0
Thermal Design Power (TDP)Differs	25 W	35 W
TjunctionDiffers	105 °C	100 °C
Number of Processing Die TransistorsDiffers	410 M	291 M
Processing Die sizeDiffers	107 mm²	143 mm²
CPU multiplier (bus/core ratio)Differs	8.5	9
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	1 GB	2 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	4 GB	4 GB
Memory layout (slots x size)Known for one	Unknown — not stated by the source	2 x 1 GB
Storage3 differ
Total storage capacityDiffers	80 GB	160 GB
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive typeDiffers	DVD-ROM	DVD-RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, SDHC	Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD
Graphics1 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	Intel® GMA 4500MHD	Intel® GMA 4500M
Graphics card family	Intel	Intel
Audioidentical
Audio system	HD	HD
Number of built-in speakers	2	2
Cameraidentical
Front cameraKnown for one	No	Unknown — not stated by the source
Networkidentical
Wi-Fi	Yes	Yes
Ethernet LAN	Yes	Yes
Bluetooth	Yes	Yes
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Wireless technologyKnown for one	Unknown — not stated by the source	Wi-Fi
WWANKnown for one	Unknown — not stated by the source	Installed
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	3	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	0	1
DisplayPorts 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 connectorDiffers	Yes	No
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Modem (RJ-11) ports	1	1
TV-out	No	No
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Operating system architectureKnown for one	32-bit	Unknown — not stated by the source
Optional operating system suppliedKnown for one	Unknown — not stated by the source	Windows XP Professional
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Embedded options availableKnown for one	Yes	Unknown — not stated by the source
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable BitDiffers	Yes	No
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost Technology	No	No
Processor ARK IDDiffers	35569	35163
Processor codeDiffers	SL3BU	SLAJ5
Processor package size	35 x 35 mm	35 x 35 mm
Thermal Monitoring TechnologiesKnown for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Batteryidentical
Number of battery cells	6	6
Battery life (max)Known for one	Unknown — not stated by the source	4.1 h
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	Yes	No
Cable lock slot typeKnown for one	IBM	Unknown — not stated by the source
Fingerprint reader	Yes	Yes
Password protection typeKnown for one	HDD	Unknown — not stated by the source
Weight & dimensions3 differ
WeightDiffers	2.38 kg	2.5 kg
WidthDiffers	335.5 mm	336 mm
DepthDiffers	238 mm	247 mm
HeightKnown for one	32 mm	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	3.4 cm
Height (rear)Known for one	Unknown — not stated by the source	3.9 cm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Internal modemKnown for one	Unknown — not stated by the source	Yes
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
Modem typeKnown for one	Unknown — not stated by the source	V.90
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® GM45 Express
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	Touchpad
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR

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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