Product comparison · 2 laptops

Dell E6420 XFR vs Dell Latitude l0855220 Intel® Core™ i5 i5-2520M

129specifications compared
35differ
94identical
31known for one product only

Key differences

Product colour
- E6420 XFR:Grey
- Latitude l0855220 Intel® Core™ i5 i5-2520M:Black
Display diagonal
- E6420 XFR:35.6 cm (14")
- Latitude l0855220 Intel® Core™ i5 i5-2520M:39.6 cm (15.6")
Display resolution
- E6420 XFR:1366 x 768 pixels
- Latitude l0855220 Intel® Core™ i5 i5-2520M:1920 x 1080 pixels
Processor family
- E6420 XFR:Intel® Core™ i3
- Latitude l0855220 Intel® Core™ i5 i5-2520M:Intel® Core™ i5
Processor generation
- E6420 XFR:2nd gen Intel® Core™ i3
- Latitude l0855220 Intel® Core™ i5 i5-2520M:2nd gen Intel® Core™ i5
Processor model
- E6420 XFR:i3-2330M
- Latitude l0855220 Intel® Core™ i5 i5-2520M:i5-2520M
Processor frequency
- E6420 XFR:2.2 GHz
- Latitude l0855220 Intel® Core™ i5 i5-2520M:2.5 GHz
Processor cache type
- E6420 XFR:L3
- Latitude l0855220 Intel® Core™ i5 i5-2520M:Smart Cache

Side by side

Differences highlightedShow differences only

Comparison of E6420 XFR, l0855220
160 specifications	A Dell E6420 XFR View product	B Dell Latitude l0855220 Intel® Core™ i5 i5-2520M Model l0855220 View product
Design1 differ
Product colourDiffers	Grey	Black
Form factor	Clamshell	Clamshell
Display2 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
HD typeKnown for one	Unknown — not stated by the source	Full HD
Processor10 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2330M	i5-2520M
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2.2 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache typeDiffers	L3	Smart Cache
Processor socketDiffers	BGA 1023	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2300 Mobile Series	Intel Core i5-2500 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
TjunctionDiffers	85C ; 100C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurationsDiffers	1x16, 2x8	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	22	25
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
ECC supported by processor	No	No
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.2 GHz
Memory2 differ
Internal memoryDiffers	2 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory layout (slots x size)Differs	1 x 2 GB	1 x 4 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Memory slots (available)Known for one	1	Unknown — not stated by the source
Maximum internal memory	8 GB	8 GB
Storage2 differ
Total storage capacity	320 GB	320 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacity	320 GB	320 GB
HDD interface	SATA	SATA
Optical drive typeDiffers	DVD±RW	DVD-RW
Card reader integratedDiffers	No	Yes
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
Graphics card family	Intel	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Audioidentical
Audio system	HD	HD
Built-in speaker(s)Known for one	Yes	Unknown — not stated by the source
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Network2 differ
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wi-Fi standardsDiffers	802.11a, 802.11b, 802.11g	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
BluetoothDiffers	Yes	No
Bluetooth versionKnown for one	3.0+HS	Unknown — not stated by the source
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Wireless technologyKnown for one	Unknown — not stated by the source	802.11 b/g/n
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	3	4
eSATA/USB 2.0 ports quantity	1	1
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
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI portDiffers	No	Yes
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputsDiffers	0	1
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone inDiffers	No	Yes
Docking connectorKnown for one	Yes	Unknown — not stated by the source
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slotKnown for one	No	Unknown — not stated by the source
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® QM67 Express	Intel® HM65 Express
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard layoutKnown for one	AZERTY	Unknown — not stated by the source
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	32-bit	32-bit
Drivers included	Yes	Yes
Processor special features7 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	32 nm	32 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 Trusted Execution TechnologyDiffers	No	Yes
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)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	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™Differs	Yes	No
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	53434	52229
Processor codeDiffers	SR04J	SR048
Processor package size	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions2 differ
WeightKnown for one	4 kg	Unknown — not stated by the source
WidthDiffers	356 mm	388 mm
DepthDiffers	295 mm	251 mm
HeightKnown for one	56.8 mm	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	3.02 cm
Height (rear)Known for one	Unknown — not stated by the source	3.32 cm
Other featuresidentical
Infrared data port	No	No
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Power supply typeKnown for one	Unknown — not stated by the source	AC/DC
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Quick start guideKnown for one	Unknown — not stated by the source	Yes

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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