Product comparison · 2 laptops

Lenovo Essential G770 vs Lenovo T420 Win 7 US

130specifications compared
38differ
92identical
34known for one product only

Key differences

Display diagonal
- Essential G770:43.9 cm (17.3")
- T420 Win 7 US:35.6 cm (14")
Processor family
- Essential G770:Intel® Core™ i5
- T420 Win 7 US:Intel® Core™ i7
Processor generation
- Essential G770:2nd gen Intel® Core™ i5
- T420 Win 7 US:2nd gen Intel® Core™ i7
Processor model
- Essential G770:i5-2410M
- T420 Win 7 US:i7-2620M
Processor boost frequency
- Essential G770:2.9 GHz
- T420 Win 7 US:3.4 GHz
Processor frequency
- Essential G770:2.3 GHz
- T420 Win 7 US:2.7 GHz
Processor cache
- Essential G770:3 MB
- T420 Win 7 US:4 MB
PCI Express configurations
- Essential G770:1x8, 1x16, 2x4, 2x8
- T420 Win 7 US:1x16, 2x8, 1x8+2x4

Side by side

Differences highlightedShow differences only

Comparison of Essential G770, T420 Win 7 US
164 specifications	A Lenovo Essential G770 View product	B Lenovo T420 Win 7 US View product
Designidentical
Product typeKnown for one	Laptop	Unknown — not stated by the source
Product colour	Black	Black
Form factorKnown for one	Clamshell	Unknown — not stated by the source
Display1 differ
Display diagonalDiffers	43.9 cm (17.3")	35.6 cm (14")
Display resolution	1600 x 900 pixels	1600 x 900 pixels
TouchscreenKnown for one	No	Unknown — not stated by the source
HD type	HD+	HD+
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i7
Processor modelDiffers	i5-2410M	i7-2620M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.9 GHz	3.4 GHz
Processor frequencyDiffers	2.3 GHz	2.7 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	3 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1023	BGA 1023
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i7-2600 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 configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	23	27
ECC supported by processor	No	No
Memory1 differ
Internal memory	4 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 memoryDiffers	8 GB	16 GB
Storage4 differ
Total storage capacityDiffers	750 GB	500 GB
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityDiffers	750 GB	500 GB
HDD speedDiffers	5400 RPM	7200 RPM
Optical drive typeDiffers	DVD Super Multi DL	DVD-RW
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Memory Stick (MS), MMC, MS PRO, SD, xD	Unknown — not stated by the source
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Radeon HD 6650M	NVIDIA® NVS™ 4200M
Graphics card familyDiffers	AMD	NVIDIA
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 cards installedKnown for one	1	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	HD	Unknown — not stated by the source
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Speaker powerKnown for one	1.5 W	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Cameraidentical
Front cameraKnown for one	Yes	Unknown — not stated by the source
Network3 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Fast Ethernet	Gigabit Ethernet
Wireless technologyKnown for one	Wi-Fi	Unknown — not stated by the source
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, 802.11b, 802.11g
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Bluetooth	Yes	Yes
Cabling technologyDiffers	10/100Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Ports & interfaces4 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	1	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 quantityDiffers	0	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantityDiffers	0	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	No	Unknown — not stated by the source
Microphone in	Yes	Yes
Docking connector	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-out	No	No
ExpressCard slotKnown for one	Unknown — not stated by the source	Yes
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	1
Keyboardidentical
Pointing device	Touchpad	Touchpad
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Compatible operating systemsKnown for one	Windows 7	Unknown — not stated by the source
Processor special features6 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
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)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™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	No	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Smart Response TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	52224	52231
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
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Processor codeKnown for one	Unknown — not stated by the source	SR041
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Fingerprint readerDiffers	No	Yes
Weight & dimensions5 differ
WeightDiffers	3 kg	2.35 kg
WidthDiffers	416 mm	341 mm
DepthDiffers	272 mm	258 mm
Height (front)Differs	3.61 cm	3 cm
Height (rear)Differs	4.49 cm	3.1 cm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Cables includedKnown for one	AC	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
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
Power supply type	AC/DC	AC/DC
TV tuner integrated	No	No
Supplied AC adapter type	AC	AC
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® QM67 Express
Batteryidentical
Number of battery cellsKnown for one	Unknown — not stated by the source	9

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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