Product comparison · 2 laptops

Dell E7440 + 630-15806 vs Lenovo ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop

152specifications compared
45differ
107identical
55known for one product only

Key differences

Product colour
- E7440 + 630-15806:Black, Silver
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:Black
Display diagonal
- E7440 + 630-15806:35.6 cm (14")
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:39.6 cm (15.6")
Processor generation
- E7440 + 630-15806:4th gen Intel® Core™ i7
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:5th gen Intel® Core™ i7
Processor model
- E7440 + 630-15806:i7-4600U
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:i7-5600U
Processor boost frequency
- E7440 + 630-15806:3.3 GHz
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:3.2 GHz
Processor frequency
- E7440 + 630-15806:2.1 GHz
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:2.6 GHz
Processor cache type
- E7440 + 630-15806:Smart Cache
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:L3
Processor lithography
- E7440 + 630-15806:22 nm
- ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop:14 nm

Side by side

Differences highlightedShow differences only

Comparison of E7440 + 630-15806, T550
207 specifications	A Dell E7440 + 630-15806 View product	B Lenovo ThinkPad T550 Intel® Core™ i7 i7-5600U Laptop Model T550 View product
Design1 differ
Product type	Laptop	Laptop
Product colourDiffers	Black, Silver	Black
Form factor	Clamshell	Clamshell
Display1 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD type	Full HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
Processor11 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generationDiffers	4th gen Intel® Core™ i7	5th gen Intel® Core™ i7
Processor modelDiffers	i7-4600U	i7-5600U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.3 GHz	3.2 GHz
Processor frequencyDiffers	2.1 GHz	2.6 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	4 MB	4 MB
Processor cache typeDiffers	Smart Cache	L3
Processor socket	BGA 1168	BGA 1168
Processor lithographyDiffers	22 nm	14 nm
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core i7-4600 Mobile series	Intel Core i7-5600 Mobile Series
Processor codenameDiffers	Haswell	Broadwell
Bus type	DMI2	DMI2
FSB Parity	No	No
SteppingDiffers	D0	F0
Thermal Design Power (TDP)	15 W	15 W
TjunctionDiffers	100 °C	105 °C
Maximum number of PCI Express lanes	12	12
PCI Express configurations	4x1, 2x4	4x1, 2x4
PCI Express slots version	2.0	2.0
ECC supported by processor	No	No
Configurable TDP-downKnown for one	Unknown — not stated by the source	7.5 W
Configurable TDP-down frequencyKnown for one	Unknown — not stated by the source	0.6 GHz
Memory1 differ
Internal memory	8 GB	8 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR3L-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)	1 x 8 GB	1 x 8 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	16 GB	16 GB
Maximum internal memory (64-bit)Known for one	16 GB	Unknown — not stated by the source
Storageidentical
Total storage capacity	256 GB	256 GB
Storage media	SSD	SSD
Number of SSDs installed	1	1
SSD capacity	256 GB	256 GB
Optical drive type	No	No
Card reader integrated	Yes	Yes
SSD interfaceKnown for one	Unknown — not stated by the source	SATA III
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
Graphics6 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 4400	Intel® HD Graphics 5500
Maximum on-board graphics card memoryDiffers	1.74 GB	16 GB
On-board graphics card base frequencyDiffers	200 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	950 MHz
On-board graphics card DirectX versionDiffers	11.2/12	11.2
On-board graphics card OpenGL versionKnown for one	4.3	Unknown — not stated by the source
On-board graphics card IDDiffers	0xA16	0x1616
Audioidentical
Audio system	HD	HD
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera resolutionKnown for one	1280 x 720 pixels	Unknown — not stated by the source
Optical driveidentical
LightScribe	No	No
Network2 differ
Mobile network connection	Yes	Yes
Mobile network generationDiffers	3G	4G
3G standardsDiffers	HSPA+	HSPA
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
2G standardsKnown for one	Unknown — not stated by the source	Edge, GPRS, GSM
4G standardKnown for one	Unknown — not stated by the source	LTE
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 5 (802.11ac)
Bluetooth versionKnown for one	Unknown — not stated by the source	4.0
Ports & interfaces3 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3	3
eSATA/USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	1
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
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 connector	Yes	Yes
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
Number of SATA III connectorsKnown for one	4	Unknown — not stated by the source
SmartCard slotKnown for one	Unknown — not stated by the source	Yes
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
Keyboard1 differ
Pointing deviceKnown for one	Touchpad	Unknown — not stated by the source
Numeric keypadDiffers	No	Yes
Windows keys	Yes	Yes
Keyboard backlitKnown for one	Unknown — not stated by the source	Yes
Spill-resistant keyboardKnown for one	Unknown — not stated by the source	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Bundled softwareKnown for one	Microsoft Office Professional 2013	Unknown — not stated by the source
Recovery operating systemKnown for one	Unknown — not stated by the source	Windows 8.1 Pro
Processor special features11 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	No	Yes
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel ME Firmware VersionKnown for one	9.5	Unknown — not stated by the source
Intel Rapid Storage TechnologyDiffers	Yes	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) version	1.00	1.00
Intel Smart Connect TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Smart Connect Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Response Technology version	1.00	1.00
Intel Stable Image Platform Program (SIPP)	Yes	Yes
Intel Stable Image Platform Program (SIPP) version	1.00	1.00
Intel TSX-NIDiffers	No	Yes
Intel TSX-NI versionDiffers	0.00	1.00
Intel Trusted Execution Technology	Yes	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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	No	Yes
Intel® High Definition Audio (Intel® HD Audio)Known for one	Yes	Unknown — not stated by the source
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® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x
Processor ARK IDDiffers	76616	85215
Processor codeDiffers	SR1EA	SR23V
Processor package sizeDiffers	40 x 24 x 1.5 mm	40 x 24 x 1.3 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	14 nm
Intel® OS GuardKnown for one	Unknown — not stated by the source	Yes
Battery1 differ
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Number of battery cellsDiffers	6	3+3
Battery capacityKnown for one	55 Wh	Unknown — not stated by the source
Battery life (max)Known for one	Unknown — not stated by the source	14.8 h
Power1 differ
AC adapter powerDiffers	65 W	45 W
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
AC adapter output currentKnown for one	3.34 A	Unknown — not stated by the source
AC adapter output voltageKnown for one	19.5 V	Unknown — not stated by the source
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Password protection	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 protection typeKnown for one	Unknown — not stated by the source	HDD, Power on, Supervisor
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-51 - 71 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating altitudeKnown for one	-15.2 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-15.2 - 10668 m	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Silver, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	1.63 kg	2.13 kg
WidthDiffers	337 mm	380.6 mm
DepthDiffers	231.5 mm	258.2 mm
HeightDiffers	21 mm	22.4 mm
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Power cord includedKnown for one	Yes	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
3DKnown for one	No	Unknown — not stated by the source
Intel segment taggingDiffers	Enterprise	Home office, Small Business
Performanceidentical
GPS (satellite)Known for one	Unknown — not stated by the source	Yes
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS

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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