Product comparison · 2 laptops

Lenovo IdeaPad U400 Intel® Core™ i5 i5-2430M vs Lenovo ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1)

139specifications compared
44differ
95identical
42known for one product only

Key differences

Product colour
- IdeaPad U400 Intel® Core™ i5 i5-2430M:Grey, Silver
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):Black
Display diagonal
- IdeaPad U400 Intel® Core™ i5 i5-2430M:35.6 cm (14")
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):31.8 cm (12.5")
Processor model
- IdeaPad U400 Intel® Core™ i5 i5-2430M:i5-2430M
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):i5-2520M
Processor boost frequency
- IdeaPad U400 Intel® Core™ i5 i5-2430M:3 GHz
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):3.2 GHz
Processor frequency
- IdeaPad U400 Intel® Core™ i5 i5-2430M:2.4 GHz
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):2.5 GHz
CPU multiplier (bus/core ratio)
- IdeaPad U400 Intel® Core™ i5 i5-2430M:24
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):25
Internal memory
- IdeaPad U400 Intel® Core™ i5 i5-2430M:8 GB
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):4 GB
Total storage capacity
- IdeaPad U400 Intel® Core™ i5 i5-2430M:750 GB
- ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1):320 GB

Side by side

Differences highlightedShow differences only

Comparison of U400, X220t
181 specifications	A Lenovo IdeaPad U400 Intel® Core™ i5 i5-2430M Model U400 View product	B Lenovo ThinkPad X220t Intel® Core™ i5 i5-2520M Hybrid (2-in-1) Model X220t View product
Design1 differ
Product typeKnown for one	Unknown — not stated by the source	Hybrid (2-in-1)
Product colourDiffers	Grey, Silver	Black
Form factorKnown for one	Unknown — not stated by the source	Convertible (Swivel)
Display1 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
TouchscreenKnown for one	Unknown — not stated by the source	Yes
HD typeKnown for one	Unknown — not stated by the source	HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Gloss	Unknown — not stated by the source
Display brightnessKnown for one	200 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 family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i5
Processor modelDiffers	i5-2430M	i5-2520M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3 GHz	3.2 GHz
Processor frequencyDiffers	2.4 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	Socket 988	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i5-2500 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	24	25
ECC supported by processor	No	No
Memory1 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage6 differ
Total storage capacityDiffers	750 GB	320 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	750 GB	320 GB
HDD interfaceDiffers	SATA II	SATA
HDD speedDiffers	5400 RPM	7200 RPM
Optical drive typeDiffers	DVD Super Multi DL	No
Card reader integratedDiffers	No	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	AMD Radeon HD 6470M	Not available
Graphics card familyDiffers	AMD, Intel	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Number of discrete graphics cardsKnown for one	1	Unknown — not stated by the source
Audio2 differ
Audio systemDiffers	HD	HDA
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
Number of built-in speakers	2	2
Speaker powerDiffers	2 W	1 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera resolution (numeric)	1.3 MP	1.3 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network1 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Gigabit Ethernet	Gigabit Ethernet, WLAN, BT
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	3.0+HS	3.0+HS
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
LAN controllerKnown for one	Intel® 82579V	Unknown — not stated by the source
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	2	3
Ethernet LAN (RJ-45) ports	1	1
DisplayPorts quantityDiffers	0	1
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Headphone outputs	1	1
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	Unknown — not stated by the source	No
Microphone inDiffers	No	Yes
Docking connector	No	No
ExpressCard slotDiffers	No	Yes
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Headphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
Microphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
S-Video portKnown for one	Unknown — not stated by the source	No
TV-out	No	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	0	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® HM65 Express	Intel® QM67 Express
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Full-size keyboardDiffers	Yes	No
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features5 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	53450	52229
Processor codeDiffers	SR04W	SR048
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery3 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery capacityDiffers	54 Wh	66 Wh
Battery life (max)Differs	7 h	8.8 h
Poweridentical
AC adapter power	65 W	65 W
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Power auto-sensingKnown for one	Unknown — not stated by the source	Yes
DC-in jack	Yes	Yes
Security2 differ
Cable lock slotDiffers	No	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Fingerprint readerDiffers	No	Yes
Sustainabilityidentical
Sustainability certificates	EPEAT Gold, ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	1.98 kg	1.8 kg
WidthDiffers	340 mm	305 mm
DepthDiffers	230 mm	228.7 mm
Height (front)Known for one	Unknown — not stated by the source	2.7 cm
Height (rear)Known for one	Unknown — not stated by the source	3.13 cm
Width (imperial)Differs	34 cm (13.4")	30.5 cm (12")
Depth (imperial)Differs	23.1 cm (9.1")	22.9 cm (9")
Height (front) (imperial)Known for one	Unknown — not stated by the source	2.79 cm (1.1")
Height (rear) (imperial)Known for one	Unknown — not stated by the source	3.12 cm (1.23")
HeightKnown for one	22.6 mm	Unknown — not stated by the source
Height (imperial)Known for one	2.26 cm (0.89")	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Supplied AC adapter type	AC	AC
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Internal modemKnown for one	No	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Yes	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.

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