Product comparison · 2 laptops

ASUS K551LB-XX164D laptop Intel® Core™ i7 i7-4500U vs ASUS Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U

129specifications compared
26differ
103identical
49known for one product only

Key differences

Product colour
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:Grey, Stainless steel
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:Grey, Silver
Display diagonal
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:39.6 cm (15.6")
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:33.8 cm (13.3")
Display resolution
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:1366 x 768 pixels
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:1920 x 1080 pixels
Touchscreen
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:No
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:Yes
HD type
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:HD
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:Full HD
Internal memory
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:4 GB
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:8 GB
Internal memory type
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:DDR3-SDRAM
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:DDR3L-SDRAM
Total storage capacity
- K551LB-XX164D laptop Intel® Core™ i7 i7-4500U:750 GB
- Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U:128 GB

Side by side

Differences highlightedShow differences only

Comparison of K551LB-XX164D, UX31LA-DS71T
178 specifications	A ASUS K551LB-XX164D laptop Intel® Core™ i7 i7-4500U Model K551LB-XX164D View product	B ASUS Zenbook UX31LA-DS71T laptop Intel® Core™ i7 i7-4500U Model UX31LA-DS71T View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Grey, Stainless steel	Grey, Silver
Form factor	Clamshell	Clamshell
Display4 differ
Display diagonalDiffers	39.6 cm (15.6")	33.8 cm (13.3")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
TouchscreenDiffers	No	Yes
HD typeDiffers	HD	Full HD
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Panel typeKnown for one	Unknown — not stated by the source	IPS
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	4th gen Intel® Core™ i7	4th gen Intel® Core™ i7
Processor model	i7-4500U	i7-4500U
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	3 GHz	3 GHz
Processor frequency	1.8 GHz	1.8 GHz
Processor cache	4 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1168	BGA 1168
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i7-4500 Mobile series	Intel Core i7-4500 Mobile series
Processor codename	Haswell	Haswell
Bus type	DMI2	DMI2
FSB Parity	No	No
Stepping	C0	C0
Thermal Design Power (TDP)	15 W	15 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	12	12
PCI Express configurations	2x4	2x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR3L-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Memory form factorKnown for one	Unknown — not stated by the source	On-board
Maximum internal memoryKnown for one	Unknown — not stated by the source	8 GB
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	8 GB
Storage4 differ
Total storage capacityDiffers	750 GB	128 GB
Storage mediaDiffers	HDD	SSD
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	128 GB
SSD interfaceKnown for one	Unknown — not stated by the source	SATA III
Optical drive typeDiffers	DVD Super Multi	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	SD, SDHC	Memory Stick (MS), MMC, MS PRO, MS PRO Duo, SDHC, SDXC
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	750 GB	Unknown — not stated by the source
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	NVIDIA® GeForce® GT 740M	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 4400	Intel® HD Graphics 4400
Maximum on-board graphics card memory	1.74 GB	1.74 GB
On-board graphics card base frequency	200 MHz	200 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card DirectX version	12	12
On-board graphics card ID	0xA16	0xA16
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Discrete graphics memory typeKnown for one	GDDR3	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	Sonic Master
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network3 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 LANDiffers	Yes	No
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	4.0
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	1	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
Ethernet LAN (RJ-45) portsDiffers	1	0
HDMI ports quantityDiffers	1	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Micro HDMI ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputsDiffers	1	0
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
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
Total number of SATA connectors	4	4
Number of SATA III connectors	4	4
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
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	Yes	No
Island-style keyboardKnown for one	Unknown — not stated by the source	Yes
Windows keys	Yes	Yes
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	FreeDOS	Windows 8.1
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
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	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware Version	9.5	9.5
Intel Rapid Storage Technology	Yes	Yes
Intel Secure Key Technology version	1.00	1.00
Intel Smart Connect Technology	Yes	Yes
Intel Smart Connect Technology version	1.00	1.00
Intel TSX-NI	No	No
Intel TSX-NI version	0.00	0.00
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)	Yes	Yes
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
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)	Yes	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)	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK ID	75460	75460
Processor code	SR16Z	SR16Z
Processor package size	40 x 24 x 1.5 mm	40 x 24 x 1.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium Polymer (LiPo)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	45 W
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC adapter output voltageKnown for one	Unknown — not stated by the source	19 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
Password protectionKnown for one	Unknown — not stated by the source	Yes
Password protection typeKnown for one	Unknown — not stated by the source	BIOS, HDD
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	UL, MIC, CE , FCC, BSMI, Australia C-TICK / NZ A-Tick , CCC, GOST-R, CB, EU Flower, IDA
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
Weight & dimensions3 differ
WeightDiffers	2.21 kg	1.4 kg
WidthDiffers	380 mm	325 mm
DepthDiffers	258 mm	226 mm
Height (front)Known for one	Unknown — not stated by the source	3 mm
Height (rear)Known for one	Unknown — not stated by the source	1.8 cm
HeightKnown for one	21.2 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Warranty cardKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise
3DKnown 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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