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Product comparison · 2 laptops

Dell XPS 14-l421x Intel® Core™ i7 i7-3517M Laptop vs Dell Inspiron 3520 Intel® Celeron® B820

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  • 89specifications compared
  • 46differ
  • 43identical
  • 85known for one product only

Key differences

  • Product colour
    • Aluminium, Silver
    • Black
  • Display diagonal
    • 35.6 cm (14")
    • 39.6 cm (15.6")
  • Display resolution
    • 1600 x 900 pixels
    • 1366 x 768 pixels
  • Processor family
    • Intel® Core™ i7
    • Intel® Celeron®
  • Processor model
    • i7-3517M
    • B820
  • Processor threads
    • 4
    • 2
  • Processor frequency
    • 1.9 GHz
    • 1.7 GHz
  • Processor cache
    • 4 MB
    • 2 MB

Side by side

Differences highlightedShow differences only
174 specifications
A

Dell

XPS 14-l421x Intel® Core™ i7 i7-3517M Laptop

Model 14-l421x

View product
B

Dell

Inspiron 3520 Intel® Celeron® B820

Model 3520

View product
Design1 differ
Product colourDiffersAluminium, SilverBlack
Product typeKnown for oneLaptop
Display2 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Display resolutionDiffers1600 x 900 pixels1366 x 768 pixels
LED backlightKnown for oneYes
HD typeKnown for oneHD+
Processor7 differ
Processor familyDiffersIntel® Core™ i7Intel® Celeron®
Processor modelDiffersi7-3517MB820
Processor threadsDiffers42
Processor frequencyDiffers1.9 GHz1.7 GHz
Processor cacheDiffers4 MB2 MB
Processor cache typeDiffersL3L2
Processor socketDiffersBGA 1023rPGA988B
Processor lithographyKnown for one32 nm
Processor operating modesKnown for one64-bit
Processor seriesKnown for oneIntel Celeron Processor B800 Series for Mobile
Processor codenameKnown for oneSandy Bridge
Bus typeKnown for oneDMI
FSB ParityKnown for oneNo
Thermal Design Power (TDP)Known for one35 W
TjunctionKnown for one100 °C
Maximum number of PCI Express lanesKnown for one16
PCI Express configurationsKnown for one1x16, 2x8, 1x8+2x4
PCI Express slots versionKnown for one2.0
CPU multiplier (bus/core ratio)Known for one17
ECC supported by processorKnown for oneNo
Processor generationKnown for one3rd gen Intel® Core™ i7
Processor boost frequencyKnown for one3 GHz
Memory3 differ
Internal memoryDiffers8 GB4 GB
Memory clock speedKnown for one1600 MHz
Memory slotsDiffers1x SO-DIMM2x SO-DIMM
Maximum internal memoryDiffers8 GB6 GB
Memory layout (slots x size)Known for one1 x 8 GB
Memory slots (available)Known for one0
Storage3 differ
Total storage capacityDiffers532 GB500 GB
Storage mediaDiffersHDD+SSDHDD
HDD interfaceKnown for oneSATA
Optical drive typeDiffersNoDVD Super Multi
Compatible memory cardsKnown for oneMemory Stick (MS), MMC, SD
HDD speedKnown for one5400 RPM
HDD sizeKnown for one2.5"
Number of SSDs installedKnown for one1
SSD capacityKnown for one32 GB
Graphics3 differ
Discrete graphics cardDiffersYesNo
Discrete graphics card modelDiffersNVIDIA® GeForce® GT 630MNot available
Graphics card familyKnown for oneIntel
On-board graphics card modelDiffersIntel® HD Graphics 4000Intel® HD Graphics
On-board graphics card base frequencyKnown for one650 MHz
On-board graphics card dynamic frequency (max)Known for one1050 MHz
Number of discrete graphics cardsKnown for one1
Audioidentical
Audio systemKnown for oneHD
Speaker powerKnown for one2 W
Camera1 differ
Front camera resolution (numeric)Differs1.3 MP1 MP
Front camera resolutionKnown for one1280 x 720 pixels
Network3 differ
Networking featuresDiffersGigabit EthernetFast Ethernet, WLAN
Wi-Fi standardsDiffers802.11a, 802.11g, Wi-Fi 4 (802.11n)802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesDiffers10,100,1000 Mbit/s10,100 Mbit/s
Cabling technologyKnown for one10/100Base-T(X)
Integrated 4G WiMAXKnown for oneNo
Bluetooth versionKnown for one4.0
Networking standardsKnown for oneIEEE 802.11a, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers03
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers20
VGA (D-Sub) ports quantityDiffers01
Headphone outputsDiffers01
Microphone inDiffersNoYes
Headphone connectivityKnown for one3.5 mm
Microphone connectivityKnown for one3.5 mm
Mini DisplayPorts quantityKnown for one1
Combo headphone/mic portKnown for oneYes
Performance1 differ
Motherboard chipsetDiffersIntel HM77 ExpressIntel® HM75 Express
Keyboardidentical
Windows keysKnown for oneYes
Spill-resistant keyboardKnown for oneYes
Full-size keyboardKnown for oneYes
Software1 differ
Operating system installedDiffersWindows 7 ProfessionalWindows 7 Home Premium
Drivers includedKnown for oneYes
Processor special features9 differ
Intel® Wireless Display (Intel® WiDi)DiffersYesNo
CPU configuration (max)Known for one1
Embedded options availableKnown for oneNo
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Execute Disable BitKnown for oneYes
Graphics & IMC lithographyKnown for one32 nm
Idle StatesKnown for oneYes
Intel 64Known for oneYes
Intel Clear Video TechnologyKnown for oneNo
Intel Demand Based SwitchingKnown for oneNo
Intel Dual Display Capable TechnologyKnown for oneYes
Intel Enhanced Halt StateKnown for oneYes
Intel FDI TechnologyKnown for oneYes
Intel Fast Memory AccessKnown for oneYes
Intel Flex Memory AccessKnown for oneYes
Intel Rapid Storage TechnologyKnown for oneNo
Intel Trusted Execution TechnologyKnown for oneNo
Intel VT-x with Extended Page Tables (EPT)Known for oneNo
Intel Virtualization Technology (VT-x)Known for oneYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® AES New Instructions (Intel® AES-NI)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)DiffersYesNo
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersYesNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersYesNo
Intel® InTru™ 3D TechnologyDiffersYesNo
Intel® Insider™DiffersYesNo
Intel® My WiFi Technology (Intel® MWT)DiffersYesNo
Intel® Quick Sync Video TechnologyDiffersYesNo
Intel® Turbo Boost TechnologyDiffers2.0No
Processor ARK IDKnown for one67193
Processor package sizeKnown for one37.5x37.5 (rPGA988B)
Supported instruction setsKnown for oneSSE4.x
Thermal Monitoring TechnologiesKnown for oneYes
Conflict-Free processorKnown for oneNo
Battery3 differ
Battery technologyDiffersLithium Polymer (LiPo)Lithium-Ion (Li-Ion)
Number of battery cellsDiffers86
Battery capacityDiffers69 Wh48 Wh
Power1 differ
AC adapter powerDiffers90 W65 W
Securityidentical
HDD user passwordKnown for oneYes
Weight & dimensions3 differ
WeightDiffers2.1 kg2.4 kg
WidthDiffers335.8 mm376 mm
DepthDiffers233 mm260 mm
Height (front)Known for one3.15 cm
Height (rear)Known for one3.45 cm
HeightKnown for one20.7 mm
Width (imperial)Known for one33.5 cm (13.2")
Depth (imperial)Known for one23.4 cm (9.2")
Height (imperial)Known for one2.06 cm (0.81")
Packaging contentidentical
Warranty cardKnown for oneYes
Cables includedKnown for oneAC
Other featuresidentical
Number of products includedKnown for one1 pc(s)
Power supply typeKnown for oneAC/DC
Intel segment taggingKnown for oneHome office
Optical driveidentical
LightScribeKnown for oneNo

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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