Product comparison · 2 laptops

Dell 15R (1521) vs Dell 15R (1522)

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  • 163specifications compared
  • 19differ
  • 144identical
  • 1known for one product only

Key differences

  • Processor family
    • 15R (1521):Intel® Core™ i7
    • 15R (1522):Intel® Core™ i5
  • Processor generation
    • 15R (1521):4th gen Intel® Core™ i7
    • 15R (1522):4th gen Intel® Core™ i5
  • Processor model
    • 15R (1521):i7-4500U
    • 15R (1522):i5-4200U
  • Processor boost frequency
    • 15R (1521):3 GHz
    • 15R (1522):2.6 GHz
  • Processor frequency
    • 15R (1521):1.8 GHz
    • 15R (1522):1.6 GHz
  • Processor cache
    • 15R (1521):4 MB
    • 15R (1522):3 MB
  • PCI Express configurations
    • 15R (1521):2x4
    • 15R (1522):1x4, 2x4
  • Internal memory
    • 15R (1521):8 GB
    • 15R (1522):6 GB

Side by side

Differences highlightedShow differences only (on)
Comparison of 15R (1521), 15R (1522)
164 specifications
Processor8 differ
Processor familyDiffersIntel® Core™ i7Intel® Core™ i5
Processor generationDiffers4th gen Intel® Core™ i74th gen Intel® Core™ i5
Processor modelDiffersi7-4500Ui5-4200U
Processor boost frequencyDiffers3 GHz2.6 GHz
Processor frequencyDiffers1.8 GHz1.6 GHz
Processor cacheDiffers4 MB3 MB
Processor seriesDiffersIntel Core i7-4500 Mobile seriesIntel Core i5-4200 Mobile series
PCI Express configurationsDiffers2x41x4, 2x4
Memory2 differ
Internal memoryDiffers8 GB6 GB
Memory layout (slots x size)Differs2 x 4 GB1 x 2 + 1 x 4 GB
Storage3 differ
Total storage capacityDiffers1 TB750 GB
HDD capacityDiffers1 TB750 GB
Compatible memory cardsDiffersMemory Stick (MS), MMC, MMC+, MS PRO, MSXC, SD, SDHC, SDXCMemory Stick (MS), MMC, MMC+, MS PRO, SD, SDHC, SDXC
Graphics1 differ
On-board graphics card dynamic frequency (max)Differs1100 MHz1000 MHz
Processor special features5 differ
Intel FDI TechnologyDiffersYesNo
Intel® Matrix Storage Technology (Intel® MST)DiffersYesNo
Processor ARK IDDiffers7546075459
Processor codeDiffersSR16ZSR170
Supported instruction setsDiffersAVX 2.0, SSE4.1, SSE4.2AVX 2.0
Other featuresidentical
64-bit computingKnown for oneYesUnknown — 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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