Product comparison · 2 laptops

Dell 7520 SE vs Dell 7720 SE

177specifications compared
35differ
142identical
18known for one product only

Key differences

Product colour
- 7520 SE:Black, Silver
- 7720 SE:Black
Display diagonal
- 7520 SE:39.6 cm (15.6")
- 7720 SE:43.9 cm (17.3")
Processor family
- 7520 SE:Intel® Core™ i7
- 7720 SE:Intel® Core™ i5
Processor generation
- 7520 SE:3rd gen Intel® Core™ i7
- 7720 SE:3rd gen Intel® Core™ i5
Processor model
- 7520 SE:i7-3612QM
- 7720 SE:i5-3210M
Processor cores
- 7520 SE:4
- 7720 SE:2
Processor threads
- 7520 SE:8
- 7720 SE:4
Processor frequency
- 7520 SE:2.1 GHz
- 7720 SE:2.5 GHz

Side by side

Differences highlightedShow differences only

Comparison of 7520 SE, 7720 SE
195 specifications	A Dell 7520 SE View product	B Dell 7720 SE View product
Design1 differ
Product typeKnown for one	Laptop	Unknown — not stated by the source
Product colourDiffers	Black, Silver	Black
Form factor	Clamshell	Clamshell
Display1 differ
Display diagonalDiffers	39.6 cm (15.6")	43.9 cm (17.3")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
TouchscreenKnown for one	No	Unknown — not stated by the source
HD type	Full HD	Full HD
Display number of colours	16.78 million colours	16.78 million colours
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	3rd gen Intel® Core™ i7	3rd gen Intel® Core™ i5
Processor modelDiffers	i7-3612QM	i5-3210M
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequency	3.1 GHz	3.1 GHz
Processor frequencyDiffers	2.1 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	6 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	Socket 1224	BGA 1023
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-3600 Mobile series	Intel Core i5-3200 Mobile series
Processor codename	Ivy Bridge	Ivy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	E1	L1
Thermal Design Power (TDP)	35 W	35 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	3.0	3.0
CPU multiplier (bus/core ratio)Differs	21	25
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	8 GB	6 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory layout (slots x size)Differs	2 x 4 GB	1 x 2 + 1 x 4 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Memory slots (available)	0	0
Maximum internal memory	8 GB	8 GB
Maximum internal memory (64-bit)	8 GB	8 GB
Storage3 differ
Total storage capacityDiffers	750 GB	1 TB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	750 GB	1 TB
HDD interface	SATA	SATA
HDD speedDiffers	7200 RPM	5400 RPM
HDD size	2.5"	2.5"
Number of SSDs installed	0	0
Optical drive type	DVD Super Multi DL	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cards	Memory Stick (MS), MMC, SD	Memory Stick (MS), MMC, SD
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	AMD Radeon HD 7730M	NVIDIA® GeForce® GT 650M
Discrete graphics card memory	2 GB	2 GB
Graphics card familyDiffers	AMD, Intel	Intel, NVIDIA
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	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card ID	0x166	0x166
Number of discrete graphics cards installedKnown for one	1	Unknown — not stated by the source
Audio1 differ
Audio system	HD	HD
Built-in speaker(s)	Yes	Yes
Number of built-in speakersDiffers	2	3
Speakers manufacturerKnown for one	Skullcandy	Unknown — not stated by the source
Speaker powerKnown for one	2 W	Unknown — not stated by the source
Built-in microphone	Yes	Yes
Built-in subwooferKnown for one	Unknown — not stated by the source	Yes
Cameraidentical
Front cameraKnown for one	Yes	Unknown — not stated by the source
Front camera resolution (numeric)	1 MP	1 MP
Optical driveidentical
LightScribe	No	No
Optical drive interface	SATA	SATA
DVD+R read speed	8x	8x
DVD+R write speed	8x	8x
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	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Cabling technologyDiffers	10/100/1000Base-T(X)	10/100Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Ports & interfacesidentical
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4	4
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	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	No	Unknown — not stated by the source
Microphone in	Yes	Yes
Docking connectorKnown for one	No	Unknown — not stated by the source
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
Headphone connectivity	3.5 mm	3.5 mm
Microphone connectivity	3.5 mm	3.5 mm
Performanceidentical
Motherboard chipset	Intel HM77 Express	Intel HM77 Express
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	No	Yes
Full-size keyboard	Yes	Yes
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard layout	QWERTZ	QWERTZ
Keyboard language	German	German
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special features3 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 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 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)	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® 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)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	No	Unknown — not stated by the source
Intel® Smart Cache	Yes	Yes
Intel® Smart Response TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	64901	65708
Processor codeDiffers	SR0MR	SR0N0
Processor package sizeDiffers	31.0 x 24.0 (BGA1224)	31.0 x 24.0 (BGA1023)
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 capacity	48 Wh	48 Wh
Poweridentical
AC adapter power	90 W	90 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output voltage	19 V	19 V
Power auto-sensing	Yes	Yes
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Fingerprint readerKnown for one	No	Unknown — not stated by the source
Password protection type	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	5 - 35 °C	5 - 35 °C
Storage temperature (T-T)	-15 - 60 °C	-15 - 60 °C
Operating relative humidity (H-H)	20 - 85%	20 - 85%
Storage relative humidity (H-H)	10 - 90%	10 - 90%
Weight & dimensions9 differ
WeightDiffers	2.77 kg	3.28 kg
WidthDiffers	378 mm	416.8 mm
DepthDiffers	252 mm	276 mm
Height (front)Differs	3.03 cm	3.17 cm
Height (rear)Differs	3.41 cm	3.71 cm
Width (imperial)Differs	37.8 cm (14.9")	41.7 cm (16.4")
Depth (imperial)Differs	25.2 cm (9.92")	27.6 cm (10.9")
Height (front) (imperial)Differs	3.02 cm (1.19")	3.15 cm (1.24")
Height (rear) (imperial)Differs	3.4 cm (1.34")	3.71 cm (1.46")
Packaging contentidentical
AC adapter included	Yes	Yes
Cables included	AC	AC
Manual	Yes	Yes
Quick start guide	Yes	Yes
Warranty card	Yes	Yes
Other featuresidentical
Infrared data port	No	No
3D	No	No
Intel segment taggingKnown for one	Home office	Unknown — 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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