Product comparison · 2 laptops

Lenovo ThinkPad T520 Intel® Core™ i7 i7-2620M vs Lenovo IdeaPad U450 Intel® Celeron® SU2300

107specifications compared
57differ
50identical
57known for one product only

Key differences

Product colour
- ThinkPad T520 Intel® Core™ i7 i7-2620M:Black
- IdeaPad U450 Intel® Celeron® SU2300:Black, Brown
Display diagonal
- ThinkPad T520 Intel® Core™ i7 i7-2620M:39.6 cm (15.6")
- IdeaPad U450 Intel® Celeron® SU2300:35.6 cm (14")
Display resolution
- ThinkPad T520 Intel® Core™ i7 i7-2620M:1600 x 900 pixels
- IdeaPad U450 Intel® Celeron® SU2300:1366 x 768 pixels
Processor family
- ThinkPad T520 Intel® Core™ i7 i7-2620M:Intel® Core™ i7
- IdeaPad U450 Intel® Celeron® SU2300:Intel® Celeron®
Processor model
- ThinkPad T520 Intel® Core™ i7 i7-2620M:i7-2620M
- IdeaPad U450 Intel® Celeron® SU2300:SU2300
Processor threads
- ThinkPad T520 Intel® Core™ i7 i7-2620M:4
- IdeaPad U450 Intel® Celeron® SU2300:2
Processor frequency
- ThinkPad T520 Intel® Core™ i7 i7-2620M:2.7 GHz
- IdeaPad U450 Intel® Celeron® SU2300:1.2 GHz
Processor cache
- ThinkPad T520 Intel® Core™ i7 i7-2620M:4 MB
- IdeaPad U450 Intel® Celeron® SU2300:1 MB

Side by side

Differences highlightedShow differences only

Comparison of T520, U450
164 specifications	A Lenovo ThinkPad T520 Intel® Core™ i7 i7-2620M Model T520 View product	B Lenovo IdeaPad U450 Intel® Celeron® SU2300 Model U450 View product
Design1 differ
Product colourDiffers	Black	Black, Brown
Display2 differ
Display diagonalDiffers	39.6 cm (15.6")	35.6 cm (14")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
Native aspect ratio	16:9	16:9
LED backlightKnown for one	Unknown — not stated by the source	Yes
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Celeron®
Processor generationKnown for one	2nd gen Intel® Core™ i7	Unknown — not stated by the source
Processor modelDiffers	i7-2620M	SU2300
Processor cores	2	2
Processor threadsDiffers	4	2
Processor boost frequencyKnown for one	3.4 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.7 GHz	1.2 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	4 MB	1 MB
Processor cache typeDiffers	Smart Cache	L2
L3 cacheKnown for one	4 MB	Unknown — not stated by the source
L2 cacheKnown for one	4 MB	Unknown — not stated by the source
Processor socketDiffers	BGA 1023	BGA 956
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-2600 Mobile Series	Intel Celeron Processor SU2000 Series for Mobile
Processor codenameDiffers	Sandy Bridge	Penryn
Bus typeDiffers	DMI	FSB
FSB ParityDiffers	No	Yes
SteppingDiffers	J1	R0
Thermal Design Power (TDP)Differs	35 W	10 W
Tjunction	100 °C	100 °C
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	27	Unknown — not stated by the source
ECC supported by processor	No	No
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
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
Memory2 differ
Internal memoryDiffers	4 GB	2 GB
Memory clock speedDiffers	1333 MHz	1066 MHz
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Maximum internal memory	8 GB	8 GB
Internal memory typeKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Storage2 differ
Total storage capacityDiffers	500 GB	250 GB
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive typeDiffers	DVD-RW	No
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Graphicsidentical
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics 3000	Unknown — not stated by the source
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
Maximum resolutionKnown for one	1600 x 900 pixels	Unknown — not stated by the source
Audio1 differ
Audio system	HDA	HDA
Number of built-in speakers	2	2
Speaker powerDiffers	1 W	1.5 W
Audio includedKnown for one	Mute Button, Speakers (integrated)	Unknown — not stated by the source
Networkidentical
Mobile network connectionKnown for one	Yes	Unknown — not stated by the source
Mobile network generationKnown for one	3G	Unknown — not stated by the source
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wireless technology	Wi-Fi	Wi-Fi
Ethernet LAN	Yes	Yes
Bluetooth	Yes	Yes
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Bluetooth versionKnown for one	Unknown — not stated by the source	2.1+EDR
Ports & interfaces4 differ
USB 2.0 ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA/USB 2.0 ports quantityDiffers	1	0
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 quantityDiffers	0	1
DisplayPorts quantityDiffers	1	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-out	No	No
Performanceidentical
Motherboard chipsetKnown for one	Intel® QM67 Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Touchpad
Keyboard typeKnown for one	7-row with Trackpoint	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 features22 differ
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable BitDiffers	Yes	No
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 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 Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	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® Identity Protection Technology (Intel® IPT)Known for one	Yes	Unknown — not stated by the source
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	52231	42779
Processor codeDiffers	SR041	SLGSB
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	22 x 22 mm
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Batteryidentical
Battery life (max)Known for one	11 h	Unknown — not stated by the source
Number of battery cellsKnown for one	Unknown — not stated by the source	4
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	No	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	2.51 kg	2.1 kg
WidthDiffers	373 mm	338 mm
DepthDiffers	245 mm	239 mm
HeightKnown for one	35.6 mm	Unknown — not stated by the source
Height (front)Differs	3.18 cm	1.8 cm
Height (rear)Differs	3.56 cm	2.53 cm
Hard driveidentical
Storage drive typeKnown for one	500GB SATA/ 7200	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Other featuresidentical
Security featuresKnown for one	Client Security Solution, Hard disk drive password, Power-on password, Security lock slot, Supervisor password Fingerprint Reader	Unknown — not stated by the source
Infrared data port	No	No
Battery typeKnown for one	6 Cell Lithium-Ion	Unknown — not stated by the source
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Power requirements	100 - 240V	100 - 240V
Power supply type	AC/DC	AC/DC
Modem speedKnown for one	56 Kbit/s	Unknown — not stated by the source
Modem typeKnown for one	56K V.92	Unknown — not stated by the source
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
Manageability featuresKnown for one	Client Security Solution, ThinkVantage Access Connections, ThinkVantage Active Protection System, ThinkVantage Rescue and Recovery	Unknown — not stated by the source
Drive baysKnown for one	Ultrabay Enhanced	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP

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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