Product comparison · 2 laptops

Lenovo IdeaPad U350 vs Lenovo ThinkPad T400 (276552G), BE

82specifications compared
36differ
46identical
45known for one product only

Key differences

Display diagonal
- IdeaPad U350:33.8 cm (13.3")
- ThinkPad T400 (276552G), BE:35.8 cm (14.1")
Display resolution
- IdeaPad U350:1366 x 768 pixels
- ThinkPad T400 (276552G), BE:1440 x 900 pixels
Native aspect ratio
- IdeaPad U350:16:9
- ThinkPad T400 (276552G), BE:16:10
Processor family
- IdeaPad U350:Intel® Celeron® M
- ThinkPad T400 (276552G), BE:Intel® Core™2 Duo
Processor model
- IdeaPad U350:ULV 723
- ThinkPad T400 (276552G), BE:P8700
Processor cores
- IdeaPad U350:1
- ThinkPad T400 (276552G), BE:2
Processor frequency
- IdeaPad U350:1.2 GHz
- ThinkPad T400 (276552G), BE:2.53 GHz
Processor cache
- IdeaPad U350:1 MB
- ThinkPad T400 (276552G), BE:3 MB

Side by side

Differences highlightedShow differences only

Comparison of IdeaPad U350, ThinkPad T400 (276552G), BE
127 specifications	A Lenovo IdeaPad U350 View product	B Lenovo ThinkPad T400 (276552G), BE View product
Display3 differ
Display diagonalDiffers	33.8 cm (13.3")	35.8 cm (14.1")
Display resolutionDiffers	1366 x 768 pixels	1440 x 900 pixels
Native aspect ratioDiffers	16:9	16:10
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Processor8 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron® M	Intel® Core™2 Duo
Processor modelDiffers	ULV 723	P8700
Processor coresDiffers	1	2
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor frequencyDiffers	1.2 GHz	2.53 GHz
Processor cacheDiffers	1 MB	3 MB
Processor cache type	L2	L2
Processor front side busDiffers	800 MHz	1066 MHz
Processor socketDiffers	BGA 956	Socket 479
Processor lithography	45 nm	45 nm
Processor operating modes	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 type	FSB	FSB
FSB Parity	No	No
Stepping	R0	R0
Thermal Design Power (TDP)Differs	10 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)Known for one	Unknown — not stated by the source	9.5
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memoryidentical
Internal memory	2 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1066 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 2 GB
Maximum internal memory	4 GB	4 GB
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	160 GB	320 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Card reader integratedDiffers	Yes	No
Optical drive typeKnown for one	DVD±RW	Unknown — not stated by the source
Compatible memory cardsKnown for one	MMC, MS Pro, SD	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	Intel® GMA 4500M	AMD Mobility Radeon HD 3470
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.256 GB
Audio1 differ
Audio systemDiffers	High Definition Audio	HDA 24-bit
Number of built-in speakers	2	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
Front camera resolution (numeric)Known for one	1.3 MP	Unknown — not stated by the source
Network2 differ
Networking featuresDiffers	Gigabit Ethernet	Gigabit Ethernet, WLAN
Wireless technologyDiffers	IEEE 802.11b/g	Intel WiFi 5300AGN
Bluetooth	Yes	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	2.0+EDR
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces5 differ
USB 2.0 ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	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 slotDiffers	Yes	No
Modem (RJ-11) portsDiffers	0	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 layoutKnown for one	Unknown — not stated by the source	AZERTY
Pointing deviceKnown for one	Touchpad	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows Vista Home Premium	Windows Vista Business
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Processor special features7 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep TechnologyDiffers	No	Yes
Execute Disable Bit	Yes	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based Switching	No	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® Hyper Threading Technology (Intel® HT Technology)	No	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
Intel® Turbo Boost Technology	No	No
Processor ARK IDDiffers	36685	37006
Processor codeDiffers	SLGAM	SLGFE
Processor package sizeDiffers	22 x 22 mm	35 x 35 mm
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Conflict-Free processor	No	No
Battery1 differ
Number of battery cellsDiffers	4	6
Battery life (max)Known for one	Unknown — not stated by the source	6.3 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	IBM	IBM
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
HDD user password	Yes	Yes
Weight & dimensions4 differ
WeightDiffers	1.6 kg	2.38 kg
WidthDiffers	328 mm	335 mm
DepthDiffers	228 mm	238 mm
HeightDiffers	25 mm	31.9 mm
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other features1 differ
Infrared data port	No	No
Internal modemDiffers	No	Yes
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
Intel segment taggingKnown for one	Unknown — not stated by the source	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.

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