Product comparison · 2 laptops

Acer Extensa 2508-C66M Intel® Celeron® N2940 Laptop vs Acer Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop

128specifications compared
38differ
90identical
48known for one product only

Key differences

Processor family
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:Intel® Celeron®
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:Intel® Core™ i3
Processor model
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:N2940
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:i3-4005U
Processor cores
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:4
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:2
Processor frequency
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:1.83 GHz
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:1.7 GHz
Processor cache
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:2 MB
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:3 MB
Processor cache type
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:L2
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:Smart Cache
Processor socket
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:BGA 1170
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:BGA 1168
Processor operating modes
- Extensa 2508-C66M Intel® Celeron® N2940 Laptop:32-bit, 64-bit
- Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop:64-bit

Side by side

Differences highlightedShow differences only

Comparison of 2508-C66M, E5-571-38NJ
176 specifications	A Acer Extensa 2508-C66M Intel® Celeron® N2940 Laptop Model 2508-C66M View product	B Acer Aspire E E5-571-38NJ Intel® Core™ i3 i3-4005U Laptop Model E5-571-38NJ View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Displayidentical
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
Touchscreen	No	No
HD type	HD	HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Processor13 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron®	Intel® Core™ i3
Processor generationKnown for one	Unknown — not stated by the source	4th gen Intel® Core™ i3
Processor modelDiffers	N2940	i3-4005U
Processor coresDiffers	4	2
Processor threads	4	4
Processor frequencyDiffers	1.83 GHz	1.7 GHz
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Processor cacheDiffers	2 MB	3 MB
Processor cache typeDiffers	L2	Smart Cache
Processor socketDiffers	BGA 1170	BGA 1168
Processor lithography	22 nm	22 nm
Processor operating modesDiffers	32-bit, 64-bit	64-bit
Processor seriesDiffers	Intel Celeron Processor N2000 Series for Mobile	Intel® Core™ i3-4000 Mobile Series
Processor codenameDiffers	Bay Trail	Haswell
Bus typeKnown for one	Unknown — not stated by the source	DMI
FSB Parity	No	No
Thermal Design Power (TDP)Differs	7.5 W	15 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	4	10
PCI Express configurationsDiffers	1x4	4x1, 1x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Processor boost frequencyKnown for one	2.25 GHz	Unknown — not stated by the source
SteppingKnown for one	C0	Unknown — not stated by the source
Scenario Design Power (SDP)Known for one	4.5 W	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 4 GB
Memory slotsDiffers	1x SO-DIMM	2x SO-DIMM
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Storage2 differ
Total storage capacity	500 GB	500 GB
Storage mediaDiffers	HDD	Hybrid-HDD
HDD capacity	500 GB	500 GB
HDD interface	SATA	SATA
Hybrid-HDD cache typeKnown for one	Unknown — not stated by the source	SSD
Hybrid-HDD capacityKnown for one	Unknown — not stated by the source	500 GB
Hybrid-HDD cache memoryKnown for one	Unknown — not stated by the source	8 GB
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Optical drive typeDiffers	No	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cards	SD	SD
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
Number of SSDs installedKnown for one	0	Unknown — not stated by the source
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 4400
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	2 GB
On-board graphics card base frequencyDiffers	313 MHz	200 MHz
On-board graphics card dynamic frequency (max)Differs	854 MHz	950 MHz
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	12
On-board graphics card IDKnown for one	Unknown — not stated by the source	0xA16
On-board graphics card burst frequencyKnown for one	854 MHz	Unknown — not stated by the source
Audioidentical
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Video capturing speedKnown for one	Unknown — not stated by the source	30 fps
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	4.0
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ports & interfaces1 differ
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Total number of SATA connectors	2	2
Number of SATA III connectorsKnown for one	Unknown — not stated by the source	2
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel SoC
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	Yes	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architecture	64-bit	64-bit
Processor special features11 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
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	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel ME Firmware VersionKnown for one	Unknown — not stated by the source	9.5
Intel Rapid Storage TechnologyDiffers	No	Yes
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	Unknown — not stated by the source	0.00
Intel Smart Connect Technology	Yes	Yes
Intel Smart Connect Technology version	1.00	1.00
Intel Smart Response Technology versionKnown for one	Unknown — not stated by the source	0.00
Intel TSX-NIKnown for one	Unknown — not stated by the source	No
Intel TSX-NI versionKnown for one	Unknown — not stated by the source	0.00
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® Matrix Storage Technology (Intel® MST)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost Technology	No	No
Intel® Virtualization Technology (Intel® VT)	VT-x	VT-x
Processor ARK IDDiffers	82104	75105
Processor package sizeDiffers	25 x 27 mm	40 x 24 x 1.5 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffers	No	Yes
UARTKnown for one	Unknown — not stated by the source	Yes
Conflict-Free processor	Yes	Yes
Graphics & IMC lithographyKnown for one	22 nm	Unknown — not stated by the source
Processor codeKnown for one	SR1YV	Unknown — not stated by the source
Battery2 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	3	6
Battery capacityDiffers	3220 mAh	5000 mAh
Battery life (max)	7 h	7 h
Power1 differ
AC adapter powerDiffers	45 W	40 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Fingerprint reader	No	No
Weight & dimensions3 differ
WeightDiffers	2.4 kg	2.5 kg
Width	381.6 mm	381.6 mm
DepthDiffers	258 mm	256 mm
HeightDiffers	26.1 mm	25.3 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Cables included	AC	AC
Power cord includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
3D	No	No
Optical driveidentical
LightScribeKnown 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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