Product comparison · 2 laptops

Lenovo ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M vs Lenovo IdeaPad U450p Intel® Pentium® SU4100

143specifications compared
65differ
78identical
57known for one product only

Key differences

Processor family
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:Intel® Core™ i7
- IdeaPad U450p Intel® Pentium® SU4100:Intel® Pentium®
Processor model
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:i7-2640M
- IdeaPad U450p Intel® Pentium® SU4100:SU4100
Processor threads
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:4
- IdeaPad U450p Intel® Pentium® SU4100:2
Processor frequency
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:2.8 GHz
- IdeaPad U450p Intel® Pentium® SU4100:1.3 GHz
Processor cache
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:4 MB
- IdeaPad U450p Intel® Pentium® SU4100:2 MB
Processor cache type
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:Smart Cache
- IdeaPad U450p Intel® Pentium® SU4100:L2
Processor lithography
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:32 nm
- IdeaPad U450p Intel® Pentium® SU4100:45 nm
Processor codename
- ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M:Sandy Bridge
- IdeaPad U450p Intel® Pentium® SU4100:Penryn

Side by side

Differences highlightedShow differences only

Comparison of E420s+04W7485, U450p
200 specifications	A Lenovo ThinkPad Edge E420s+04W7485 Intel® Core™ i7 i7-2640M Model E420s+04W7485 View product	B Lenovo IdeaPad U450p Intel® Pentium® SU4100 Model U450p View product
Displayidentical
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Display brightnessKnown for one	Unknown — not stated by the source	220 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Processor11 differ
Processor familyDiffers	Intel® Core™ i7	Intel® Pentium®
Processor generationKnown for one	2nd gen Intel® Core™ i7	Unknown — not stated by the source
Processor modelDiffers	i7-2640M	SU4100
Processor threadsDiffers	4	2
Processor boost frequencyKnown for one	3.5 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.8 GHz	1.3 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	4 MB	2 MB
Processor cache typeDiffers	Smart Cache	L2
Processor lithographyDiffers	32 nm	45 nm
Processor seriesKnown for one	Intel Core i7-2600 Mobile Series	Unknown — not stated by the source
Processor codenameDiffers	Sandy Bridge	Penryn
Bus typeDiffers	DMI	FSB
SteppingDiffers	J1	R0
Thermal Design Power (TDP)Differs	35 W	10 W
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	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	28	Unknown — not stated by the source
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
Motherboard southbridgeKnown for one	Unknown — not stated by the source	Intel ICH9M
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
Memory2 differ
Internal memoryDiffers	4 GB	3 GB
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 (available)Known for one	Unknown — not stated by the source	0
Storage5 differ
Total storage capacityDiffers	128 GB	250 GB
Storage mediaDiffers	SSD	HDD
Number of HDDs installedDiffers	0	1
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	128 GB	Unknown — not stated by the source
SSD interfaceKnown for one	Micro SATA	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi	DVD±RW
Compatible memory cardsDiffers	MMC, SD, SDHC, SDXC	Memory Stick (MS), MMC, MS PRO, SD
HDD capacityKnown for one	Unknown — not stated by the source	250 GB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Graphics5 differ
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	AMD Radeon HD 6630M	Not available
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Graphics card familyDiffers	AMD, 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
Number of discrete graphics cardsKnown for one	1	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Dolby Home Theater v4	Dolby Home Sound Room
Speaker powerKnown for one	Unknown — not stated by the source	1.5 W
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Network2 differ
Wi-Fi standardsDiffers	802.11a, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g
Wi-Fi data rate (max)Differs	150 Mbit/s	54 Mbit/s
WWANKnown for one	Installed	Unknown — not stated by the source
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
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)
Ports & interfaces2 differ
HDMI versionKnown for one	1.4	Unknown — not stated by the source
Headphone outputsDiffers	0	1
Combo headphone/mic portKnown for one	Yes	Unknown — not stated by the source
Microphone inDiffers	No	Yes
Performance1 differ
Motherboard chipsetDiffers	Intel® QM67 Express	Intel® GS45 Express
Keyboardidentical
Spill-resistant keyboardKnown for one	Yes	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 features23 differ
Intel® Wireless Display (Intel® WiDi)Differs	Yes	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 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 Trusted Execution TechnologyDiffers	Yes	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)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® 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® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	53464	43568
Processor codeDiffers	SR03R	SLGS4
Processor package sizeDiffers	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)	22 x22 mm
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Battery2 differ
Number of battery cellsDiffers	4	6
Battery capacityKnown for one	48.8 Wh	Unknown — not stated by the source
Battery life (max)Differs	7.33 h	6 h
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
Security1 differ
Cable lock slotDiffers	No	Yes
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Gold, ENERGY STAR	EPEAT Silver, ENERGY STAR
Weight & dimensions7 differ
WeightDiffers	1.88 kg	2.1 kg
WidthDiffers	349 mm	338.5 mm
DepthDiffers	23 mm	235.5 mm
Height (front)Differs	2.31 cm	2.3 cm
Height (rear)Differs	3.12 cm	2.89 cm
Width (imperial)Differs	34.8 cm (13.7")	33.8 cm (13.3")
Height (rear) (imperial)Differs	3.05 cm (1.2")	2.79 cm (1.1")
Other featuresidentical
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS

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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