Product comparison · 2 laptops

Lenovo L520 + 433610W vs Lenovo IdeaPad U450p Intel® Pentium® SU4100

114specifications compared
59differ
55identical
79known for one product only

Key differences

Display diagonal
- L520 + 433610W:39.6 cm (15.6")
- IdeaPad U450p Intel® Pentium® SU4100:35.6 cm (14")
Display resolution
- L520 + 433610W:1600 x 900 pixels
- IdeaPad U450p Intel® Pentium® SU4100:1366 x 768 pixels
HD type
- L520 + 433610W:HD+
- IdeaPad U450p Intel® Pentium® SU4100:HD
Processor family
- L520 + 433610W:Intel® Core™ i5
- IdeaPad U450p Intel® Pentium® SU4100:Intel® Pentium®
Processor model
- L520 + 433610W:i5-2450M
- IdeaPad U450p Intel® Pentium® SU4100:SU4100
Processor threads
- L520 + 433610W:4
- IdeaPad U450p Intel® Pentium® SU4100:2
Processor frequency
- L520 + 433610W:2.5 GHz
- IdeaPad U450p Intel® Pentium® SU4100:1.3 GHz
Processor cache
- L520 + 433610W:3 MB
- IdeaPad U450p Intel® Pentium® SU4100:2 MB

Side by side

Differences highlightedShow differences only

Comparison of L520 + 433610W, U450p
193 specifications	A Lenovo L520 + 433610W View product	B Lenovo IdeaPad U450p Intel® Pentium® SU4100 Model U450p View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Form factorKnown for one	Unknown — not stated by the source	Clamshell
Display3 differ
Display diagonalDiffers	39.6 cm (15.6")	35.6 cm (14")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
TouchscreenKnown for one	Unknown — not stated by the source	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 brightness	220 cd/m²	220 cd/m²
Contrast ratio (typical)	500:1	500:1
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Pentium®
Processor modelDiffers	i5-2450M	SU4100
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.5 GHz	1.3 GHz
Processor cacheDiffers	3 MB	2 MB
Processor cache typeDiffers	Smart Cache	L2
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Processor socketKnown for one	Unknown — not stated by the source	BGA 956
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor codenameDiffers	Sandy Bridge	Penryn
Bus typeDiffers	DMI	FSB
FSB Parity	No	No
SteppingDiffers	J1	R0
Motherboard southbridgeKnown for one	Unknown — not stated by the source	Intel ICH9M
Thermal Design Power (TDP)Differs	35 W	10 W
TcaseKnown for one	Unknown — not stated by the source	100 °C
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	410 M
Processing Die sizeKnown for one	Unknown — not stated by the source	107 mm²
ECC supported by processor	No	No
Processor generationKnown for one	2nd gen Intel® Core™ i5	Unknown — not stated by the source
Processor boost frequencyKnown for one	3.1 GHz	Unknown — not stated by the source
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor seriesKnown for one	Intel Core i5-2400 Mobile Series	Unknown — not stated by the source
TjunctionKnown for one	100 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8, 1x8+2x4	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	25	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	4 GB	3 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedDiffers	1333 MHz	1066 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 + 1 x 2 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Memory slots (available)Known for one	Unknown — not stated by the source	0
Maximum internal memory	8 GB	8 GB
Storage4 differ
Total storage capacityDiffers	500 GB	250 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	250 GB
HDD interface	SATA	SATA
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Optical drive type	DVD±RW	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MMC, SD, SDHC, SDXC	Memory Stick (MS), MMC, MS PRO, SD
Graphics2 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 familyDiffers	Intel® HD Graphics	Intel® GMA
On-board graphics card modelDiffers	Intel® HD Graphics 3000	Intel® GMA 4500MHD
On-board graphics card base frequencyKnown for one	650 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1300 MHz	Unknown — not stated by the source
On-board graphics card IDKnown for one	0x116	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	High Definition Audio	Dolby Home Sound Room
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
Number of built-in speakers	2	2
Speaker power	1.5 W	1.5 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Swivel webcamKnown for one	Unknown — not stated by the source	No
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
LabelflashKnown for one	Unknown — not stated by the source	No
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g
Wi-Fi data rate (max)Known for one	Unknown — not stated by the source	54 Mbit/s
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
BluetoothDiffers	Yes	No
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
LAN controllerKnown for one	Unknown — not stated by the source	Realtek RTL8111D(L)
Network connection typeKnown for one	Unknown — not stated by the source	RJ-45
Bluetooth versionKnown for one	3.0+HS	Unknown — not stated by the source
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
eSATA/USB 2.0 ports quantityDiffers	1	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	Unknown — not stated by the source	1
DisplayPorts quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Thunderbolt ports quantityKnown for one	Unknown — not stated by the source	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Headphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
Microphone connectivityKnown for one	Unknown — not stated by the source	3.5 mm
TV-out	No	No
Docking connectorKnown for one	Yes	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® HM65 Express	Intel® GS45 Express
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Touchpad
Numeric keypad	No	No
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Windows keysKnown for one	Unknown — not stated by the source	Yes
Keyboard layoutKnown for one	AZERTY	Unknown — not stated by the source
Software2 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Operating system architectureDiffers	64-bit	32-bit
Processor special features21 differ
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt StateDiffers	Yes	No
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® My WiFi Technology (Intel® MWT)Differs	Yes	No
Intel® Quick Sync Video TechnologyDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	53452	43568
Processor codeDiffers	SR04Z	SLGS4
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	22 x22 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Conflict-Free processor	No	No
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel® Identity Protection Technology (Intel® IPT)Known for one	Yes	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
Battery1 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Battery life (max)Differs	6.6 h	6 h
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
Power auto-sensingKnown for one	Unknown — not stated by the source	Yes
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	EPEAT Silver, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	2.61 kg	2.1 kg
WidthDiffers	380 mm	338.5 mm
DepthDiffers	247 mm	235.5 mm
Height (front)Differs	3.2 cm	2.3 cm
Height (rear)Differs	3.6 cm	2.89 cm
Width (imperial)Known for one	Unknown — not stated by the source	33.8 cm (13.3")
Depth (imperial)Known for one	Unknown — not stated by the source	23.6 cm (9.3")
Height (front) (imperial)Known for one	Unknown — not stated by the source	2.29 cm (0.9")
Height (rear) (imperial)Known for one	Unknown — not stated by the source	2.79 cm (1.1")
Videoidentical
HD-ReadyKnown for one	Unknown — not stated by the source	Yes
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Cables includedKnown for one	Unknown — not stated by the source	AC
ManualKnown for one	Unknown — not stated by the source	Yes
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Infrared data port	No	No
3DKnown for one	Unknown — not stated by the source	No
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Power supply typeKnown for one	Unknown — not stated by the source	AC/DC
Volume controlKnown for one	Unknown — not stated by the source	Digital
Wake-on-LAN readyKnown for one	Unknown — not stated by the source	Yes
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Intel segment taggingKnown for one	Home office, Small Business	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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