All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 laptops

Acer Predator 21 X GX21-71-746S Intel® Core™ i7 i7-7820HK Laptop vs Dell Precision M5520 Intel® Core™ i7 i7-7820HQ Mobile workstation

Add a product
  • 140specifications compared
  • 37differ
  • 103identical
  • 57known for one product only

Key differences

  • Product type
    • Laptop
    • Mobile workstation
  • Product colour
    • Black
    • Black, Silver
  • Display diagonal
    • 53.3 cm (21")
    • 39.6 cm (15.6")
  • Display resolution
    • 2560 x 1080 pixels
    • 3840 x 2160 pixels
  • Touchscreen
    • No
    • Yes
  • HD type
    • WFHD
    • 4K Ultra HD
  • Native aspect ratio
    • 21:9
    • 16:9
  • Processor model
    • i7-7820HK
    • i7-7820HQ

Side by side

Differences highlightedShow differences only
197 specifications
A

Acer

Predator 21 X GX21-71-746S Intel® Core™ i7 i7-7820HK Laptop

Model GX21-71-746S

View product
B

Dell

Precision M5520 Intel® Core™ i7 i7-7820HQ Mobile workstation

Model M5520

View product
Design2 differ
Product typeDiffersLaptopMobile workstation
Product colourDiffersBlackBlack, Silver
Form factorClamshellClamshell
Market positioningKnown for oneGaming
Display5 differ
Display diagonalDiffers53.3 cm (21")39.6 cm (15.6")
Display resolutionDiffers2560 x 1080 pixels3840 x 2160 pixels
TouchscreenDiffersNoYes
HD typeDiffersWFHD4K Ultra HD
LED backlightYesYes
Native aspect ratioDiffers21:916:9
Display brightnessKnown for one400 cd/m²
Dual-screenKnown for oneNo
Panel typeKnown for oneIPS
Processor1 differ
Processor manufacturerIntelIntel
Processor familyIntel® Core™ i7Intel® Core™ i7
Processor generation7th gen Intel® Core™ i77th gen Intel® Core™ i7
Processor modelDiffersi7-7820HKi7-7820HQ
Processor cores44
Processor threads88
Processor boost frequency3.9 GHz3.9 GHz
Processor frequency2.9 GHz2.9 GHz
Processor cache8 MB8 MB
Processor cache typeSmart CacheSmart Cache
Processor lithography14 nm14 nm
Processor operating modes64-bit64-bit
Processor seriesIntel Core i7-7800 Mobile SeriesIntel Core i7-7800 Mobile Series
Processor codenameKaby LakeKaby Lake
Bus typeDMI3DMI3
Thermal Design Power (TDP)45 W45 W
Configurable TDP-down35 W35 W
Tjunction100 °C100 °C
Maximum number of PCI Express lanes1616
PCI Express configurations1x16, 1x8, 2x4, 2x81x16, 1x8, 2x4, 2x8
PCI Express slots version3.03.0
ECC supported by processorNoNo
System bus rateKnown for one8 GT/s
Memory3 differ
Internal memoryDiffers64 GB16 GB
Internal memory typeDDR4-SDRAMDDR4-SDRAM
Memory form factorSO-DIMMSO-DIMM
Memory slotsDiffers4x SO-DIMM2x SO-DIMM
Maximum internal memoryDiffers64 GB32 GB
Maximum internal memory (64-bit)Known for one32 GB
Memory layout (slots x size)Known for one4 x 16 GB
Storage4 differ
Total storage capacityDiffers2 TB512 GB
Storage mediaDiffersHDD+SSDSSD
Number of SSDs installedDiffers21
SSD capacity512 GB512 GB
Optical drive typeNoNo
Card reader integratedYesYes
Compatible memory cardsDiffersSDSD, SDHC, SDXC
Number of HDDs installedKnown for one1
HDD capacityKnown for one1 TB
HDD interfaceKnown for oneSATA
HDD speedKnown for one7200 RPM
HDD sizeKnown for one2.5"
Graphics3 differ
On-board graphics cardYesYes
Discrete graphics cardYesYes
Discrete graphics card modelDiffersNVIDIA® GeForce® GTX 1080 SLINVIDIA® Quadro® M1200
Discrete graphics card memoryDiffers16 GB4 GB
Discrete graphics memory typeDiffersGDDR5XGDDR5
On-board graphics card modelIntel® HD Graphics 630Intel® HD Graphics 630
Maximum on-board graphics card memory64 GB64 GB
On-board graphics card base frequency350 MHz350 MHz
On-board graphics card dynamic frequency (max)1100 MHz1100 MHz
On-board graphics card DirectX version12.012.0
On-board graphics card OpenGL version4.44.4
On-board graphics card ID0x591B0x591B
Number of discrete graphics cards installedKnown for one1
Number of discrete graphics cards supportedKnown for one1
CUDAKnown for oneYes
CUDA coresKnown for one640
NVIDIA G-SYNCKnown for oneNo
NVIDIA GameWorks VRKnown for oneNo
On-board graphics card familyKnown for oneIntel® HD Graphics
Graphics card Open GL supportKnown for oneYes
Audioidentical
Built-in microphoneYesYes
Number of built-in speakersKnown for one4
Cameraidentical
Front cameraYesYes
Front camera resolution (numeric)Known for one0.92 MP
Front camera resolution1280 x 720 pixels1280 x 720 pixels
Video capturing speedKnown for one30 fps
Front camera signal formatKnown for one720p
Optical driveidentical
LightScribeKnown for oneNo
Network1 differ
Wi-FiYesYes
Ethernet LANDiffersYesNo
BluetoothYesYes
Wi-Fi standardsKnown for oneWi-Fi 5 (802.11ac)
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Ports & interfaces5 differ
USB 2.0 ports quantity00
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers42
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers10
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Ethernet LAN (RJ-45) portsDiffers10
HDMI ports quantity11
HDMI versionKnown for one1.4
DisplayPorts quantityDiffers10
DVI portNoNo
VGA (D-Sub) ports quantity00
Thunderbolt ports quantity00
Thunderbolt 3 ports quantityDiffers01
Thunderbolt™ 3 TechnologyKnown for oneYes
Combo headphone/mic portYesYes
Docking connectorNoNo
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one2
Keyboard1 differ
Pointing deviceTouchpadTouchpad
Keyboard backlitYesYes
Numeric keypadDiffersYesNo
Full-size keyboardYesYes
Windows keysYesYes
Keyboard layoutKnown for oneQWERTY
Keyboard languageKnown for oneUK English
Software1 differ
Operating system installedDiffersWindows 10 HomeWindows 10 Pro
Operating system architecture64-bit64-bit
Drivers includedKnown for oneYes
Processor special features4 differ
Intel® Wireless Display (Intel® WiDi)YesYes
CPU configuration (max)11
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Graphics & IMC lithography14 nm14 nm
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyYesYes
Intel Enhanced Halt StateYesYes
Intel Flex Memory AccessYesYes
Intel HD GraphicsYesYes
Intel Identity Protection Technology version1.001.00
Intel Secure Key Technology version1.001.00
Intel Small Business Advantage (SBA) version1.001.00
Intel Smart Response Technology version1.001.00
Intel Software Guard Extensions (Intel SGX)YesYes
Intel Stable Image Platform Program (SIPP)DiffersNoYes
Intel Stable Image Platform Program (SIPP) versionDiffers0.001.00
Intel TSX-NIYesYes
Intel TSX-NI version1.001.00
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Clear Video HD Technology (Intel® CVT HD)YesYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® InTru™ 3D TechnologyYesYes
Intel® My WiFi Technology (Intel® MWT)YesYes
Intel® OS GuardYesYes
Intel® Quick Sync Video TechnologyYesYes
Intel® Secure KeyYesYes
Intel® Smart CacheYesYes
Intel® Smart Response TechnologyYesYes
Intel® Turbo Boost Technology2.02.0
Processor ARK IDDiffers9746497496
Processor package size42 x 28 mm42 x 28 mm
Supported instruction setsAVX 2.0, SSE4.1, SSE4.2AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesYesYes
Conflict-Free processorYesYes
Battery2 differ
Battery technologyLithium-Ion (Li-Ion)Lithium-Ion (Li-Ion)
Number of battery cellsDiffers86
Battery capacityDiffers88 Wh97 Wh
Battery voltageKnown for one11.4 V
Power1 differ
AC adapter powerDiffers330 W130 W
AC adapter frequency50 - 60 Hz50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
AC adapter output currentKnown for one6.67 A
AC adapter output voltageKnown for one19.5 V
DC-in jackYesYes
Securityidentical
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
Password protectionKnown for oneYes
Password protection typeKnown for oneBIOS, HDD, Supervisor, User
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one10 - 95%
Operating altitudeKnown for one-15.2 - 3048 m
Non-operating altitudeKnown for one-15.2 - 10668 m
Operating shockKnown for one110 G
Non-operating shockKnown for one160 G
Operating vibrationKnown for one0.66 G
Non-operating vibrationKnown for one1.3 G
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR
Weight & dimensions4 differ
WeightDiffers8.5 kg1.78 kg
WidthDiffers568 mm357 mm
DepthDiffers314.5 mm235.3 mm
HeightDiffers83.3 mm11.1 mm
Height (front)Known for one6.88 cm
Height (rear)Known for one8.32 cm
Packaging contentidentical
AC adapter includedYesYes
ManualYesYes
Power cord includedYesYes
Quick start guideKnown for oneYes
Warranty cardKnown for oneYes
Cables includedKnown for oneAC
Performanceidentical
Motherboard chipsetKnown for oneIntel® CM238

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.

More laptop comparisons

All laptop comparisons