Product comparison · 2 laptops

Acer Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop vs Lenovo Flex 2 15

119specifications compared
32differ
87identical
50known for one product only

Key differences

Product type
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:Laptop
- Flex 2 15:Hybrid (2-in-1)
Display resolution
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:1366 x 768 pixels
- Flex 2 15:1920 x 1080 pixels
Touchscreen
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:No
- Flex 2 15:Yes
Processor family
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:Intel® Core™ i7
- Flex 2 15:Intel® Core™ i3
Processor generation
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:4th gen Intel® Core™ i7
- Flex 2 15:4th gen Intel® Core™ i3
Processor model
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:i7-4510U
- Flex 2 15:i3-4010U
Processor frequency
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:2 GHz
- Flex 2 15:1.7 GHz
Processor cache
- Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop:4 MB
- Flex 2 15:3 MB

Side by side

Differences highlightedShow differences only

Comparison of 5-571G-75LJ, Flex 2 15
169 specifications	A Acer Aspire E 5-571G-75LJ Intel® Core™ i7 i7-4510U Laptop Model 5-571G-75LJ View product	B Lenovo Flex 2 15 View product
Design2 differ
Product typeDiffers	Laptop	Hybrid (2-in-1)
Product colour	Black	Black
Form factorDiffers	Clamshell	Convertible (Fold-back screen)
Display2 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
TouchscreenDiffers	No	Yes
Touchscreen typeKnown for one	Unknown — not stated by the source	Capacitive
HD typeKnown for one	Unknown — not stated by the source	Full HD
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Panel typeKnown for one	Unknown — not stated by the source	IPS
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Contrast ratio (typical)Known for one	Unknown — not stated by the source	700:1
Processor8 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i3
Processor generationDiffers	4th gen Intel® Core™ i7	4th gen Intel® Core™ i3
Processor modelDiffers	i7-4510U	i3-4010U
Processor cores	2	2
Processor threads	4	4
Processor frequencyDiffers	2 GHz	1.7 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1168	BGA 1168
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-4500 Mobile series	Intel® Core™ i3-4000 Mobile Series
Processor codename	Haswell	Haswell
Bus type	DMI2	DMI2
SteppingDiffers	D0	C0
Thermal Design Power (TDP)	15 W	15 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	12	12
PCI Express configurationsDiffers	4x1, 2x4	2x4, 4x1
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Processor boost frequencyKnown for one	3.1 GHz	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Memory1 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3L-SDRAM	DDR3L-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Memory form factorKnown for one	Unknown — not stated by the source	SO-DIMM
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memory	16 GB	16 GB
Storage4 differ
Total storage capacityDiffers	1 TB	500 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	1 TB	500 GB
HDD size	2.5"	2.5"
Optical drive typeDiffers	DVD-RW	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	SD	MMC, SD, SDHC, SDXC
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
Graphics2 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 model	Intel® HD Graphics 4400	Intel® HD Graphics 4400
Maximum on-board graphics card memoryDiffers	1.74 GB	2 GB
On-board graphics card base frequency	200 MHz	200 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1000 MHz
On-board graphics card DirectX version	11.2/12	11.2/12
On-board graphics card OpenGL version	4.3	4.3
On-board graphics card ID	0xA16	0xA16
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
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network1 differ
Wi-Fi	Yes	Yes
Ethernet LAN	Yes	Yes
BluetoothDiffers	No	Yes
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	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	1	0
Thunderbolt ports quantity	0	0
Combo headphone/mic portKnown for one	Unknown — not stated by the source	Yes
Docking connector	No	No
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Number of SATA III connectors	4	4
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
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	Yes	Yes
Windows keysKnown for one	Unknown — not stated by the source	Yes
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 8.1	Windows 8.1
Operating system architecture	64-bit	64-bit
Processor special features7 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options availableDiffers	No	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	No
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware Version	9.5	9.5
Intel Rapid Storage Technology	Yes	Yes
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 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	1.00
Intel TSX-NI	No	No
Intel TSX-NI version	0.00	0.00
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	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)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® High Definition Audio (Intel® HD Audio)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® Matrix Storage Technology (Intel® MST)	No	No
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	81015	75107
Processor codeDiffers	SR1EB	SSSR16Q
Processor package size	40 x 24 x 1.5 mm	40 x 24 x 1.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
UARTKnown for one	Unknown — not stated by the source	Yes
Conflict-Free processor	Yes	Yes
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
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 Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Battery capacityKnown for one	2500 mAh	Unknown — not stated by the source
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	No	Yes
Fingerprint readerKnown for one	Unknown — not stated by the source	No
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	No
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 & dimensions3 differ
WeightDiffers	2.5 kg	2.56 kg
WidthDiffers	381.6 mm	382 mm
DepthDiffers	256 mm	276 mm
HeightKnown for one	Unknown — not stated by the source	25.8 mm
Height (front)Known for one	2.53 cm	Unknown — not stated by the source
Height (rear)Known for one	3.03 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Power cord includedKnown for one	Yes	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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