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
LED backlight	Yes	Yes
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 manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™2 Duo
Processor modelDiffers	SU4100	T6670
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	1.3 GHz	2.2 GHz
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
Processor front side bus	800 MHz	800 MHz
Processor socketDiffers	BGA 956	Socket 478
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor codename	Penryn	Penryn
Bus type	FSB	FSB
FSB Parity	No	No
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
Number of Processing Die Transistors	410 M	410 M
Processing Die size	107 mm²	107 mm²
ECC supported by processor	No	No
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
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1066 MHz	1066 MHz
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
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
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
Discrete graphics card	Yes	Yes
Discrete graphics card model	Intel® GMA 4500MHD	Intel® GMA 4500MHD
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
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) ports	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	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
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® Wireless Display (Intel® WiDi)	No	No
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	No	No
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Turbo Boost Technology	No	No
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
Thermal Monitoring Technologies	No	No
Conflict-Free processor	No	No
Battery1 differ
Number of battery cells	6	6
Battery life (max)Differs	6 h	5.6 h
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
DC-in jack	Yes	Yes
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Password protection typeKnown for one	BIOS	Unknown — not stated by the source
HDD user password	Yes	Yes
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
Weight	2.4 kg	2.4 kg
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
Packaging contentidentical
AC adapter included	Yes	Yes
Other features1 differ
Infrared data port	No	No
Internal modemDiffers	No	Yes
Supplied AC adapter type	AC	AC
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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