Product comparison · 2 laptops

Acer Dual Screen vs Lenovo X1 Intel® Core™ i5 i5-2520M

108specifications compared
43differ
65identical
79known for one product only

Key differences

Display diagonal
- Dual Screen:35.6 cm (14")
- X1 Intel® Core™ i5 i5-2520M:33.8 cm (13.3")
Processor generation
- Dual Screen:4th gen Intel® Core™ i5
- X1 Intel® Core™ i5 i5-2520M:2nd gen Intel® Core™ i5
Processor model
- Dual Screen:i5-480M
- X1 Intel® Core™ i5 i5-2520M:i5-2520M
Processor boost frequency
- Dual Screen:2.93 GHz
- X1 Intel® Core™ i5 i5-2520M:3.2 GHz
Processor frequency
- Dual Screen:2.66 GHz
- X1 Intel® Core™ i5 i5-2520M:2.5 GHz
System bus rate
- Dual Screen:2.5 GT/s
- X1 Intel® Core™ i5 i5-2520M:5 GT/s
Processor socket
- Dual Screen:BGA 1288
- X1 Intel® Core™ i5 i5-2520M:Socket 988
Processor codename
- Dual Screen:Arrandale
- X1 Intel® Core™ i5 i5-2520M:Sandy Bridge

Side by side

Differences highlightedShow differences only

Comparison of Dual Screen, X1
187 specifications	A Acer Dual Screen View product	B Lenovo X1 Intel® Core™ i5 i5-2520M Model X1 View product
Display1 differ
Display diagonalDiffers	35.6 cm (14")	33.8 cm (13.3")
TouchscreenKnown for one	Yes	Unknown — not stated by the source
HD typeKnown for one	HD	Unknown — not stated by the source
Display number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
LED backlightKnown for one	Yes	Unknown — not stated by the source
Display brightnessKnown for one	Unknown — not stated by the source	350 cd/m²
Processor12 differ
Processor generationDiffers	4th gen Intel® Core™ i5	2nd gen Intel® Core™ i5
Processor modelDiffers	i5-480M	i5-2520M
Processor boost frequencyDiffers	2.93 GHz	3.2 GHz
Processor frequencyDiffers	2.66 GHz	2.5 GHz
System bus rateDiffers	2.5 GT/s	5 GT/s
Processor socketDiffers	BGA 1288	Socket 988
Processor seriesDiffers	Intel Core i5-400 Series	Intel Core i5-2500 Mobile Series
Processor codenameDiffers	Arrandale	Sandy Bridge
SteppingDiffers	K0	J1
TjunctionDiffers	105 °C	100 °C
PCI Express configurationsDiffers	1x16	1x16, 2x8, 1x8+2x4
Number of Processing Die TransistorsKnown for one	382 M	Unknown — not stated by the source
Processing Die sizeKnown for one	81 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	20	25
Memory1 differ
Memory clock speedDiffers	1066 MHz	1333 MHz
Internal memoryKnown for one	Unknown — not stated by the source	8 GB
Internal memory typeKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory slotsKnown for one	Unknown — not stated by the source	1x SO-DIMM
Storage1 differ
Total storage capacityDiffers	640 GB	160 GB
Storage mediaKnown for one	HDD	Unknown — not stated by the source
HDD capacityKnown for one	640 GB	Unknown — not stated by the source
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	160 GB
Optical drive typeKnown for one	Unknown — not stated by the source	No
Card reader integratedKnown for one	Unknown — not stated by the source	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
Graphics3 differ
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 3000
On-board graphics card base frequencyDiffers	500 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	766 MHz	1300 MHz
Maximum graphics card memoryKnown for one	0.128 GB	Unknown — not stated by the source
Graphics cardKnown for one	HD Graphics	Unknown — not stated by the source
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x116
Audioidentical
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Audio systemKnown for one	Unknown — not stated by the source	Dolby Home Theater
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Cameraidentical
Front camera resolutionKnown for one	1280 x 1024 pixels	Unknown — not stated by the source
Rear cameraKnown for one	No	Unknown — not stated by the source
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Swivel webcamKnown for one	Unknown — not stated by the source	No
Network1 differ
Networking featuresDiffers	Gigabit Ethernet	Gigabit Ethernet, WLAN
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
Data networkKnown for one	Not supported	Unknown — not stated by the source
SIM card supportKnown for one	No	Unknown — not stated by the source
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Integrated 4G WiMAXKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	2	1
Micro-USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
Mini HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Mini-USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	0	Unknown — not stated by the source
TV-in portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	0
HDMI versionKnown for one	Unknown — not stated by the source	1.4a
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Thunderbolt ports quantityKnown for one	Unknown — not stated by the source	0
S/PDIF out portKnown for one	Unknown — not stated by the source	No
Performanceidentical
Electronic compassKnown for one	No	Unknown — not stated by the source
GPS (satellite)Known for one	No	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Bundled softwareKnown for one	Microsoft Office Starter, Bing Bar, Windows Live Essentials	Unknown — not stated by the source
Processor special features16 differ
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
Graphics & IMC lithographyDiffers	45 nm	32 nm
Intel Clear Video TechnologyDiffers	Yes	No
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	1.0	2.0
Physical Address Extension (PAE)Known for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	52952	52229
Processor codeDiffers	SLC26	SR048
Processor package sizeDiffers	rPGA 37.5x 37.5, BGA 34x28	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction setsDiffers	SSE4.1, SSE4.2	AVX
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Batteryidentical
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Number of battery cellsKnown for one	4	Unknown — not stated by the source
Battery capacityKnown for one	3000 mAh	Unknown — not stated by the source
Battery life (max)Known for one	Unknown — not stated by the source	5.2 h
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Security2 differ
Cable lock slotDiffers	Yes	No
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Fingerprint readerDiffers	No	Yes
Trusted Platform Module (TPM)Known for one	No	Unknown — not stated by the source
HDD user passwordKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Weight & dimensions3 differ
WeightDiffers	2.8 kg	1.69 kg
WidthDiffers	347 mm	337 mm
DepthDiffers	249 mm	231 mm
HeightKnown for one	32 mm	Unknown — not stated by the source
Height (front)Known for one	Unknown — not stated by the source	1.65 cm
Height (rear)Known for one	Unknown — not stated by the source	2.13 cm
Videoidentical
HD-ReadyKnown for one	Yes	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	No	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Assisted GPS (A-GPS)Known for one	No	Unknown — not stated by the source
Internal modemKnown for one	No	Unknown — not stated by the source
Power requirementsKnown for one	Unknown — not stated by the source	100 - 240V
Power supply typeKnown for one	Unknown — not stated by the source	AC

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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