Product comparison · 2 laptops

ASUS Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M vs ASUS Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M

145specifications compared
11differ
134identical
5known for one product only

Key differences

Display diagonal
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:29.5 cm (11.6")
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:33.8 cm (13.3")
Display resolution
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:1366 x 768 pixels
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:1600 x 900 pixels
Total storage capacity
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:128 GB
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:256 GB
SSD capacity
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:128 GB
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:256 GB
Card reader integrated
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:No
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:Yes
Ethernet LAN (RJ-45) ports
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:0
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:1
Battery capacity
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:35 Wh
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:50 Wh
Battery life (max)
- Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M:5 h
- Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M:7 h

Side by side

Differences highlightedShow differences only

Comparison of UX21E-DH71, UX31E-DH72
150 specifications	A ASUS Zenbook UX21E-DH71 laptop Intel® Core™ i7 i7-2677M Model UX21E-DH71 View product	B ASUS Zenbook UX31E-DH72 laptop Intel® Core™ i7 i7-2677M Model UX31E-DH72 View product
Designidentical
Product colour	Aluminium, Metallic	Aluminium, Metallic
Form factor	Clamshell	Clamshell
Housing material	Aluminium, Metal	Aluminium, Metal
Display2 differ
Display diagonalDiffers	29.5 cm (11.6")	33.8 cm (13.3")
Display resolutionDiffers	1366 x 768 pixels	1600 x 900 pixels
HD typeKnown for one	Unknown — not stated by the source	HD+
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i7
Processor model	i7-2677M	i7-2677M
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	2.9 GHz	2.9 GHz
Processor frequency	1.8 GHz	1.8 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	4 MB	4 MB
Processor cache type	L3	L3
Processor socket	BGA 1023	BGA 1023
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i7-2600 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)	17 W	17 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x8, 1x16, 2x4, 2x8	1x8, 1x16, 2x4, 2x8
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)	18	18
ECC supported by processor	No	No
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Storage3 differ
Total storage capacityDiffers	128 GB	256 GB
Storage media	SSD	SSD
SSD capacityDiffers	128 GB	256 GB
SSD interface	SATA III	SATA III
Optical drive type	No	No
Card reader integratedDiffers	No	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
Graphics card family	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	350 MHz	350 MHz
On-board graphics card dynamic frequency (max)	1200 MHz	1200 MHz
On-board graphics card ID	0x116	0x116
Audioidentical
Audio system	SonicMaster	SonicMaster
Built-in microphone	Yes	Yes
Cameraidentical
Front camera resolution (numeric)	0.3 MP	0.3 MP
Optical driveidentical
LightScribe	No	No
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	No	No
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Integrated 4G WiMAX	Yes	Yes
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ports & interfaces1 differ
USB 2.0 ports quantity	1	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1	1
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) portsDiffers	0	1
HDMI ports quantity	0	0
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Micro HDMI ports quantity	1	1
Mini VGA ports quantity	1	1
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
TV-out	No	No
Performanceidentical
Motherboard chipset	Intel QS67 Express	Intel QS67 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Keyboard layoutKnown for one	QWERTY	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special featuresidentical
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	Yes	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)	Yes	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® Turbo Boost Technology	2.0	2.0
Processor ARK ID	54617	54617
Processor package size	31.0 x 24.0 (BGA1023)	31.0 x 24.0 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery2 differ
Battery technology	Lithium Polymer (LiPo)	Lithium Polymer (LiPo)
Battery capacityDiffers	35 Wh	50 Wh
Battery life (max)Differs	5 h	7 h
Poweridentical
AC adapter power	45 W	45 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter output current	2.37 A	2.37 A
AC adapter output voltage	19 V	19 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	EPEAT Gold, ENERGY STAR
Weight & dimensions3 differ
WeightDiffers	1.1 kg	1.3 kg
WidthDiffers	299 mm	325 mm
DepthDiffers	196 mm	223 mm
Height (front)	3 mm	3 mm
Height (rear)	1.7 cm	1.7 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Power requirements	100 - 240 V AC	100 - 240 V AC
Intel segment tagging	Enterprise	Enterprise
Supplied AC adapter type	AC	AC

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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