Product comparison · 2 laptops

Lenovo ThinkPad SL400 Intel® Core™2 Duo T5870 vs Lenovo ThinkPad T400 (6474-44G)

67specifications compared
29differ
38identical
57known for one product only

Key differences

Processor model
- ThinkPad SL400 Intel® Core™2 Duo T5870:T5870
- ThinkPad T400 (6474-44G):P8400
Processor frequency
- ThinkPad SL400 Intel® Core™2 Duo T5870:2 GHz
- ThinkPad T400 (6474-44G):2.26 GHz
Processor cache
- ThinkPad SL400 Intel® Core™2 Duo T5870:2 MB
- ThinkPad T400 (6474-44G):3 MB
Processor front side bus
- ThinkPad SL400 Intel® Core™2 Duo T5870:800 MHz
- ThinkPad T400 (6474-44G):1066 MHz
Processor socket
- ThinkPad SL400 Intel® Core™2 Duo T5870:LGA 3647 (Socket P)
- ThinkPad T400 (6474-44G):Socket 478
Processor lithography
- ThinkPad SL400 Intel® Core™2 Duo T5870:65 nm
- ThinkPad T400 (6474-44G):45 nm
Thermal Design Power (TDP)
- ThinkPad SL400 Intel® Core™2 Duo T5870:35 W
- ThinkPad T400 (6474-44G):25 W
Tjunction
- ThinkPad SL400 Intel® Core™2 Duo T5870:100 °C
- ThinkPad T400 (6474-44G):105 °C

Side by side

Differences highlightedShow differences only

Comparison of SL400, ThinkPad T400 (6474-44G)
124 specifications	A Lenovo ThinkPad SL400 Intel® Core™2 Duo T5870 Model SL400 View product	B Lenovo ThinkPad T400 (6474-44G)View product
Displayidentical
Display resolutionKnown for one	Unknown — not stated by the source	1280 x 800 pixels
Native aspect ratioKnown for one	Unknown — not stated by the source	16:10
Processor12 differ
Processor modelDiffers	T5870	P8400
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor frequencyDiffers	2 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 seriesDiffers	Intel Core 2 Duo T5000 Series	Intel Core 2 Duo P8000 Series
Processor codenameKnown for one	Unknown — not stated by the source	Penryn
Bus typeKnown for one	Unknown — not stated by the source	FSB
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	10	8.5
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory1 differ
Internal memoryDiffers	2 GB	3 GB
Memory layout (slots x size)Known for one	Unknown — not stated by the source	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
Storage2 differ
Total storage capacityDiffers	250 GB	160 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Optical drive typeDiffers	DVD-RW	DVD-ROM
Graphicsidentical
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA X4500HD
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
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
Network1 differ
BluetoothDiffers	No	Yes
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Wireless technologyKnown for one	Wi-Fi	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
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	1
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
TV-in portKnown for one	No	Unknown — not stated by the source
Softwareidentical
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Processor special features4 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Embedded options availableDiffers	No	Yes
Idle StatesKnown for one	Unknown — not stated by the source	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)Known for one	Unknown — not stated by the source	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	37034	35569
Processor codeDiffers	SLAZR	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
Number of battery cellsKnown for one	Unknown — not stated by the source	6
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
Internal modemKnown for one	Unknown — not stated by the source	Yes
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
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
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.

More laptop comparisons

All laptop comparisons