Product comparison · 2 laptops

Lenovo L540 + ThinkPad Pro Dock vs Lenovo ThinkPad Helix 2nd Gen

131specifications compared
61differ
70identical
87known for one product only

Key differences

Product type
- L540 + ThinkPad Pro Dock:Laptop
- ThinkPad Helix 2nd Gen:Hybrid (2-in-1)
Form factor
- L540 + ThinkPad Pro Dock:Clamshell
- ThinkPad Helix 2nd Gen:Convertible (Detachable)
Display diagonal
- L540 + ThinkPad Pro Dock:39.6 cm (15.6")
- ThinkPad Helix 2nd Gen:29.5 cm (11.6")
Display resolution
- L540 + ThinkPad Pro Dock:1366 x 768 pixels
- ThinkPad Helix 2nd Gen:1920 x 1080 pixels
Touchscreen
- L540 + ThinkPad Pro Dock:No
- ThinkPad Helix 2nd Gen:Yes
HD type
- L540 + ThinkPad Pro Dock:HD
- ThinkPad Helix 2nd Gen:Full HD
Display surface
- L540 + ThinkPad Pro Dock:Matt
- ThinkPad Helix 2nd Gen:Gloss
Display brightness
- L540 + ThinkPad Pro Dock:220 cd/m²
- ThinkPad Helix 2nd Gen:370 cd/m²

Side by side

Differences highlightedShow differences only

Comparison of L540 + ThinkPad Pro Dock, ThinkPad Helix 2nd Gen
218 specifications	A Lenovo L540 + ThinkPad Pro Dock View product	B Lenovo ThinkPad Helix 2nd Gen View product
Design2 differ
Product typeDiffers	Laptop	Hybrid (2-in-1)
Form factorDiffers	Clamshell	Convertible (Detachable)
Housing materialKnown for one	Unknown — not stated by the source	Aluminium
Display7 differ
Display diagonalDiffers	39.6 cm (15.6")	29.5 cm (11.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
TouchscreenDiffers	No	Yes
HD typeDiffers	HD	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
Display surfaceDiffers	Matt	Gloss
Display brightnessDiffers	220 cd/m²	370 cd/m²
Contrast ratio (typical)Differs	500:1	800:1
Processor12 differ
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ M
Processor generationDiffers	4th gen Intel® Core™ i3	Intel® Core™ m-5xxx
Processor modelDiffers	i3-4100M	M-5Y10
Processor boost frequencyKnown for one	Unknown — not stated by the source	2 GHz
Processor frequencyDiffers	2.5 GHz	0.8 GHz
Processor cacheDiffers	3 MB	4 MB
Processor lithographyDiffers	22 nm	14 nm
Processor seriesDiffers	Intel Core i3-4100 Mobile Series	Intel Core M-5Y Mobile series
Processor codenameDiffers	Haswell	Broadwell
Thermal Design Power (TDP)Differs	37 W	4.5 W
TjunctionDiffers	100 °C	95 °C
Maximum number of PCI Express lanesDiffers	16	12
PCI Express configurationsDiffers	1x16, 1x8+2x4, 2x8	1x2, 1x4
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cache typeKnown for one	Smart Cache	Unknown — not stated by the source
Processor socketKnown for one	PGA946	Unknown — not stated by the source
Bus typeKnown for one	DMI2	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
SteppingKnown for one	C0	Unknown — not stated by the source
Memory4 differ
Internal memory typeDiffers	DDR3L-SDRAM	LPDDR3-SDRAM
Memory form factorDiffers	SO-DIMM	On-board
Maximum internal memoryDiffers	16 GB	4 GB
Maximum internal memory (64-bit)Differs	16 GB	4 GB
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	500 GB	128 GB
Storage mediaDiffers	HDD	SSD
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	128 GB
SSD interfaceKnown for one	Unknown — not stated by the source	M.2
Optical drive typeDiffers	DVD±RW	No
Compatible memory cardsDiffers	MMC, SD, SDHC, SDXC	MicroSD (TransFlash), MicroSDHC, MicroSDXC
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
HDD interfaceKnown for one	SATA III	Unknown — not stated by the source
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Graphics4 differ
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
On-board graphics card modelDiffers	Intel® HD Graphics 4600	Intel® HD Graphics 5300
Maximum on-board graphics card memoryDiffers	2 GB	16 GB
On-board graphics card base frequencyDiffers	400 MHz	100 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	800 MHz
On-board graphics card IDKnown for one	0x416	Unknown — not stated by the source
Audio2 differ
Audio systemDiffers	Dolby Advanced	Dolby Home Theater v4
Speaker powerDiffers	2 W	1.4 W
Audio chipKnown for one	Realtek ALC3232	Unknown — not stated by the source
Camera2 differ
Front camera resolution (numeric)Differs	1 MP	2 MP
Front camera resolutionDiffers	1280 x 720 pixels	1920 x 1080 pixels
Rear cameraKnown for one	Unknown — not stated by the source	Yes
Rear camera resolution (numeric)Known for one	Unknown — not stated by the source	5 MP
Front camera signal formatKnown for one	720p	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network2 differ
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Wi-Fi 5 (802.11ac)
Ethernet LANDiffers	Yes	No
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers	1	0
DVI portKnown for one	Unknown — not stated by the source	No
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	0
Micro HDMI ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
S/PDIF out portKnown for one	Unknown — not stated by the source	No
Microphone inKnown for one	Unknown — not stated by the source	No
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantityKnown for one	Unknown — not stated by the source	0
CardBus PCMCIA slot typeKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	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
USB 2.0 ports quantityKnown for one	3	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
Mini DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
Performanceidentical
AccelerometerKnown for one	Unknown — not stated by the source	Yes
Ambient light sensorKnown for one	Unknown — not stated by the source	Yes
Keyboard2 differ
Pointing deviceDiffers	Trackpad	Touchpad
Keyboard backlitKnown for one	Unknown — not stated by the source	No
Numeric keypadDiffers	Yes	No
Island-style keyboardKnown for one	Unknown — not stated by the source	Yes
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Software2 differ
Operating system installedDiffers	Windows 7 Professional	Windows 8.1 Pro
Trial softwareDiffers	Microsoft Office	Norton Internet Security
Bundled softwareKnown for one	Unknown — not stated by the source	Lenovo Support Lenovo Companion ThinkVantage System Update Lenovo Reach Hightail - Metro Amazon Kindle Nitro Pro Evernote Skype Rara Streaming Norton Studio
Recovery operating systemKnown for one	Windows 8.1 Pro	Unknown — not stated by the source
Processor special features12 differ
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Stable Image Platform Program (SIPP)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® OS GuardKnown for one	Unknown — not stated by the source	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Response TechnologyDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Intel® Virtualization Technology (Intel® VT)Differs	VT-x	VT-d, VT-x
Processor ARK IDDiffers	76346	83610
Processor package sizeDiffers	37.5 x 37.5 x 4.7 mm	30 x 16.5 mm
Supported instruction setsDiffers	AVX 2.0	AVX 2.0, SSE4.1, SSE4.2
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 Enhanced Halt StateKnown for one	No	Unknown — not stated by the source
Intel Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel TSX-NIKnown for one	No	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	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
Processor codeKnown for one	SR1HB	Unknown — not stated by the source
Battery1 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Number of battery cellsKnown for one	Unknown — not stated by the source	2
Battery capacityKnown for one	Unknown — not stated by the source	35 Wh
Battery life (max)Known for one	Unknown — not stated by the source	8 h
Power1 differ
AC adapter powerDiffers	65 W	36 W
Securityidentical
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Trusted Platform Module (TPM)Known for one	Yes	Unknown — not stated by the source
Certificatesidentical
Wi-Fi certifiedKnown for one	Unknown — not stated by the source	Yes
CertificationKnown for one	MIL-STD-810G	Unknown — not stated by the source
Weight & dimensions2 differ
WeightKnown for one	Unknown — not stated by the source	1.35 kg
WidthDiffers	377 mm	301.1 mm
DepthDiffers	247 mm	215.6 mm
HeightKnown for one	Unknown — not stated by the source	25.4 mm
Weight (tablet mode)Known for one	Unknown — not stated by the source	822 g
Width (tablet mode)Known for one	Unknown — not stated by the source	30.1 cm
Depth (tablet mode)Known for one	Unknown — not stated by the source	19.2 cm
Height (tablet mode)Known for one	Unknown — not stated by the source	9.3 mm
Packaging contentidentical
Stylus penKnown for one	Unknown — not stated by the source	Yes
Warranty cardKnown for one	Unknown — not stated by the source	Yes
Docking station includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
3DKnown for one	Unknown — not stated by the source	No
Docking stationidentical
Docking station Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Docking station USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	1	Unknown — not stated by the source
Docking station VGA (D-Sub) portKnown for one	Yes	Unknown — not stated by the source
Docking station DisplayPortKnown 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.

More laptop comparisons

All laptop comparisons