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Product comparison · 2 laptops

Dell Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop vs Dell Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop

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  • 176specifications compared
  • 58differ
  • 118identical
  • 40known for one product only

Key differences

  • Product colour
    • Black, Silver
    • Black
  • Display diagonal
    • 35.6 cm (14")
    • 39.6 cm (15.6")
  • Display resolution
    • 1366 x 768 pixels
    • 1920 x 1080 pixels
  • HD type
    • Not supported
    • Full HD
  • Pixel pitch
    • 0.2265 x 0.2265 mm
    • 0.897 x 0.897 mm
  • Processor generation
    • 6th gen Intel® Core™ i7
    • 4th gen Intel® Core™ i7
  • Processor model
    • I7-6500U
    • i7-4720HQ
  • Processor cores
    • 2
    • 4

Side by side

Differences highlightedShow differences only
216 specifications
A

Dell

Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop

Model 5457

View product
B

Dell

Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop

Model 7557

View product
Design1 differ
Product colourDiffersBlack, SilverBlack
Display4 differ
Display diagonalDiffers35.6 cm (14")39.6 cm (15.6")
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeDiffersNot supportedFull HD
Pixel pitchDiffers0.2265 x 0.2265 mm0.897 x 0.897 mm
Display surfaceKnown for oneMatt
Processor18 differ
Processor generationDiffers6th gen Intel® Core™ i74th gen Intel® Core™ i7
Processor modelDiffersI7-6500Ui7-4720HQ
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers3.1 GHz3.6 GHz
Processor frequencyDiffers2.5 GHz2.6 GHz
System bus rateDiffers4 GT/s5 GT/s
Processor cacheDiffers4 MB6 MB
Processor cache typeDiffersSmart CacheL3
Processor socketDiffersLGA 1356 (Socket B2)BGA 1364
Processor lithographyDiffers14 nm22 nm
Processor seriesDiffersIntel Core i7-6500 Mobile seriesIntel Core i7-4700 Mobile series
Processor codenameDiffersSkylakeHaswell
Bus typeDiffersOPIDMI2
SteppingDiffersD1C0
Thermal Design Power (TDP)Differs15 W47 W
Configurable TDP-up frequencyKnown for one2.6 GHz
Configurable TDP-upKnown for one25 W
Configurable TDP-downKnown for one7.5 W
Configurable TDP-down frequencyKnown for one0.8 GHz
Maximum number of PCI Express lanesDiffers1216
PCI Express configurationsDiffers1x4, 4x11x16, 2x8, 1x8+2x4
Memory1 differ
Memory layout (slots x size)Differs2 x 4 GB1 x 8 GB
Storage2 differ
Storage mediaDiffersHybrid-HDDHDD
HDD interfaceKnown for oneSATA III
Hybrid-HDD cache typeKnown for oneFlash
Hybrid-HDD capacityKnown for one1 TB
Hybrid-HDD cache memoryKnown for one8 GB
Compatible memory cardsDiffersMS PRO, Memory Stick (MS), SD, SDHCMMC, SD
Number of HDDs installedKnown for one1
HDD capacityKnown for one1 TB
Graphics8 differ
Discrete graphics card modelDiffersNVIDIA® GeForce® 930MNVIDIA® GeForce® GTX 960M
Discrete graphics memory typeDiffersGDDR3GDDR5
On-board graphics card modelDiffersIntel® HD Graphics 520Intel® HD Graphics 4600
On-board graphics card base frequencyDiffers300 MHz400 MHz
On-board graphics card dynamic frequency (max)Differs1050 MHz1200 MHz
On-board graphics card DirectX versionDiffers12.011.2/12
On-board graphics card OpenGL versionDiffers4.44.3
On-board graphics card IDDiffers19160x416
NVIDIA G-SYNCKnown for oneNo
NVIDIA GameWorks VRKnown for oneNo
CUDA coresKnown for one640
Audioidentical
Built-in subwooferKnown for oneYes
Network1 differ
Ethernet LAN data ratesDiffers10,100 Mbit/s10,100,1000 Mbit/s
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers10
ExpressCard slotDiffersYesNo
USB Sleep-and-ChargeKnown for oneYes
USB Sleep-and-Charge portsKnown for one1
Keyboard1 differ
Numeric keypadDiffersNoYes
Spill-resistant keyboardKnown for oneYes
Processor special features12 differ
Graphics & IMC lithographyKnown for one14 nm
Intel Clear Video TechnologyDiffersYesNo
Intel FDI TechnologyDiffersNoYes
Intel Flex Memory AccessDiffersYesNo
Intel Small Business Advantage (SBA) versionKnown for one1.00
Intel Smart Response Technology versionKnown for one1.00
Intel Software Guard Extensions (Intel SGX)Known for oneYes
Intel Stable Image Platform Program (SIPP)Known for oneNo
Intel Stable Image Platform Program (SIPP) versionKnown for one0.00
Intel TSX-NI versionDiffers1.000.00
Intel® Anti-Theft Technology (Intel® AT)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)DiffersYesNo
Intel® My WiFi Technology (Intel® MWT)DiffersYesNo
Intel® OS GuardKnown for oneYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Intel® Smart Response TechnologyKnown for oneYes
Intel® Turbo Boost TechnologyDiffers2.0No
Processor ARK IDDiffers8819478934
Processor codeDiffersSR2EZSR1Q8
Processor package sizeDiffers42 X 24 mm37.5 x 32 x 1.6 mm
Supported instruction setsDiffersSSE4.1, SSE4.2, AVX 2.0AVX 2.0, SSE4.1, SSE4.2
Intel® Smart CacheKnown for oneYes
Battery2 differ
Number of battery cellsDiffers36
Battery capacityDiffers44 Wh74 Wh
Battery life (max)Known for one7.51 h
Power2 differ
AC adapter powerDiffers65 W130 W
AC adapter output currentDiffers3.34 A6.7 A
Securityidentical
Cable lock slot typeKnown for oneKensington
Weight & dimensions4 differ
WeightDiffers2.02 kg2.59 kg
WidthDiffers342 mm383 mm
DepthDiffers246 mm265 mm
HeightDiffers21.6 mm25.3 mm
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 35 °C
Storage temperature (T-T)Known for one-40 - 65 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one0 - 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

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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