Product comparison · 2 laptops

Acer Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop vs Lenovo IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop

114specifications compared
58differ
56identical
66known for one product only

Key differences

Product colour
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:Black
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:White
Display diagonal
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:39.6 cm (15.6")
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:33.8 cm (13.3")
Display resolution
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:1366 x 768 pixels
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:1920 x 1080 pixels
Processor family
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:Intel® Celeron®
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:Intel® Core™ i5
Processor model
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:N2940
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:i5-5200U
Processor cores
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:4
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:2
Processor boost frequency
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:2.25 GHz
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:2.7 GHz
Processor frequency
- Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop:1.83 GHz
- IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop:2.2 GHz

Side by side

Differences highlightedShow differences only

Comparison of ES1-512-C9KB, U31-70
180 specifications	A Acer Aspire E ES1-512-C9KB Intel® Celeron® N2940 Laptop Model ES1-512-C9KB View product	B Lenovo IdeaPad U31-70 Intel® Core™ i5 i5-5200U Laptop Model U31-70 View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Black	White
Form factor	Clamshell	Clamshell
Housing materialKnown for one	Unknown — not stated by the source	Acrylonitrile butadiene styrene (ABS), Aluminium
Display2 differ
Display diagonalDiffers	39.6 cm (15.6")	33.8 cm (13.3")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD typeKnown for one	Unknown — not stated by the source	Full HD
Panel typeKnown for one	Unknown — not stated by the source	IPS
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
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	700:1
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron®	Intel® Core™ i5
Processor generationKnown for one	Unknown — not stated by the source	5th gen Intel® Core™ i5
Processor modelDiffers	N2940	i5-5200U
Processor coresDiffers	4	2
Processor threads	4	4
Processor boost frequencyDiffers	2.25 GHz	2.7 GHz
Processor frequencyDiffers	1.83 GHz	2.2 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 lithographyDiffers	22 nm	14 nm
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Celeron Processor N2000 Series for Mobile	Intel® Core™ i5-5200 Mobile Series
Processor codenameDiffers	Bay Trail	Broadwell
Bus typeKnown for one	Unknown — not stated by the source	DMI2
SteppingDiffers	C0	F0
Thermal Design Power (TDP)Differs	7.5 W	15 W
Configurable TDP-downKnown for one	Unknown — not stated by the source	7.5 W
Configurable TDP-down frequencyKnown for one	Unknown — not stated by the source	0.6 GHz
TjunctionDiffers	100 °C	105 °C
Maximum number of PCI Express lanesDiffers	4	12
PCI Express configurationsDiffers	1x4	4x1, 2x4
PCI Express slots version	2.0	2.0
FSB ParityKnown for one	No	Unknown — not stated by the source
Scenario Design Power (SDP)Known for one	4.5 W	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memory1 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory type	DDR3L-SDRAM	DDR3L-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 8 GB
Memory slots	1x SO-DIMM	1x SO-DIMM
Maximum internal memory	8 GB	8 GB
Maximum internal memory (64-bit)Known for one	Unknown — not stated by the source	8 GB
Storage5 differ
Total storage capacityDiffers	500 GB	1 TB
Storage mediaDiffers	HDD	Hybrid-HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	1 TB
Hybrid-HDD cache typeKnown for one	Unknown — not stated by the source	Flash
Hybrid-HDD capacityKnown for one	Unknown — not stated by the source	1 TB
Hybrid-HDD cache memoryKnown for one	Unknown — not stated by the source	8 GB
Optical drive typeDiffers	DVD Super Multi DL	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	SD	MMC, SD, SDHC, SDXC
Graphics3 differ
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 5500
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	16 GB
On-board graphics card base frequencyDiffers	313 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	854 MHz	900 MHz
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	11.2
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x1616
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
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
Speaker powerKnown for one	Unknown — not stated by the source	1.5 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1 MP
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	Wi-Fi 4 (802.11n), 802.11b, 802.11g	802.11a, Wi-Fi 5 (802.11ac), 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 version	4.0	4.0
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	2	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	1	2
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
Docking connector	No	No
USB Sleep-and-ChargeKnown for one	Unknown — not stated by the source	Yes
USB Sleep-and-Charge portsKnown for one	Unknown — not stated by the source	1
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
Total number of SATA connectorsKnown for one	2	Unknown — not stated by the source
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	Yes	No
Windows keys	Yes	Yes
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Keyboard layoutKnown for one	QWERTZ	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architecture	64-bit	64-bit
Trial softwareKnown for one	Unknown — not stated by the source	McAfee LiveSafe
Processor special features18 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
Graphics & IMC lithographyDiffers	22 nm	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	No	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	Unknown — not stated by the source	1.00
Intel Smart Response Technology versionKnown for one	Unknown — not stated by the source	1.00
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)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)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)Differs	No	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® OS GuardKnown for one	Unknown — not stated by the source	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	82104	85212
Processor codeDiffers	SR1YV	SR23Y
Processor package sizeDiffers	25 x 27 mm	40 x 24 x 1.3 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffers	No	Yes
Conflict-Free processor	Yes	Yes
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Smart Connect TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Smart Connect Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Virtualization Technology (Intel® VT)Known for one	VT-x	Unknown — not stated by the source
Battery3 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Number of battery cellsDiffers	4	2
Battery capacityDiffers	48 Wh	35 Wh
Battery life (max)	7 h	7 h
Battery voltageKnown for one	15.2 V	Unknown — not stated by the source
Power1 differ
AC adapter power	45 W	45 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltageDiffers	120 - 230 V	100 - 240 V
DC-in jack	Yes	Yes
AC adapter output voltageKnown for one	19 V	Unknown — not stated by the source
Securityidentical
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Password protectionKnown for one	Unknown — not stated by the source	Yes
Password protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
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 & dimensions4 differ
WeightDiffers	2.4 kg	1.56 kg
WidthDiffers	381.6 mm	323 mm
DepthDiffers	258 mm	230 mm
HeightDiffers	26.1 mm	19.3 mm
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Power cord included	Yes	Yes

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.

More laptop comparisons

All laptop comparisons