Product comparison · 2 laptops

Lenovo ThinkPad L520 Intel® Core™ i5 i5-2520M vs Lenovo ThinkPad W520 Intel® Core™ i7 i7-2820QM

128specifications compared
37differ
91identical
43known for one product only

Key differences

Display resolution
- ThinkPad L520 Intel® Core™ i5 i5-2520M:1366 x 768 pixels
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:1920 x 1080 pixels
Processor family
- ThinkPad L520 Intel® Core™ i5 i5-2520M:Intel® Core™ i5
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:Intel® Core™ i7
Processor generation
- ThinkPad L520 Intel® Core™ i5 i5-2520M:2nd gen Intel® Core™ i5
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:2nd gen Intel® Core™ i7
Processor model
- ThinkPad L520 Intel® Core™ i5 i5-2520M:i5-2520M
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:i7-2820QM
Processor cores
- ThinkPad L520 Intel® Core™ i5 i5-2520M:2
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:4
Processor threads
- ThinkPad L520 Intel® Core™ i5 i5-2520M:4
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:8
Processor boost frequency
- ThinkPad L520 Intel® Core™ i5 i5-2520M:3.2 GHz
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:3.4 GHz
Processor frequency
- ThinkPad L520 Intel® Core™ i5 i5-2520M:2.5 GHz
- ThinkPad W520 Intel® Core™ i7 i7-2820QM:2.3 GHz

Side by side

Differences highlightedShow differences only

Comparison of L520, W520
171 specifications	A Lenovo ThinkPad L520 Intel® Core™ i5 i5-2520M Model L520 View product	B Lenovo ThinkPad W520 Intel® Core™ i7 i7-2820QM Model W520 View product
Designidentical
Product colour	Black	Black
Display1 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
HD typeKnown for one	Unknown — not stated by the source	Full HD
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratio	16:9	16:9
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i7
Processor modelDiffers	i5-2520M	i7-2820QM
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3.2 GHz	3.4 GHz
Processor frequencyDiffers	2.5 GHz	2.3 GHz
Processor cacheDiffers	3 MB	8 MB
Processor cache type	Smart Cache	Smart Cache
Processor front side busKnown for one	Unknown — not stated by the source	1600 MHz
Processor socketDiffers	Socket 988	Socket 1224
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-2500 Mobile Series	Intel Core i7-2800 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	J1	D2
Thermal Design Power (TDP)Differs	35 W	45 W
TjunctionDiffers	100 °C	100 C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	25	23
ECC supported by processor	No	No
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
L3 cacheKnown for one	3 MB	Unknown — not stated by the source
L2 cacheKnown for one	3 MB	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	3 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slotsDiffers	2x SO-DIMM	4x SO-DIMM
Memory slots (available)Known for one	Unknown — not stated by the source	2
Maximum internal memoryDiffers	8 GB	32 GB
Memory layout (slots x size)Known for one	1 x 1 + 1 x 2 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	320 GB	500 GB
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	320 GB	500 GB
HDD interface	SATA	SATA
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Optical drive type	DVD-RW	DVD-RW
Card reader integratedDiffers	No	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® Quadro® 2000M
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	2 GB
Graphics card familyKnown for one	Unknown — not stated by the source	Intel, NVIDIA
Discrete graphics memory typeKnown for one	Unknown — not stated by the source	GDDR3
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)	1300 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
Maximum resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
Audio1 differ
Number of built-in speakers	2	2
Speaker powerDiffers	1.5 W	1 W
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Audio systemKnown for one	HD	Unknown — not stated by the source
Networkidentical
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wireless technologyKnown for one	Unknown — not stated by the source	Wi-Fi
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Bluetooth	No	No
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	3	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	2
eSATA/USB 2.0 ports quantity	1	1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantity	1	1
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
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotKnown for one	Unknown — not stated by the source	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
TV-out	No	No
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® QM67 Express
Keyboard1 differ
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Numeric keypadKnown for one	Unknown — not stated by the source	No
Full-size keyboardDiffers	No	Yes
Windows keysKnown for one	Unknown — not stated by the source	Yes
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Processor special features4 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 Technology	Yes	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)	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™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	52229	52227
Processor codeDiffers	SR048	SR00U
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31.0 x 24.0 (BGA1224)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	9
Battery life (max)Known for one	Unknown — not stated by the source	8.9 h
Power1 differ
AC adapter powerDiffers	65 W	170 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Fingerprint reader	Yes	Yes
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	2.6 kg	3.11 kg
WidthDiffers	379.9 mm	372.8 mm
DepthDiffers	246.8 mm	245.1 mm
Height (front)Differs	3.2 cm	3.16 cm
Height (rear)Differs	3.6 cm	3.58 cm
Width (imperial)Known for one	Unknown — not stated by the source	37.3 cm (14.7")
Depth (imperial)Known for one	Unknown — not stated by the source	24.5 cm (9.65")
Height (front) (imperial)Known for one	Unknown — not stated by the source	3.2 cm (1.26")
Height (rear) (imperial)Known for one	Unknown — not stated by the source	3.58 cm (1.41")
HeightKnown for one	32 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Infrared data port	No	No
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Intel segment taggingKnown for one	Unknown — not stated by the source	Professional
Supplied AC adapter type	AC	AC
Power requirementsKnown for one	100-240V	Unknown — not stated by the source
Modem typeKnown for one	No	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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