Product comparison · 2 laptops

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

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

Key differences

Product colour
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:Black, Silver
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:Black
Display diagonal
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:35.6 cm (14")
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:39.6 cm (15.6")
Display resolution
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:1366 x 768 pixels
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:1920 x 1080 pixels
HD type
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:Not supported
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:Full HD
Pixel pitch
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:0.2265 x 0.2265 mm
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:0.897 x 0.897 mm
Processor generation
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:6th gen Intel® Core™ i7
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:4th gen Intel® Core™ i7
Processor model
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:I7-6500U
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:i7-4720HQ
Processor cores
- Inspiron 5457 Intel® Core™ i7 I7-6500U Laptop:2
- Inspiron 7557 Intel® Core™ i7 i7-4720HQ Laptop:4

Side by side

Differences highlightedShow differences only

Comparison of 5457, 7557
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 type	Laptop	Laptop
Product colourDiffers	Black, Silver	Black
Form factor	Clamshell	Clamshell
Display4 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD typeDiffers	Not supported	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Pixel pitchDiffers	0.2265 x 0.2265 mm	0.897 x 0.897 mm
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Processor18 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generationDiffers	6th gen Intel® Core™ i7	4th gen Intel® Core™ i7
Processor modelDiffers	I7-6500U	i7-4720HQ
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3.1 GHz	3.6 GHz
Processor frequencyDiffers	2.5 GHz	2.6 GHz
System bus rateDiffers	4 GT/s	5 GT/s
Processor cacheDiffers	4 MB	6 MB
Processor cache typeDiffers	Smart Cache	L3
Processor socketDiffers	LGA 1356 (Socket B2)	BGA 1364
Processor lithographyDiffers	14 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-6500 Mobile series	Intel Core i7-4700 Mobile series
Processor codenameDiffers	Skylake	Haswell
Bus typeDiffers	OPI	DMI2
FSB Parity	No	No
SteppingDiffers	D1	C0
Thermal Design Power (TDP)Differs	15 W	47 W
Configurable TDP-up frequencyKnown for one	2.6 GHz	Unknown — not stated by the source
Configurable TDP-upKnown for one	25 W	Unknown — not stated by the source
Configurable TDP-downKnown for one	7.5 W	Unknown — not stated by the source
Configurable TDP-down frequencyKnown for one	0.8 GHz	Unknown — not stated by the source
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	12	16
PCI Express configurationsDiffers	1x4, 4x1	1x16, 2x8, 1x8+2x4
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory1 differ
Internal memory	8 GB	8 GB
Internal memory type	DDR3L-SDRAM	DDR3L-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	2 x 4 GB	1 x 8 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	16 GB	16 GB
Maximum internal memory (64-bit)	16 GB	16 GB
Storage2 differ
Total storage capacity	1 TB	1 TB
Storage mediaDiffers	Hybrid-HDD	HDD
HDD interfaceKnown for one	SATA III	Unknown — not stated by the source
HDD speed	5400 RPM	5400 RPM
Hybrid-HDD cache typeKnown for one	Flash	Unknown — not stated by the source
Hybrid-HDD capacityKnown for one	1 TB	Unknown — not stated by the source
Hybrid-HDD cache memoryKnown for one	8 GB	Unknown — not stated by the source
HDD size	2.5"	2.5"
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MS PRO, Memory Stick (MS), SD, SDHC	MMC, SD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	1 TB
Graphics8 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® 930M	NVIDIA® GeForce® GTX 960M
Discrete graphics card memory	4 GB	4 GB
Discrete graphics memory typeDiffers	GDDR3	GDDR5
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 520	Intel® HD Graphics 4600
Maximum on-board graphics card memory	1.74 GB	1.74 GB
On-board graphics card base frequencyDiffers	300 MHz	400 MHz
On-board graphics card dynamic frequency (max)Differs	1050 MHz	1200 MHz
On-board graphics card DirectX versionDiffers	12.0	11.2/12
On-board graphics card OpenGL versionDiffers	4.4	4.3
On-board graphics card IDDiffers	1916	0x416
Number of discrete graphics cards installed	1	1
Number of discrete graphics cards supported	1	1
Graphics card Open GL support	Yes	Yes
CUDA	Yes	Yes
NVIDIA G-SYNCKnown for one	No	Unknown — not stated by the source
NVIDIA GameWorks VRKnown for one	No	Unknown — not stated by the source
CUDA coresKnown for one	Unknown — not stated by the source	640
Audioidentical
Audio system	MaxxAudio Pro	MaxxAudio Pro
Number of built-in speakers	2	2
Speakers manufacturer	Waves	Waves
Speaker power	2 W	2 W
Built-in microphone	Yes	Yes
Built-in subwooferKnown for one	Unknown — not stated by the source	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)	0.92 MP	0.92 MP
Front camera resolution	1280 x 720 pixels	1280 x 720 pixels
Video capturing speed	30 fps	30 fps
Optical driveidentical
LightScribe	No	No
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standards	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	1	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
HDMI version	1.4a	1.4a
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone in	No	No
Docking connector	No	No
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
USB Sleep-and-ChargeKnown for one	Unknown — not stated by the source	Yes
USB Sleep-and-Charge portsKnown for one	Unknown — not stated by the source	1
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	No	Yes
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Full-size keyboard	Yes	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architecture	64-bit	64-bit
Drivers included	Yes	Yes
Processor special features12 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 lithographyKnown for one	14 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	Yes	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory Access	No	No
Intel Flex Memory AccessDiffers	Yes	No
Intel HD Graphics	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Response Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Software Guard Extensions (Intel SGX)Known for one	Yes	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Known for one	No	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP) versionKnown for one	0.00	Unknown — not stated by the source
Intel TSX-NI	No	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® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Built-in Visuals Technology	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	Yes	No
Intel® OS GuardKnown for one	Yes	Unknown — not stated by the source
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Yes	Unknown — not stated by the source
Intel® Smart Response TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Virtualization Technology (Intel® VT)	VT-x, VT-d	VT-x, VT-d
Processor ARK IDDiffers	88194	78934
Processor codeDiffers	SR2EZ	SR1Q8
Processor package sizeDiffers	42 X 24 mm	37.5 x 32 x 1.6 mm
Supported instruction setsDiffers	SSE4.1, SSE4.2, AVX 2.0	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Battery2 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	3	6
Battery capacityDiffers	44 Wh	74 Wh
Battery voltage	11.1 V	11.1 V
Battery recharge time	4 h	4 h
Battery life (max)Known for one	Unknown — not stated by the source	7.51 h
Power2 differ
AC adapter powerDiffers	65 W	130 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output currentDiffers	3.34 A	6.7 A
AC adapter output voltage	19.5 V	19.5 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Password protection	Yes	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Sustainabilityidentical
Sustainability certificates	EPEAT Silver, ENERGY STAR	EPEAT Silver, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	2.02 kg	2.59 kg
WidthDiffers	342 mm	383 mm
DepthDiffers	246 mm	265 mm
HeightDiffers	21.6 mm	25.3 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord included	Yes	Yes
Warranty card	Yes	Yes
Other featuresidentical
3D	No	No
Intel segment tagging	Home office	Home office
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 65 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 95%
Operating altitudeKnown for one	Unknown — not stated by the source	-15.2 - 3048 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-15.2 - 10668 m
Operating shockKnown for one	Unknown — not stated by the source	110 G
Non-operating shockKnown for one	Unknown — not stated by the source	160 G
Operating vibrationKnown for one	Unknown — not stated by the source	0.66 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	1.3 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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