Product comparison · 2 laptops

Lenovo Helix 2nd Gen vs Lenovo N21 Intel® Celeron® N2840 Chromebook

121specifications compared
61differ
60identical
76known for one product only

Key differences

Product type
- Helix 2nd Gen:Hybrid (2-in-1)
- N21 Intel® Celeron® N2840 Chromebook:Chromebook
Product colour
- Helix 2nd Gen:Black, Graphite
- N21 Intel® Celeron® N2840 Chromebook:Black
Form factor
- Helix 2nd Gen:Convertible (Detachable)
- N21 Intel® Celeron® N2840 Chromebook:Clamshell
Display resolution
- Helix 2nd Gen:1920 x 1080 pixels
- N21 Intel® Celeron® N2840 Chromebook:1366 x 768 pixels
Touchscreen
- Helix 2nd Gen:Yes
- N21 Intel® Celeron® N2840 Chromebook:No
Processor family
- Helix 2nd Gen:Intel® Core™ M
- N21 Intel® Celeron® N2840 Chromebook:Intel® Celeron®
Processor model
- Helix 2nd Gen:M-5Y70
- N21 Intel® Celeron® N2840 Chromebook:N2840
Processor threads
- Helix 2nd Gen:4
- N21 Intel® Celeron® N2840 Chromebook:2

Side by side

Differences highlightedShow differences only

Comparison of Helix 2nd Gen, N21
197 specifications	A Lenovo Helix 2nd Gen View product	B Lenovo N21 Intel® Celeron® N2840 Chromebook Model N21 View product
Design3 differ
Product typeDiffers	Hybrid (2-in-1)	Chromebook
Product colourDiffers	Black, Graphite	Black
Form factorDiffers	Convertible (Detachable)	Clamshell
Housing materialKnown for one	Aluminium	Unknown — not stated by the source
Display2 differ
Display resolutionDiffers	1920 x 1080 pixels	1366 x 768 pixels
TouchscreenDiffers	Yes	No
Touchscreen typeKnown for one	Capacitive	Unknown — not stated by the source
HD typeKnown for one	Full HD	Unknown — not stated by the source
Touch technologyKnown for one	Multi-touch	Unknown — not stated by the source
Panel typeKnown for one	IPS	Unknown — not stated by the source
Display surfaceKnown for one	Gloss	Unknown — not stated by the source
Display brightnessKnown for one	370 cd/m²	Unknown — not stated by the source
Contrast ratio (typical)Known for one	800:1	Unknown — not stated by the source
Processor14 differ
Processor familyDiffers	Intel® Core™ M	Intel® Celeron®
Processor generationKnown for one	Intel® Core™ m-5xxx	Unknown — not stated by the source
Processor modelDiffers	M-5Y70	N2840
Processor threadsDiffers	4	2
Processor boost frequencyDiffers	2.6 GHz	2.58 GHz
Processor frequencyDiffers	1.1 GHz	2.16 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	4 MB	1 MB
Processor cache typeDiffers	L3	L2
Processor lithographyDiffers	14 nm	22 nm
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core M-5Y Mobile series	Intel Celeron Processor N2000 Series for Mobile
Processor codenameDiffers	Broadwell	Bay Trail
Thermal Design Power (TDP)Differs	4.5 W	7.5 W
TjunctionDiffers	95 °C	100 °C
PCI Express configurationsDiffers	2x4, 4x1	1x4
Number of Processing Die TransistorsKnown for one	12 M	Unknown — not stated by the source
Processor socketKnown for one	Unknown — not stated by the source	BGA 1170
FSB ParityKnown for one	Unknown — not stated by the source	No
SteppingKnown for one	Unknown — not stated by the source	C0
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	4.5 W
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	4
Memory2 differ
Internal memoryDiffers	8 GB	2 GB
Memory clock speedKnown for one	1600 MHz	Unknown — not stated by the source
Memory form factorKnown for one	On-board	Unknown — not stated by the source
Memory layout (slots x size)Known for one	1 x 8 GB	Unknown — not stated by the source
Maximum internal memoryDiffers	8 GB	4 GB
Maximum internal memory (64-bit)Known for one	8 GB	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	256 GB	16 GB
SSD capacityDiffers	256 GB	16 GB
Compatible memory cardsDiffers	MicroSD (TransFlash), MicroSDHC, MicroSDXC	MMC, SD
Graphics3 differ
On-board graphics card modelDiffers	Intel® HD Graphics 5300	Intel® HD Graphics
Maximum on-board graphics card memoryKnown for one	16 GB	Unknown — not stated by the source
On-board graphics card base frequencyDiffers	100 MHz	311 MHz
On-board graphics card dynamic frequency (max)Differs	850 MHz	792 MHz
On-board graphics card DirectX versionKnown for one	11.2/12	Unknown — not stated by the source
On-board graphics card OpenGL versionKnown for one	4.3	Unknown — not stated by the source
Maximum resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
On-board graphics card burst frequencyKnown for one	Unknown — not stated by the source	792 MHz
Audioidentical
Audio systemKnown for one	Dolby Home Theater v4	Unknown — not stated by the source
Speaker powerKnown for one	0.7 W	Unknown — not stated by the source
Camera1 differ
Front camera resolution (numeric)Differs	2 MP	1 MP
Auto focusKnown for one	Yes	Unknown — not stated by the source
Rear cameraKnown for one	Yes	Unknown — not stated by the source
Rear camera resolution (numeric)Known for one	5 MP	Unknown — not stated by the source
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Networkidentical
Mobile network connectionKnown for one	Yes	Unknown — not stated by the source
Mobile network generationKnown for one	4G	Unknown — not stated by the source
2G standardsKnown for one	Edge, GPRS, GSM	Unknown — not stated by the source
3G standardsKnown for one	HSPA	Unknown — not stated by the source
4G standardKnown for one	LTE	Unknown — not stated by the source
Wi-Fi data rate (max)Known for one	867 Mbit/s	Unknown — not stated by the source
Near Field Communication (NFC)Known for one	Yes	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	0	1
Ethernet LAN (RJ-45) portsKnown for one	0	Unknown — not stated by the source
HDMI ports quantityDiffers	0	1
Micro HDMI ports quantityKnown for one	1	Unknown — not stated by the source
Docking connectorDiffers	Yes	No
USB Sleep-and-ChargeKnown for one	Yes	Unknown — not stated by the source
USB Sleep-and-Charge portsKnown for one	1	Unknown — not stated by the source
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	2
Performanceidentical
AccelerometerKnown for one	Yes	Unknown — not stated by the source
Ambient light sensorKnown for one	Yes	Unknown — not stated by the source
GPS (satellite)Known for one	Yes	Unknown — not stated by the source
GyroscopeKnown for one	Yes	Unknown — not stated by the source
Keyboardidentical
Windows keysKnown for one	Yes	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 8.1 Pro	ChromeOS
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Processor special features21 differ
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Smart Connect TechnologyDiffers	No	Yes
Intel Stable Image Platform Program (SIPP)Known for one	Yes	Unknown — not stated by the source
Intel TSX-NIKnown for one	Yes	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 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)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® OS GuardKnown for one	Yes	Unknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Differs	Yes	No
Intel® Smart Response TechnologyDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Virtualization Technology (Intel® VT)Differs	VT-d, VT-x	VT-x
Processor ARK IDDiffers	83612	82103
Processor package sizeDiffers	30 x 16.5 x 1.05 mm	25 x 27 mm
Supported instruction setsKnown for one	AVX 2.0, SSE4.1, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	22 nm
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Secure Key Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Smart Connect Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Processor codeKnown for one	Unknown — not stated by the source	SR1YJ
Battery3 differ
Number of battery cellsDiffers	2	3
Battery capacityDiffers	35 Wh	36 Wh
Battery life (max)Differs	8 h	9.5 h
Poweridentical
AC adapter powerKnown for one	36 W	Unknown — not stated by the source
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
AC adapter input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Password protectionKnown for one	Yes	Unknown — not stated by the source
Password protection typeKnown for one	HDD, Power on, Supervisor	Unknown — not stated by the source
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
CertificationKnown for one	GreenGuard	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Weight & dimensions4 differ
WeightDiffers	1.38 kg	1.29 kg
WidthDiffers	301.1 mm	300 mm
DepthDiffers	192.5 mm	215 mm
HeightDiffers	9.6 mm	22.4 mm
Weight (tablet mode)Known for one	822 g	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	No	Unknown — not stated by the source
Other features1 differ
Intel segment taggingDiffers	Home office, Small Business	Education, Industrial
Supplied AC adapter typeKnown for one	AC	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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