Product comparison · 2 laptops

Lenovo IdeaPad U450p Intel® Pentium® SU4100 vs Lenovo IdeaPad Y550P Intel® Core™ i7 i7-720QM

162specifications compared
56differ
106identical
21known for one product only

Key differences

Display diagonal
- IdeaPad U450p Intel® Pentium® SU4100:35.6 cm (14")
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:39.6 cm (15.6")
Processor family
- IdeaPad U450p Intel® Pentium® SU4100:Intel® Pentium®
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:Intel® Core™ i7
Processor model
- IdeaPad U450p Intel® Pentium® SU4100:SU4100
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:i7-720QM
Processor cores
- IdeaPad U450p Intel® Pentium® SU4100:2
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:4
Processor threads
- IdeaPad U450p Intel® Pentium® SU4100:2
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:8
Processor frequency
- IdeaPad U450p Intel® Pentium® SU4100:1.3 GHz
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:1.6 GHz
Processor cache
- IdeaPad U450p Intel® Pentium® SU4100:2 MB
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:6 MB
Processor cache type
- IdeaPad U450p Intel® Pentium® SU4100:L2
- IdeaPad Y550P Intel® Core™ i7 i7-720QM:Smart Cache

Side by side

Differences highlightedShow differences only

Comparison of U450p, Y550P
183 specifications	A Lenovo IdeaPad U450p Intel® Pentium® SU4100 Model U450p View product	B Lenovo IdeaPad Y550P Intel® Core™ i7 i7-720QM Model Y550P View product
Display1 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Processor14 differ
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i7
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i7
Processor modelDiffers	SU4100	i7-720QM
Processor coresDiffers	2	4
Processor threadsDiffers	2	8
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.8 GHz
Processor frequencyDiffers	1.3 GHz	1.6 GHz
System bus rateKnown for one	Unknown — not stated by the source	2.5 GT/s
Processor cacheDiffers	2 MB	6 MB
Processor cache typeDiffers	L2	Smart Cache
Processor socketDiffers	BGA 956	Socket 988
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core i7-700 Mobile Series
Processor codenameDiffers	Penryn	Clarksfield
Bus typeDiffers	FSB	DMI
SteppingDiffers	R0	B1
Thermal Design Power (TDP)Differs	10 W	45 W
TjunctionKnown for one	Unknown — not stated by the source	100 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Number of Processing Die TransistorsDiffers	410 M	774 M
Processing Die sizeDiffers	107 mm²	296 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	12
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Motherboard southbridgeKnown for one	Intel ICH9M	Unknown — not stated by the source
TcaseKnown for one	100 °C	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	3 GB	4 GB
Memory layout (slots x size)Differs	1 x 1 + 1 x 2 GB	2 x 2 GB
Storage3 differ
Total storage capacityDiffers	250 GB	500 GB
HDD capacityDiffers	250 GB	500 GB
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD	Memory Stick (MS), MMC, MS PRO, SD, xD
Graphics5 differ
On-board graphics cardDiffers	Yes	No
Discrete graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	Not available	NVIDIA® GeForce® GT 240M
Graphics card familyDiffers	Intel	NVIDIA
On-board graphics card modelDiffers	Intel® GMA 4500MHD	Not available
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
On-board graphics card familyKnown for one	Intel® GMA	Unknown — not stated by the source
Audio2 differ
Audio systemDiffers	Dolby Home Sound Room	Dolby Home Theater
Speaker powerDiffers	1.5 W	2 W
Network2 differ
Wi-Fi standardsDiffers	802.11b, 802.11g	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Wi-Fi data rate (max)Differs	54 Mbit/s	150 Mbit/s
LAN controllerKnown for one	Realtek RTL8111D(L)	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	3	2
eSATA/USB 2.0 ports quantityDiffers	0	1
Performance1 differ
Motherboard chipsetDiffers	Intel® GS45 Express	Intel® PM55 Express
Software1 differ
Operating system architectureDiffers	32-bit	64-bit
Processor special features11 differ
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	1.0
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDDiffers	43568	43122
Processor codeDiffers	SLGS4	SLBLY
Processor package sizeDiffers	22 x22 mm	37.5 x 37.5 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Thermal Monitoring TechnologiesDiffers	No	Yes
Battery1 differ
Battery life (max)Differs	6 h	3.5 h
Power1 differ
AC adapter powerDiffers	65 W	90 W
Security1 differ
Password protection typeDiffers	HDD, Power on, Supervisor	HDD, Supervisor, User
Weight & dimensions9 differ
WeightDiffers	2.1 kg	2.75 kg
WidthDiffers	338.5 mm	385 mm
DepthDiffers	235.5 mm	255 mm
Height (front)Differs	2.3 cm	2.6 cm
Height (rear)Differs	2.89 cm	3.7 cm
Width (imperial)Differs	33.8 cm (13.3")	38.6 cm (15.2")
Depth (imperial)Differs	23.6 cm (9.3")	25.4 cm (10")
Height (front) (imperial)Differs	2.29 cm (0.9")	2.59 cm (1.02")
Height (rear) (imperial)Differs	2.79 cm (1.1")	3.81 cm (1.5")
Other featuresidentical
3DKnown 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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