Product comparison · 2 laptops

Dell Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop vs Dell Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop

154specifications compared
12differ
142identical
51known for one product only

Key differences

Product colour
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:Black
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:Graphite, Silver
Display diagonal
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:43.9 cm (17.3")
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:39.6 cm (15.6")
Display resolution
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:1600 x 900 pixels
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:1366 x 768 pixels
HD type
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:HD+
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:HD
Maximum internal memory
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:8 GB
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:16 GB
Maximum internal memory (64-bit)
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:8 GB
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:16 GB
Optical drive type
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:DVD±RW
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:DVD Super Multi DL
Audio system
- Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop:Waves MaxxAudio 4
- Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop:MaxxAudio 4

Side by side

Differences highlightedShow differences only

Comparison of 3721, 5521
205 specifications	A Dell Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop Model 3721 View product	B Dell Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop Model 5521 View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Black	Graphite, Silver
Form factor	Clamshell	Clamshell
Display3 differ
Display diagonalDiffers	43.9 cm (17.3")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
Touchscreen	No	No
HD typeDiffers	HD+	HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Display brightnessKnown for one	200 cd/m²	Unknown — not stated by the source
Contrast ratio (typical)Known for one	300:1	Unknown — not stated by the source
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	3rd gen Intel® Core™ i7	3rd gen Intel® Core™ i7
Processor model	i7-3517U	i7-3517U
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	3 GHz	3 GHz
Processor frequency	1.9 GHz	1.9 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	4 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1023	BGA 1023
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i7-3500 Mobile series	Intel Core i7-3500 Mobile series
Processor codename	Ivy Bridge	Ivy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	L1	L1
Thermal Design Power (TDP)	17 W	17 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x8, 1x16, 2x4, 2x8	1x8, 1x16, 2x4, 2x8
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)	19	19
ECC supported by processor	No	No
Memory2 differ
Internal memory	8 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory form factorKnown for one	Unknown — not stated by the source	SO-DIMM
Memory layout (slots x size)	2 x 4 GB	2 x 4 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	8 GB	16 GB
Maximum internal memory (64-bit)Differs	8 GB	16 GB
Storage1 differ
Total storage capacity	1 TB	1 TB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Optical drive typeDiffers	DVD±RW	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cards	Memory Stick (MS), MMC, MMC+, MS PRO, MSXC, SD, SDHC, SDXC	Memory Stick (MS), MMC, MMC+, MS PRO, MSXC, SD, SDHC, SDXC
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card model	AMD Radeon HD 8750M	AMD Radeon HD 8750M
Discrete graphics card memory	2 GB	2 GB
Discrete graphics memory type	GDDR5	GDDR5
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 4000	Intel® HD Graphics 4000
On-board graphics card base frequency	350 MHz	350 MHz
On-board graphics card dynamic frequency (max)	1150 MHz	1150 MHz
On-board graphics card ID	0x166	0x166
Number of discrete graphics cards installed	1	1
Audio1 differ
Audio systemDiffers	Waves MaxxAudio 4	MaxxAudio 4
Number of built-in speakers	2	2
Speakers manufacturerKnown for one	Unknown — not stated by the source	Waves
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)	1 MP	1 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Optical driveidentical
Disc types supportedKnown for one	Unknown — not stated by the source	CD, DVD
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100 Mbit/s	10,100 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Data networkKnown for one	Unknown — not stated by the source	Not supported
Networking standardsDiffers	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3u	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
4G WiMAXKnown for one	Unknown — not stated by the source	No
Integrated 4G WiMAX	Yes	Yes
Bluetooth Low Energy (BLE)Known for one	Yes	Unknown — not stated by the source
Cabling technologyKnown for one	10/100Base-T(X)	Unknown — not stated by the source
Built-in Wi-Fi switchKnown for one	Yes	Unknown — not stated by the source
Ports & interfacesidentical
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
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 quantityKnown for one	Unknown — not stated by the source	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 slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
eSATA/USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Performanceidentical
Motherboard chipset	Intel HM76 Express	Intel HM76 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	Yes	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Windows keys	Yes	Yes
Island-style keyboardKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 8	Windows 8
Operating system architecture	64-bit	64-bit
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Processor special featuresidentical
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 lithography	22 nm	22 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	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 Smart Connect TechnologyKnown for one	Unknown — not stated by the source	No
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® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	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® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)	No	No
Intel® Smart Cache	Yes	Yes
Intel® Smart Response Technology	No	No
Intel® Turbo Boost Technology	2.0	2.0
Intel® Virtualization Technology (Intel® VT)Known for one	Unknown — not stated by the source	VT-d, VT-x
Processor ARK ID	65714	65714
Processor code	SR0N6	SR0N6
Processor package size	31.0 x 24.0 mm	31.0 x 24.0 mm
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Battery capacityKnown for one	Unknown — not stated by the source	65 Wh
Battery voltageKnown for one	Unknown — not stated by the source	11.1 V
Poweridentical
AC adapter power	65 W	65 W
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC adapter output voltageKnown for one	Unknown — not stated by the source	19.5 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Fingerprint reader	No	No
Password protectionKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °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	10 - 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
Weight & dimensions3 differ
WeightDiffers	2.74 kg	2.65 kg
WidthDiffers	412 mm	376 mm
DepthDiffers	270 mm	259 mm
HeightKnown for one	Unknown — not stated by the source	27.9 mm
Height (front)Known for one	2.83 cm	Unknown — not stated by the source
Height (rear)Known for one	3.56 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Cables included	AC	AC
Manual	Yes	Yes
Power cord includedKnown for one	Unknown — not stated by the source	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
3D	No	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office

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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