Product comparison · 2 laptops

Lenovo ThinkPad E550 vs Lenovo ThinkPad E555

102specifications compared
31differ
71identical
83known for one product only

Key differences

Product colour
- ThinkPad E550:Black, Graphite
- ThinkPad E555:Black
Processor manufacturer
- ThinkPad E550:Intel
- ThinkPad E555:AMD
Processor family
- ThinkPad E550:Intel® Core™ i3
- ThinkPad E555:AMD A6
Processor model
- ThinkPad E550:i3-4005U
- ThinkPad E555:A6-7000
Processor threads
- ThinkPad E550:4
- ThinkPad E555:2
Processor frequency
- ThinkPad E550:1.7 GHz
- ThinkPad E555:2.2 GHz
Processor cache
- ThinkPad E550:3 MB
- ThinkPad E555:1 MB
Processor cache type
- ThinkPad E550:Smart Cache
- ThinkPad E555:L2

Side by side

Differences highlightedShow differences only

Comparison of ThinkPad E550, ThinkPad E555
185 specifications	A Lenovo ThinkPad E550 View product	B Lenovo ThinkPad E555 View product
Design1 differ
Product colourDiffers	Black, Graphite	Black
Housing materialKnown for one	Plastic	Unknown — not stated by the source
Displayidentical
Display brightnessKnown for one	200 cd/m²	Unknown — not stated by the source
Processor7 differ
Processor manufacturerDiffers	Intel	AMD
Processor familyDiffers	Intel® Core™ i3	AMD A6
Processor generationKnown for one	4th gen Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-4005U	A6-7000
Processor threadsDiffers	4	2
Processor frequencyDiffers	1.7 GHz	2.2 GHz
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor cacheDiffers	3 MB	1 MB
Processor cache typeDiffers	Smart Cache	L2
Processor socketKnown for one	BGA 1168	Unknown — not stated by the source
Processor lithographyKnown for one	22 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel® Core™ i3-4000 Mobile Series	Unknown — not stated by the source
Processor codenameKnown for one	Haswell	Unknown — not stated by the source
Bus typeKnown for one	DMI	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	15 W	Unknown — not stated by the source
TjunctionKnown for one	100 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	10	Unknown — not stated by the source
PCI Express configurationsKnown for one	4x1, 1x4	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Processor boost frequencyKnown for one	Unknown — not stated by the source	3 GHz
Memory2 differ
Internal memoryDiffers	8 GB	4 GB
Memory layout (slots x size)Differs	1 x 8 GB	1 x 4 GB
Storage2 differ
HDD interfaceDiffers	SATA III	SATA
HDD speedDiffers	7200 RPM	5400 RPM
Graphics2 differ
On-board graphics card familyDiffers	Intel® HD Graphics	AMD Radeon R4
On-board graphics card modelDiffers	Intel® HD Graphics 4400	AMD Radeon R4
Maximum on-board graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	200 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	950 MHz	Unknown — not stated by the source
On-board graphics card DirectX versionKnown for one	12	Unknown — not stated by the source
On-board graphics card IDKnown for one	0xA16	Unknown — not stated by the source
Maximum resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Graphics card Open GL supportKnown for one	Yes	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Dolby Advanced Audio v4	Dolby Advanced
Speakers manufacturerKnown for one	JBL	Unknown — not stated by the source
Speaker powerKnown for one	2 W	Unknown — not stated by the source
Cameraidentical
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
Network1 differ
Wi-Fi standardsDiffers	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Ports & interfaces1 differ
Docking connectorDiffers	Yes	No
Total number of SATA connectorsKnown for one	2	Unknown — not stated by the source
Number of SATA III connectorsKnown for one	2	Unknown — not stated by the source
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
Headphone outputsKnown for one	Unknown — not stated by the source	0
Microphone inKnown for one	Unknown — not stated by the source	No
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Clickpad
Island-style keyboardKnown for one	Yes	Unknown — not stated by the source
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Full-size keyboardKnown for one	Unknown — not stated by the source	Yes
Softwareidentical
Recovery operating systemKnown for one	Unknown — not stated by the source	Windows 8.1
Processor special features11 differ
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options availableKnown for one	No	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Yes	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	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown 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 ME Firmware VersionKnown for one	9.5	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Small Business Advantage (SBA) versionKnown for one	0.00	Unknown — not stated by the source
Intel Smart Connect TechnologyDiffers	Yes	No
Intel Smart Connect Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Response Technology versionKnown for one	0.00	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 Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	Yes	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
Intel® High Definition Audio (Intel® HD Audio)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® Quick Sync Video TechnologyDiffers	Yes	No
Intel® Rapid Start TechnologyDiffers	Yes	No
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Virtualization Technology (Intel® VT)Known for one	VT-x	Unknown — not stated by the source
Processor ARK IDKnown for one	75105	Unknown — not stated by the source
Processor package sizeKnown for one	40 x 24 x 1.5 mm	Unknown — not stated by the source
Supported instruction setsKnown for one	AVX 2.0, SSE4.1, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
UARTKnown for one	Yes	Unknown — not stated by the source
Conflict-Free processorKnown for one	Yes	Unknown — not stated by the source
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Battery1 differ
Battery life (max)Differs	9 h	6.3 h
Security1 differ
Cable lock slotDiffers	Yes	No
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Trusted Platform Module (TPM)Known 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
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
Packaging contentidentical
ManualKnown for one	Unknown — not stated by the source	Yes
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	AMD A76M FCH

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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