Product comparison · 2 laptops

Lenovo ThinkPad E440 vs Lenovo X240 DOS CH

144specifications compared
52differ
92identical
57known for one product only

Key differences

Display diagonal
- ThinkPad E440:35.6 cm (14")
- X240 DOS CH:31.8 cm (12.5")
Display resolution
- ThinkPad E440:1366 x 768 pixels
- X240 DOS CH:1920 x 1080 pixels
Touchscreen
- ThinkPad E440:Yes
- X240 DOS CH:No
Processor family
- ThinkPad E440:Intel® Core™ i3
- X240 DOS CH:Intel® Core™ i5
Processor generation
- ThinkPad E440:4th gen Intel® Core™ i3
- X240 DOS CH:4th gen Intel® Core™ i5
Processor model
- ThinkPad E440:i3-4000M
- X240 DOS CH:i5-4300U
Processor boost frequency
- ThinkPad E440:3.2 GHz
- X240 DOS CH:2.9 GHz
Processor frequency
- ThinkPad E440:2.4 GHz
- X240 DOS CH:1.9 GHz

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad E440, X240 DOS CH
201 specifications	A Lenovo ThinkPad E440 View product	B Lenovo X240 DOS CH View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialKnown for one	Plastic	Unknown — not stated by the source
Market positioningKnown for one	Business	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
TouchscreenDiffers	Yes	No
HD typeKnown for one	Unknown — not stated by the source	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Touchscreen typeKnown for one	Capacitive	Unknown — not stated by the source
Touch technologyKnown for one	Multi-touch	Unknown — not stated by the source
Processor12 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	4th gen Intel® Core™ i3	4th gen Intel® Core™ i5
Processor modelDiffers	i3-4000M	i5-4300U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.2 GHz	2.9 GHz
Processor frequencyDiffers	2.4 GHz	1.9 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	PGA946	BGA 1168
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel® Core™ i3-4000 Mobile Series	Intel Core i5-4300 Mobile series
Processor codename	Haswell	Haswell
Bus typeDiffers	DMI	DMI2
FSB Parity	No	No
SteppingDiffers	C0	D0
Thermal Design Power (TDP)Differs	37 W	15 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	16	12
PCI Express configurationsDiffers	1x16, 2x8, 1x8+2x4	4x1, 2x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
L3 cacheKnown for one	3 MB	Unknown — not stated by the source
Memory4 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory layout (slots x size)Differs	1 x 4 GB	1 x 8 GB
Memory slotsDiffers	2x SO-DIMM	1x SO-DIMM
Maximum internal memoryDiffers	16 GB	8 GB
Memory form factorKnown for one	SO-DIMM	Unknown — not stated by the source
Storage3 differ
Total storage capacityDiffers	500 GB	256 GB
Storage mediaDiffers	HDD	SSD
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	256 GB
SSD interfaceKnown for one	Unknown — not stated by the source	SATA III
Optical drive typeDiffers	DVD±RW	No
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
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	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Graphics5 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 modelDiffers	Intel® HD Graphics 4600	Intel® HD Graphics 4400
Maximum on-board graphics card memoryDiffers	2 GB	1.74 GB
On-board graphics card base frequencyDiffers	400 MHz	200 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card DirectX versionDiffers	11.1	12
On-board graphics card IDDiffers	0x416	0xA16
Audio1 differ
Audio systemDiffers	Dolby Advanced Audio v2	HD
Built-in microphone	Yes	Yes
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Cameraidentical
Front camera	Yes	Yes
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Optical driveidentical
LightScribe	No	No
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Wi-Fi 5 (802.11ac)
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
Near Field Communication (NFC)Known for one	Unknown — not stated by the source	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	1	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
eSATA/USB 2.0 ports quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone in	No	No
Docking connectorDiffers	No	Yes
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Number of SATA III connectorsKnown for one	Unknown — not stated by the source	4
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
Performance1 differ
Motherboard chipsetDiffers	Intel® HM87	Intel® QM87
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Numeric keypad	No	No
Windows keys	Yes	Yes
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTZ
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 8.1 Pro	FreeDOS
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Processor special features11 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 Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt StateDiffers	No	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware VersionKnown for one	Unknown — not stated by the source	9.5
Intel Rapid Storage TechnologyDiffers	No	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 TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Smart Connect Technology 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 Stable Image Platform Program (SIPP)Known for one	Unknown — not stated by the source	Yes
Intel Stable Image Platform Program (SIPP) 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 TechnologyDiffers	No	Yes
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)Differs	No	Yes
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	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)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Smart Response TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	75104	76308
Processor codeDiffers	SR1HC	SR1ED
Processor package sizeDiffers	37.5 x 37.5 x 4.7 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
Battery3 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Number of battery cellsDiffers	6	3+3
Battery capacityDiffers	48 Wh	47 Wh
Battery life (max)Known for one	6 h	Unknown — not stated by the source
Power1 differ
AC adapter powerDiffers	65 W	45 W
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
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
Weight & dimensions3 differ
WeightDiffers	2.43 kg	1.42 kg
WidthDiffers	344 mm	305.5 mm
DepthDiffers	239 mm	208.5 mm
HeightKnown for one	Unknown — not stated by the source	19.9 mm
Height (front)Known for one	2.97 cm	Unknown — not stated by the source
Height (rear)Known for one	3.23 cm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord includedKnown for one	Unknown — not stated by the source	Yes
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
64-bit computingKnown for one	Yes	Unknown — not stated by the source
Intel segment taggingKnown for one	Home office, Small Business	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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