Product comparison · 2 laptops

Lenovo IdeaPad G470 Intel® Core™ i3 i3-2310M vs Lenovo IdeaPad U400 Intel® Core™ i5 i5-2430M

136specifications compared
37differ
99identical
36known for one product only

Key differences

Product colour
- IdeaPad G470 Intel® Core™ i3 i3-2310M:Black
- IdeaPad U400 Intel® Core™ i5 i5-2430M:Grey, Silver
Processor family
- IdeaPad G470 Intel® Core™ i3 i3-2310M:Intel® Core™ i3
- IdeaPad U400 Intel® Core™ i5 i5-2430M:Intel® Core™ i5
Processor generation
- IdeaPad G470 Intel® Core™ i3 i3-2310M:2nd gen Intel® Core™ i3
- IdeaPad U400 Intel® Core™ i5 i5-2430M:2nd gen Intel® Core™ i5
Processor model
- IdeaPad G470 Intel® Core™ i3 i3-2310M:i3-2310M
- IdeaPad U400 Intel® Core™ i5 i5-2430M:i5-2430M
Processor frequency
- IdeaPad G470 Intel® Core™ i3 i3-2310M:2.1 GHz
- IdeaPad U400 Intel® Core™ i5 i5-2430M:2.4 GHz
Processor socket
- IdeaPad G470 Intel® Core™ i3 i3-2310M:BGA 1023
- IdeaPad U400 Intel® Core™ i5 i5-2430M:Socket 988
CPU multiplier (bus/core ratio)
- IdeaPad G470 Intel® Core™ i3 i3-2310M:21
- IdeaPad U400 Intel® Core™ i5 i5-2430M:24
Internal memory
- IdeaPad G470 Intel® Core™ i3 i3-2310M:2 GB
- IdeaPad U400 Intel® Core™ i5 i5-2430M:8 GB

Side by side

Differences highlightedShow differences only

Comparison of G470, U400
172 specifications	A Lenovo IdeaPad G470 Intel® Core™ i3 i3-2310M Model G470 View product	B Lenovo IdeaPad U400 Intel® Core™ i5 i5-2430M Model U400 View product
Design1 differ
Product colourDiffers	Black	Grey, Silver
Displayidentical
Display diagonal	35.6 cm (14")	35.6 cm (14")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Display brightnessKnown for one	Unknown — not stated by the source	200 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
External displayKnown for one	No	Unknown — not stated by the source
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2310M	i5-2430M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3 GHz
Processor frequencyDiffers	2.1 GHz	2.4 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 1023	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2300 Mobile Series	Intel Core i5-2400 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	21	24
ECC supported by processor	No	No
Memory1 differ
Internal memoryDiffers	2 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage5 differ
Total storage capacityDiffers	320 GB	750 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	320 GB	750 GB
HDD interfaceDiffers	SATA	SATA II
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Optical drive typeDiffers	DVD Super Multi	DVD Super Multi DL
Card reader integratedDiffers	Yes	No
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, xD	Unknown — not stated by the source
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	Not available	AMD Radeon HD 6470M
Graphics card familyDiffers	Intel	AMD, 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	1100 MHz	1200 MHz
On-board graphics card ID	0x116	0x116
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
Audio1 differ
Audio system	HD	HD
Number of built-in speakers	2	2
Speaker powerDiffers	1.5 W	2 W
Built-in microphone	Yes	Yes
Camera1 differ
Front camera resolution (numeric)Differs	0.3 MP	1.3 MP
Swivel webcamKnown for one	No	Unknown — not stated by the source
Network3 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Fast Ethernet	Gigabit Ethernet
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
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Cabling technologyDiffers	10/100Base-T(X)	10/100/1000Base-T(X)
LAN controllerKnown for one	Unknown — not stated by the source	Intel® 82579V
Integrated 4G WiMAX	Yes	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	4	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA/USB 2.0 ports quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	1	0
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone inDiffers	Yes	No
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) portsKnown for one	Unknown — not stated by the source	0
TV-out	No	No
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® HM65 Express
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	Yes	No
Full-size keyboard	Yes	Yes
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard layoutKnown for one	Alphanumeric	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Home Basic	Windows 7 Home Premium
Operating system architectureKnown for one	Unknown — not stated by the source	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 Technology	No	No
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)	No	No
Intel® AES New Instructions (Intel® AES-NI)Differs	No	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 CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	52220	53450
Processor codeDiffers	SR04S	SR04W
Processor package sizeDiffers	37.5 x 37.5 xrPGA988B); 31 x 24 (BGA1023)	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Battery technologyKnown for one	Unknown — not stated by the source	Lithium Polymer (LiPo)
Battery capacityKnown for one	Unknown — not stated by the source	54 Wh
Battery life (max)Differs	5 h	7 h
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Fingerprint readerKnown for one	Unknown — not stated by the source	No
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions2 differ
WeightDiffers	2.2 kg	1.98 kg
Width	340 mm	340 mm
DepthDiffers	231.8 mm	230 mm
HeightKnown for one	Unknown — not stated by the source	22.6 mm
Width (imperial)Known for one	Unknown — not stated by the source	34 cm (13.4")
Depth (imperial)Known for one	Unknown — not stated by the source	23.1 cm (9.1")
Height (imperial)Known for one	Unknown — not stated by the source	2.26 cm (0.89")
Height (front)Known for one	1.72 cm	Unknown — not stated by the source
Height (rear)Known for one	3.44 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Power supply type	AC/DC	AC/DC
Internal modemKnown for one	Unknown — not stated by the source	No
Supplied AC adapter type	AC	AC
3DKnown for one	No	Unknown — not stated by the source
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u	Unknown — not stated by the source
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	No	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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