Product comparison · 2 laptops

Acer Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop vs GIGABYTE P56X V7-KL4K3

134specifications compared
33differ
101identical
32known for one product only

Key differences

Display diagonal
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:53.3 cm (21")
- P56X V7-KL4K3:39.6 cm (15.6")
Display resolution
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:2560 x 1080 pixels
- P56X V7-KL4K3:3840 x 2160 pixels
HD type
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:WFHD
- P56X V7-KL4K3:4K Ultra HD
Native aspect ratio
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:21:9
- P56X V7-KL4K3:16:9
Processor model
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:i7-7820HK
- P56X V7-KL4K3:i7-7700HQ
Processor boost frequency
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:3.9 GHz
- P56X V7-KL4K3:3.8 GHz
Processor frequency
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:2.9 GHz
- P56X V7-KL4K3:2.8 GHz
Processor cache
- Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop:8 MB
- P56X V7-KL4K3:6 MB

Side by side

Differences highlightedShow differences only

Comparison of GX21-71-76LZ, P56X V7-KL4K3
166 specifications	A Acer Predator 21 X GX21-71-76LZ Intel® Core™ i7 i7-7820HK Laptop Model GX21-71-76LZ View product	B GIGABYTE P56X V7-KL4K3 View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Market positioning	Gaming	Gaming
Display4 differ
Display diagonalDiffers	53.3 cm (21")	39.6 cm (15.6")
Display resolutionDiffers	2560 x 1080 pixels	3840 x 2160 pixels
Touchscreen	No	No
HD typeDiffers	WFHD	4K Ultra HD
Panel type	IPS	IPS
LED backlight	Yes	Yes
Native aspect ratioDiffers	21:9	16:9
Dual-screenKnown for one	Unknown — not stated by the source	No
Processor5 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	7th gen Intel® Core™ i7	7th gen Intel® Core™ i7
Processor modelDiffers	i7-7820HK	i7-7700HQ
Processor cores	4	4
Processor threads	8	8
Processor boost frequencyDiffers	3.9 GHz	3.8 GHz
Processor frequencyDiffers	2.9 GHz	2.8 GHz
System bus rate	8 GT/s	8 GT/s
Processor cacheDiffers	8 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-7800 Mobile Series	Intel Core i7-7700 Mobile Series
Processor codename	Kaby Lake	Kaby Lake
Bus type	DMI3	DMI3
Thermal Design Power (TDP)	45 W	45 W
Configurable TDP-down	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 1x8, 2x4, 2x8	1x16, 1x8, 2x4, 2x8
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory3 differ
Internal memoryDiffers	64 GB	16 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	2400 MHz
Memory form factorKnown for one	Unknown — not stated by the source	SO-DIMM
Memory slotsDiffers	4x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	64 GB	32 GB
Storage3 differ
Total storage capacityDiffers	2 TB	1.25 TB
Storage media	HDD+SSD	HDD+SSD
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
SSD capacityDiffers	512 GB	256 GB
Optical drive typeDiffers	No	DVD Super Multi
Card reader integrated	Yes	Yes
Compatible memory cards	SD	SD
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Number of SSDs installedKnown for one	2	Unknown — not stated by the source
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® GTX 1080 SLI	NVIDIA® GeForce® GTX 1070
Discrete graphics card memoryDiffers	16 GB	8 GB
Discrete graphics memory typeDiffers	GDDR5X	GDDR5
On-board graphics card model	Intel® HD Graphics 630	Intel® HD Graphics 630
Maximum on-board graphics card memory	64 GB	64 GB
On-board graphics card base frequency	350 MHz	350 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 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 ID	0x591B	0x591B
CUDAKnown for one	Unknown — not stated by the source	Yes
NVIDIA G-SYNCKnown for one	Unknown — not stated by the source	Yes
NVIDIA GameWorks VRKnown for one	Unknown — not stated by the source	Yes
Audio1 differ
Number of built-in speakersDiffers	4	2
Speaker powerKnown for one	Unknown — not stated by the source	4 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolutionKnown for one	1280 x 720 pixels	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth Low Energy (BLE)Known for one	Unknown — not stated by the source	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	4.2
Ports & interfaces4 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
HDMI versionKnown for one	Unknown — not stated by the source	2.0
DisplayPorts quantityDiffers	1	0
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Thunderbolt ports quantity	0	0
Thunderbolt 3 ports quantityDiffers	0	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Unknown — not stated by the source	Yes
Docking connector	No	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	1	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
Combo headphone/mic portKnown for one	Yes	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® HM175
Keyboardidentical
Pointing device	Touchpad	Touchpad
Keyboard backlit	Yes	Yes
Numeric keypad	Yes	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 10 Home	Windows 10 Home
Operating system architecture	64-bit	64-bit
Processor special features3 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
Graphics & IMC lithography	14 nm	14 nm
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 version	1.00	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)	No	No
Intel Stable Image Platform Program (SIPP) version	0.00	0.00
Intel TSX-NIDiffers	Yes	No
Intel TSX-NI versionDiffers	1.00	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)	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)	Yes	Yes
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 Cache	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	97464	97185
Processor package size	42 x 28 mm	42 x 28 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
Intel HD GraphicsKnown for one	Yes	Unknown — not stated by the source
Battery2 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Battery capacityDiffers	88 Wh	91 Wh
Number of battery cellsKnown for one	8	Unknown — not stated by the source
Power1 differ
AC adapter powerDiffers	330 W	200 W
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Weight & dimensions4 differ
WeightDiffers	8.5 kg	2.6 kg
WidthDiffers	568 mm	382.8 mm
DepthDiffers	314.5 mm	270 mm
HeightDiffers	83.3 mm	30 mm
Height (front)Known for one	6.88 cm	Unknown — not stated by the source
Height (rear)Known for one	8.32 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Power cord includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
3DKnown for one	Unknown — not stated by the source	No

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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