Product comparison · 2 laptops

Lenovo IdeaPad U550 vs Lenovo ThinkPad R400 (744333G), HU

102specifications compared
28differ
74identical
30known for one product only

Key differences

Display diagonal
- IdeaPad U550:39.6 cm (15.6")
- ThinkPad R400 (744333G), HU:35.8 cm (14.1")
Display resolution
- IdeaPad U550:1366 x 768 pixels
- ThinkPad R400 (744333G), HU:1280 x 800 pixels
Native aspect ratio
- IdeaPad U550:16:9
- ThinkPad R400 (744333G), HU:16:10
Processor family
- IdeaPad U550:Intel® Pentium®
- ThinkPad R400 (744333G), HU:Intel® Core™2 Duo
Processor model
- IdeaPad U550:SU4100
- ThinkPad R400 (744333G), HU:T6670
Processor frequency
- IdeaPad U550:1.3 GHz
- ThinkPad R400 (744333G), HU:2.2 GHz
Processor socket
- IdeaPad U550:BGA 956
- ThinkPad R400 (744333G), HU:Socket 478
Thermal Design Power (TDP)
- IdeaPad U550:10 W
- ThinkPad R400 (744333G), HU:35 W

Side by side

Differences highlightedShow differences only

Comparison of IdeaPad U550, ThinkPad R400 (744333G), HU
132 specifications	A Lenovo IdeaPad U550 View product	B Lenovo ThinkPad R400 (744333G), HU View product
Display3 differ
Display diagonalDiffers	39.6 cm (15.6")	35.8 cm (14.1")
Display resolutionDiffers	1366 x 768 pixels	1280 x 800 pixels
Native aspect ratioDiffers	16:9	16:10
Display brightnessKnown for one	220 cd/m²	Unknown — not stated by the source
Contrast ratio (typical)Known for one	500:1	Unknown — not stated by the source
Processor5 differ
Processor familyDiffers	Intel® Pentium®	Intel® Core™2 Duo
Processor modelDiffers	SU4100	T6670
Processor frequencyDiffers	1.3 GHz	2.2 GHz
Processor socketDiffers	BGA 956	Socket 478
SteppingKnown for one	R0	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	10 W	35 W
TcaseKnown for one	100 °C	Unknown — not stated by the source
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core 2 Duo T6000 Series
TjunctionKnown for one	Unknown — not stated by the source	105 °C
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	11
Memory3 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (slots x size)Differs	2 x 2 GB	1 x 2 GB
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Maximum internal memoryDiffers	8 GB	4 GB
Storage2 differ
Total storage capacityDiffers	500 GB	250 GB
Card reader integratedDiffers	Yes	No
Compatible memory cardsKnown for one	MMC, MS Pro, SD	Unknown — not stated by the source
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-RW
Graphicsidentical
Maximum graphics card memoryKnown for one	0.384 GB	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	High Definition Audio	Intel HDA 24-bit
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Cameraidentical
Front camera resolution (numeric)Known for one	1.3 MP	Unknown — not stated by the source
Network3 differ
Networking featuresDiffers	Gigabit Ethernet, WLAN	WLAN, Gigabit Ethernet
Wireless technologyDiffers	802.11 a/b/g/n	Intel 5100AGN
BluetoothDiffers	Yes	No
Bluetooth versionKnown for one	2.1+EDR	Unknown — not stated by the source
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces2 differ
HDMI ports quantityDiffers	1	0
Modem (RJ-11) portsDiffers	0	1
Performanceidentical
Motherboard chipsetKnown for one	Intel® GS45 Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Trial softwareKnown for one	McAfee VirusScan Plus 2009 Microsoft Offi ce 2007	Unknown — not stated by the source
Bundled softwareKnown for one	Lenovo OneKey Recovery Lenovo ReadyComm Adobe Reader Fingerprint Software VeriFace Lenovo Energy Management Cyberlink Power2Go	Unknown — not stated by the source
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Processor special features3 differ
Intel Virtualization Technology (VT-x)Differs	No	Yes
Processor ARK IDDiffers	43568	42109
Processor codeKnown for one	SLGS4	Unknown — not stated by the source
Processor package sizeDiffers	22 x22 mm	35 x 35 mm
Battery1 differ
Battery life (max)Differs	6 h	5.6 h
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Password protection typeKnown for one	BIOS	Unknown — not stated by the source
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Weight & dimensions2 differ
WidthDiffers	377 mm	335.5 mm
DepthDiffers	251 mm	238 mm
Height (front)Known for one	2.4 cm	Unknown — not stated by the source
Height (rear)Known for one	2.94 cm	Unknown — not stated by the source
HeightKnown for one	Unknown — not stated by the source	34.9 mm
Other features1 differ
Internal modemDiffers	No	Yes
Modem speedKnown for one	Unknown — not stated by the source	56 Kbit/s
Modem typeKnown for one	Unknown — not stated by the source	1

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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