Product comparison · 2 laptops

Lenovo ThinkPad T550 vs Lenovo ThinkPad X250

168specifications compared
31differ
137identical
17known for one product only

Key differences

Display diagonal
- ThinkPad T550:39.6 cm (15.6")
- ThinkPad X250:31.8 cm (12.5")
Display resolution
- ThinkPad T550:1920 x 1080 pixels
- ThinkPad X250:1366 x 768 pixels
Display brightness
- ThinkPad T550:300 cd/m²
- ThinkPad X250:200 cd/m²
Processor family
- ThinkPad T550:Intel® Core™ i7
- ThinkPad X250:Intel® Core™ i5
Processor generation
- ThinkPad T550:5th gen Intel® Core™ i7
- ThinkPad X250:5th gen Intel® Core™ i5
Processor model
- ThinkPad T550:i7-5600U
- ThinkPad X250:i5-5300U
Processor boost frequency
- ThinkPad T550:3.2 GHz
- ThinkPad X250:2.9 GHz
Processor frequency
- ThinkPad T550:2.6 GHz
- ThinkPad X250:2.3 GHz

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad T550, ThinkPad X250
185 specifications	A Lenovo ThinkPad T550 View product	B Lenovo ThinkPad X250 View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing material	Glass fibre, Plastic	Glass fibre, Plastic
Market positioningKnown for one	Business	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	39.6 cm (15.6")	31.8 cm (12.5")
Display resolutionDiffers	1920 x 1080 pixels	1366 x 768 pixels
Touchscreen	No	No
HD typeKnown for one	Full HD	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessDiffers	300 cd/m²	200 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	300:1
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	5th gen Intel® Core™ i7	5th gen Intel® Core™ i5
Processor modelDiffers	i7-5600U	i5-5300U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.2 GHz	2.9 GHz
Processor frequencyDiffers	2.6 GHz	2.3 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	L3	L3
Processor socket	BGA 1168	BGA 1168
Processor lithography	14 nm	14 nm
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core i7-5600 Mobile Series	Intel® Core™ i5-5300 Mobile Series
Processor codename	Broadwell	Broadwell
Bus type	DMI2	DMI2
FSB Parity	No	No
Stepping	F0	F0
Thermal Design Power (TDP)	15 W	15 W
Configurable TDP-down	7.5 W	7.5 W
Configurable TDP-down frequency	0.6 GHz	0.6 GHz
Tjunction	105 °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
Memory5 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3L-SDRAM	DDR3L-SDRAM
Memory clock speed	1600 MHz	1600 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	1 x 8 GB	1 x 4 GB
Memory slotsDiffers	2x SO-DIMM	1x SO-DIMM
Maximum internal memoryDiffers	16 GB	8 GB
Maximum internal memory (64-bit)Differs	16 GB	8 GB
Storage2 differ
Total storage capacityDiffers	256 GB	500 GB
Storage mediaDiffers	SSD	HDD
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	256 GB	Unknown — not stated by the source
SSD interfaceKnown for one	SATA III	Unknown — not stated by the source
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	500 GB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA III
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Graphics1 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 model	Intel® HD Graphics 5500	Intel® HD Graphics 5500
Maximum on-board graphics card memory	16 GB	16 GB
On-board graphics card base frequency	300 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	950 MHz	900 MHz
On-board graphics card DirectX version	11.2	11.2
On-board graphics card ID	0x1616	0x1616
Maximum resolution	3840 x 2160 pixels	3840 x 2160 pixels
Graphics card Open GL support	Yes	Yes
Audio2 differ
Audio systemDiffers	Dolby Home Theater, Advanced Audio	Dolby Advanced Audio
Number of built-in speakers	2	2
Speaker powerDiffers	1 W	1.5 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Optical driveidentical
LightScribe	No	No
Networkidentical
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
Bluetooth version	4.0	4.0
Ports & interfaces1 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	3	2
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantity	0	0
Mini DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Thunderbolt ports quantity	0	0
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Docking connector	Yes	Yes
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Performanceidentical
Motherboard chipset	Intel SoC	Intel SoC
Keyboard1 differ
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlit	Yes	Yes
Numeric keypadDiffers	Yes	No
Island-style keyboardKnown for one	Yes	Unknown — not stated by the source
Spill-resistant keyboard	Yes	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features3 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
Graphics & IMC lithography	14 nm	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	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 Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) version	1.00	1.00
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-NI	Yes	Yes
Intel TSX-NI version	1.00	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)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	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® My WiFi Technology (Intel® MWT)	No	No
Intel® OS Guard	Yes	Yes
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	85215	85213
Processor codeDiffers	SR23V	SR23X
Processor package size	40 x 24 x 1.3 mm	40 x 24 x 1.3 mm
Supported instruction setsDiffers	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Battery2 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	3+3	6
Battery life (max)Known for one	14.8 h	Unknown — not stated by the source
Battery capacityKnown for one	Unknown — not stated by the source	48 Wh
Poweridentical
AC adapter power	45 W	45 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Fingerprint reader	Yes	Yes
Trusted Platform Module (TPM)	Yes	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
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	GREENGUARD	GREENGUARD
Wi-Fi certifiedKnown for one	Unknown — not stated by the source	Yes
Sustainabilityidentical
Sustainability certificates	EPEAT Gold, ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	2.13 kg	1.47 kg
WidthDiffers	380.6 mm	305.5 mm
DepthDiffers	258.2 mm	208.5 mm
HeightDiffers	22.4 mm	20.3 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Power cord included	Yes	Yes
Other featuresidentical
Intel segment tagging	Home office, Small Business	Home office, Small Business

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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