Product comparison · 2 laptops

ASUS Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop vs Dynabook Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook

129specifications compared
46differ
83identical
88known for one product only

Key differences

Product type
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:Laptop
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:Ultrabook
Product colour
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:Blue
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:Black
Form factor
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:Clamshell
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:Convertible (Detachable)
Display diagonal
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:33.8 cm (13.3")
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:31.8 cm (12.5")
Touchscreen
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:No
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:Yes
Processor family
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:Intel® Core™ i7
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:Intel® Core™ m5
Processor generation
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:8th gen Intel® Core™ i7
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:6th gen Intel® Core™ m5
Processor model
- Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop:i7-8550U
- Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook:m5-6Y54

Side by side

Differences highlightedShow differences only

Comparison of UX331UA-EG051T, Z20t-C-156
217 specifications	A ASUS Zenbook UX331UA-EG051T Intel® Core™ i7 i7-8550U Laptop Model UX331UA-EG051T View product	B Dynabook Portégé Z20t-C-156 Intel® Core™ m5 m5-6Y54 Ultrabook Model Z20t-C-156 View product
Design3 differ
Product typeDiffers	Laptop	Ultrabook
Product colourDiffers	Blue	Black
Form factorDiffers	Clamshell	Convertible (Detachable)
Display2 differ
Display diagonalDiffers	33.8 cm (13.3")	31.8 cm (12.5")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
TouchscreenDiffers	No	Yes
HD type	Full HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Touchscreen typeKnown for one	Unknown — not stated by the source	Capacitive
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Panel typeKnown for one	Unknown — not stated by the source	IPS
Processor17 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ m5
Processor generationDiffers	8th gen Intel® Core™ i7	6th gen Intel® Core™ m5
Processor modelDiffers	i7-8550U	m5-6Y54
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyDiffers	4 GHz	2.7 GHz
Processor frequencyDiffers	1.8 GHz	1.1 GHz
System bus rateKnown for one	4 GT/s	Unknown — not stated by the source
Processor cacheDiffers	8 MB	4 MB
Processor socketDiffers	BGA 1356	BGA 1515
Processor lithography	14 nm	14 nm
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor codenameDiffers	Kaby Lake R	Skylake
Bus type	OPI	OPI
SteppingDiffers	Y0	D1
Thermal Design Power (TDP)Differs	15 W	4.5 W
Configurable TDP-up frequencyKnown for one	2 GHz	Unknown — not stated by the source
Configurable TDP-upDiffers	25 W	7 W
Configurable TDP-downDiffers	10 W	3.5 W
Configurable TDP-down frequencyKnown for one	0.8 GHz	Unknown — not stated by the source
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	12	10
PCI Express configurationsDiffers	1x2+2x1, 1x4, 2x2, 4x1	1x2+2x1, 2x2, 1x4, 4x1
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Processor cache typeKnown for one	Unknown — not stated by the source	Smart Cache
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core m5-6Y Series
Memoryidentical
Internal memory	8 GB	8 GB
Internal memory type	LPDDR3-SDRAM	LPDDR3-SDRAM
Memory form factor	On-board	On-board
Maximum internal memory	8 GB	8 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Storage2 differ
Total storage capacityDiffers	256 GB	512 GB
Storage media	SSD	SSD
SSD capacityDiffers	256 GB	512 GB
SSD interfaceKnown for one	SATA III	Unknown — not stated by the source
SSD form factor	M.2	M.2
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cards	MicroSD (TransFlash)	MicroSD (TransFlash)
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
Graphics5 differ
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card familyDiffers	Intel® UHD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® UHD Graphics 620	Intel® HD Graphics 515
Maximum on-board graphics card memoryDiffers	32 GB	1.74 GB
On-board graphics card base frequency	300 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	1150 MHz	900 MHz
On-board graphics card DirectX version	12.0	12.0
On-board graphics card OpenGL version	4.4	4.4
On-board graphics card IDDiffers	0x5917	0x191E
On-board GPU manufacturerKnown for one	Unknown — not stated by the source	Intel
Audio1 differ
Audio systemDiffers	SonicMaster	DTS Studio Sound
Number of built-in speakers	2	2
Speaker powerKnown for one	1 W	Unknown — not stated by the source
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Rear cameraKnown for one	Unknown — not stated by the source	Yes
Rear camera resolution (numeric)Known for one	Unknown — not stated by the source	5 MP
Network2 differ
Wi-Fi	Yes	Yes
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 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	No	Yes
Bluetooth	Yes	Yes
Bluetooth versionDiffers	4.2	4.0
Mobile network connectionKnown for one	Unknown — not stated by the source	Yes
Mobile network generationKnown for one	Unknown — not stated by the source	4G
2G standardsKnown for one	Unknown — not stated by the source	Edge, GPRS, GSM
3G standardsKnown for one	Unknown — not stated by the source	HSPA+
4G standardKnown for one	Unknown — not stated by the source	LTE
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Bluetooth Low Energy (BLE)Known for one	Unknown — not stated by the source	Yes
Ports & interfaces4 differ
USB 2.0 ports quantity	0	0
USB 2.0 Type-C ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	1	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0	0
Micro-USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
Micro-USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
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
Ethernet LAN (RJ-45) portsDiffers	0	1
HDMI ports quantity	1	1
HDMI versionKnown for one	1.4	Unknown — not stated by the source
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
VGA (D-Sub) ports quantityDiffers	0	1
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 2 ports quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 3 ports quantity	0	0
Mini HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Micro HDMI ports quantityDiffers	0	1
LAN/VGA combo portKnown for one	No	Unknown — not stated by the source
Mini VGA ports quantityKnown for one	0	Unknown — not stated by the source
Headphone outputsDiffers	0	1
S/PDIF out portKnown for one	No	Unknown — not stated by the source
Combo headphone/mic port	Yes	Yes
Line-inKnown for one	No	Unknown — not stated by the source
Microphone inKnown for one	No	Unknown — not stated by the source
Alienware graphics amplifier portKnown for one	No	Unknown — not stated by the source
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
Total number of SATA connectorsKnown for one	0	Unknown — not stated by the source
Number of SATA III connectorsKnown for one	0	Unknown — not stated by the source
Number of USB ports with PowerShare supportKnown for one	0	Unknown — not stated by the source
Number of Thunderbolt 3 ports with PowerShare supportKnown for one	0	Unknown — not stated by the source
Docking connectorKnown for one	Unknown — not stated by the source	Yes
Performanceidentical
Motherboard chipsetKnown for one	Intel SoC	Unknown — not stated by the source
AccelerometerKnown for one	Unknown — not stated by the source	Yes
Ambient light sensorKnown for one	Unknown — not stated by the source	Yes
Electronic compassKnown for one	Unknown — not stated by the source	Yes
GPS (satellite)Known for one	Unknown — not stated by the source	Yes
GyroscopeKnown for one	Unknown — not stated by the source	Yes
Keyboard1 differ
Pointing deviceDiffers	Touchpad	Clickpad
Numeric keypad	No	No
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keys	Yes	Yes
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Keyboard number of keysKnown for one	Unknown — not stated by the source	87
Software1 differ
Operating system installedDiffers	Windows 10 Home	Windows 10 Pro
Operating system architecture	64-bit	64-bit
Processor special features4 differ
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	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Secure Key Technology version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel TSX-NI	No	No
Intel TSX-NI versionDiffers	0.00	1.00
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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	Yes	Unknown — not stated by the source
Intel® InTru™ 3D Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	122589	88202
Processor package sizeDiffers	42 x 24 mm	20 X 16.5 mm
Supported instruction setsDiffers	AVX 2.0, SSE4.1, SSE4.2	SSE4.1, SSE4.2, AVX 2.0
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	14 nm
Intel Small Business Advantage (SBA) versionKnown for one	Unknown — not stated by the source	1.00
Intel Stable Image Platform Program (SIPP)Known for one	Unknown — not stated by the source	No
Intel Stable Image Platform Program (SIPP) versionKnown for one	Unknown — not stated by the source	0.00
Intel® Insider™Known for one	Unknown — not stated by the source	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SR2EM
Batteryidentical
Battery capacityKnown for one	50 Wh	Unknown — not stated by the source
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	3
Battery life (max)Known for one	Unknown — not stated by the source	19 h
Poweridentical
AC adapter powerKnown for one	45 W	Unknown — not stated by the source
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output current	2.37 A	2.37 A
AC adapter output voltage	19 V	19 V
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Security1 differ
Cable lock slot	Yes	Yes
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
Password protection	Yes	Yes
Password protection typeDiffers	BIOS, User	HDD, Supervisor, User
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
CertificationKnown for one	UL, TUV, MIC, CE Marking Compliance, FCC Compliance, BSMI, Australia C-TICK / NZ A-Tick Compliance, CCC, CB, EPEAT, EU Flower, Energy star, WEEE, Erp 2013, RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions3 differ
WeightDiffers	1.1 kg	1.48 kg
WidthDiffers	310 mm	309 mm
DepthDiffers	216 mm	215.2 mm
HeightKnown for one	13.9 mm	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	1.85 cm
Height (rear)Known for one	Unknown — not stated by the source	2.1 cm
Weight (tablet mode)Known for one	Unknown — not stated by the source	699 g
Width (tablet mode)Known for one	Unknown — not stated by the source	30.9 cm
Depth (tablet mode)Known for one	Unknown — not stated by the source	20 cm
Height (tablet mode)Known for one	Unknown — not stated by the source	8.8 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes

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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