Product comparison · 2 laptops

ASUS Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M vs ASUS Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U

131specifications compared
45differ
86identical
36known for one product only

Key differences

Product colour
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:Aluminium, Silver
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:Grey, Silver
Display resolution
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:1600 x 900 pixels
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:1920 x 1080 pixels
HD type
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:HD+
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:Full HD
Processor generation
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:2nd gen Intel® Core™ i5
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:4th gen Intel® Core™ i5
Processor model
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:i5-2557M
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:i5-4200U
Processor boost frequency
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:2.7 GHz
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:2.6 GHz
Processor frequency
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:1.7 GHz
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:1.6 GHz
Processor cache type
- Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M:L3
- Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U:Smart Cache

Side by side

Differences highlightedShow differences only

Comparison of UX31E-2557M, UX31LA-UH51T
167 specifications	A ASUS Zenbook UX31E-2557M laptop Intel® Core™ i5 i5-2557M Model UX31E-2557M View product	B ASUS Zenbook UX31LA-UH51T laptop Intel® Core™ i5 i5-4200U Model UX31LA-UH51T View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Aluminium, Silver	Grey, Silver
Form factor	Clamshell	Clamshell
Display2 differ
Display diagonal	33.8 cm (13.3")	33.8 cm (13.3")
Display resolutionDiffers	1600 x 900 pixels	1920 x 1080 pixels
HD typeDiffers	HD+	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
TouchscreenKnown for one	No	Unknown — not stated by the source
Processor14 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i5	4th gen Intel® Core™ i5
Processor modelDiffers	i5-2557M	i5-4200U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.7 GHz	2.6 GHz
Processor frequencyDiffers	1.7 GHz	1.6 GHz
Processor cache	3 MB	3 MB
Processor cache typeDiffers	L3	Smart Cache
Processor socketDiffers	BGA 1023	BGA 1168
Processor lithographyDiffers	32 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2500 Mobile Series	Intel Core i5-4200 Mobile series
Processor codenameDiffers	Sandy Bridge	Haswell
Bus typeDiffers	DMI	DMI2
FSB Parity	No	No
SteppingDiffers	J1	C0
Thermal Design Power (TDP)Differs	17 W	15 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	16	12
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x4, 2x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	17	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR3L-SDRAM
Memory clock speedDiffers	1333 MHz	1600 MHz
Memory form factor	On-board	On-board
Maximum internal memoryKnown for one	Unknown — not stated by the source	8 GB
Storage1 differ
Total storage capacity	128 GB	128 GB
Storage media	SSD	SSD
Number of SSDs installed	1	1
SSD capacity	128 GB	128 GB
SSD interface	SATA III	SATA III
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	SD	Memory Stick (MS), MMC, MS Duo, MS PRO, SDHC, SDXC
Optical drive typeKnown for one	No	Unknown — not stated by the source
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 3000	Intel® HD Graphics 4400
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	1.74 GB
On-board graphics card base frequencyDiffers	350 MHz	200 MHz
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1000 MHz
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	12
On-board graphics card IDDiffers	0x116	0xA16
Audioidentical
Speakers manufacturer	Bang & Olufsen	Bang & Olufsen
Built-in microphone	Yes	Yes
Audio systemKnown for one	SonicMaster	Unknown — not stated by the source
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)Known for one	0.3 MP	Unknown — not stated by the source
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	No	No
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	1	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	1	2
Ethernet LAN (RJ-45) ports	0	0
HDMI ports quantity	0	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI portDiffers	No	Yes
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Micro HDMI ports quantity	1	1
Headphone outputs	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone in	No	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
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Number of SATA III connectorsKnown for one	Unknown — not stated by the source	4
Mini VGA ports quantityKnown for one	1	Unknown — not stated by the source
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Windows keys	Yes	Yes
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 8
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Processor special features12 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
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware VersionKnown for one	Unknown — not stated by the source	9.5
Intel Rapid Storage TechnologyDiffers	No	Yes
Intel Secure Key Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Smart Connect TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Smart Connect Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel TSX-NIKnown for one	Unknown — not stated by the source	No
Intel TSX-NI versionKnown for one	Unknown — not stated by the source	0.00
Intel Trusted Execution TechnologyDiffers	Yes	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)Differs	Yes	No
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® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	Yes
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® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure KeyKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost Technology	2.0	2.0
Intel® Virtualization Technology (Intel® VT)Differs	VT-d, VT-x	VT-x
Processor ARK IDDiffers	54620	75459
Processor codeKnown for one	Unknown — not stated by the source	SR170
Processor package sizeDiffers	31.0 x 24.0 (BGA1023)	40 x 24 x 1.5 mm
Supported instruction setsDiffers	AVX	AVX 2.0
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processorDiffers	No	Yes
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Battery1 differ
Battery technology	Lithium Polymer (LiPo)	Lithium Polymer (LiPo)
Number of battery cellsDiffers	4	6
Battery capacityKnown for one	6840 mAh	Unknown — not stated by the source
Poweridentical
AC adapter power	45 W	45 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output voltage	19 V	19 V
DC-in jack	Yes	Yes
AC adapter output currentKnown for one	2.37 A	Unknown — not stated by the source
Securityidentical
Cable lock slot	No	No
Password protectionKnown for one	Unknown — not stated by the source	Yes
Password protection typeKnown for one	Unknown — not stated by the source	BIOS, HDD, User
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	UL, MIC, CE Marking Compliance, FCC Compliance, BSMI, Australia C-TICK / NZ A-Tick Compliance, CCC, GOST-R, CB, EU Flower, Energy star, IDA
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Weight & dimensions2 differ
Width	325 mm	325 mm
DepthDiffers	223 mm	226 mm
Height (front)	3 mm	3 mm
Height (rear)Differs	1.7 cm	1.8 cm
WeightKnown for one	1.3 kg	Unknown — not stated by the source
Other featuresidentical
Intel segment tagging	Enterprise	Enterprise
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel QS67 Express	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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