Product comparison · 2 laptops

Lenovo P51s + ThinkPad Stack Mobile Projector vs Lenovo T470 + ThinkPad USB Dock

171specifications compared
28differ
143identical
11known for one product only

Key differences

Product type
- P51s + ThinkPad Stack Mobile Projector:Mobile workstation
- T470 + ThinkPad USB Dock:Laptop
Market positioning
- P51s + ThinkPad Stack Mobile Projector:High performance
- T470 + ThinkPad USB Dock:Business
Display diagonal
- P51s + ThinkPad Stack Mobile Projector:39.6 cm (15.6")
- T470 + ThinkPad USB Dock:35.6 cm (14")
Processor family
- P51s + ThinkPad Stack Mobile Projector:Intel® Core™ i7
- T470 + ThinkPad USB Dock:Intel® Core™ i5
Processor generation
- P51s + ThinkPad Stack Mobile Projector:7th gen Intel® Core™ i7
- T470 + ThinkPad USB Dock:7th gen Intel® Core™ i5
Processor model
- P51s + ThinkPad Stack Mobile Projector:i7-7500U
- T470 + ThinkPad USB Dock:i5-7200U
Processor boost frequency
- P51s + ThinkPad Stack Mobile Projector:3.5 GHz
- T470 + ThinkPad USB Dock:3.1 GHz
Processor frequency
- P51s + ThinkPad Stack Mobile Projector:2.7 GHz
- T470 + ThinkPad USB Dock:2.5 GHz

Side by side

Differences highlightedShow differences only

Comparison of P51s + ThinkPad Stack Mobile Projector, T470 + ThinkPad USB Dock
182 specifications	A Lenovo P51s + ThinkPad Stack Mobile Projector View product	B Lenovo T470 + ThinkPad USB Dock View product
Design3 differ
Product typeDiffers	Mobile workstation	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialDiffers	Glass fibre, Plastic	Glass-reinforced plastic (GRP), Glass fibre
Market positioningDiffers	High performance	Business
Display1 differ
Display diagonalDiffers	39.6 cm (15.6")	35.6 cm (14")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Touchscreen	No	No
HD type	Full HD	Full HD
Panel type	IPS	IPS
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display surface	Matt	Matt
Screen shape	Flat	Flat
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	7th gen Intel® Core™ i7	7th gen Intel® Core™ i5
Processor modelDiffers	i7-7500U	i5-7200U
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	3.5 GHz	3.1 GHz
Processor frequencyDiffers	2.7 GHz	2.5 GHz
System bus rate	4 GT/s	4 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1356	BGA 1356
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor codename	Kaby Lake	Kaby Lake
Bus type	OPI	OPI
Stepping	H0	H0
Thermal Design Power (TDP)	15 W	15 W
Configurable TDP-up frequencyDiffers	2.9 GHz	2.7 GHz
Configurable TDP-up	25 W	25 W
Configurable TDP-down	7.5 W	7.5 W
Configurable TDP-down frequency	0.8 GHz	0.8 GHz
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	12	12
PCI Express configurations	1x2+2x1, 1x4, 2x2, 4x1	1x2+2x1, 1x4, 2x2, 4x1
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	16 GB	8 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory clock speed	2133 MHz	2133 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	1 x 16 GB	1 x 8 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	32 GB	32 GB
Maximum internal memory (64-bit)	32 GB	32 GB
Storage2 differ
Total storage capacityDiffers	512 GB	256 GB
Storage media	SSD	SSD
Number of SSDs installed	1	1
SSD capacityDiffers	512 GB	256 GB
SSD form factor	M.2	M.2
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
Graphics3 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	NVIDIA® Quadro® M520	Not available
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
Discrete graphics memory typeKnown for one	GDDR5	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 620	Intel® HD Graphics 620
Maximum on-board graphics card memory	32 GB	32 GB
On-board graphics card base frequency	300 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	1050 MHz	1000 MHz
On-board graphics card DirectX version	12.0	12.0
On-board graphics card OpenGL version	4.4	4.4
On-board graphics card ID	0x5916	0x5916
Audioidentical
Audio chip	Realtek ALC3268	Realtek ALC3268
Number of built-in speakers	2	2
Speaker power	2 W	2 W
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera signal format	720p	720p
Front camera resolutionKnown for one	Unknown — not stated by the source	1280 x 720 pixels
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	4.1	4.1
Ports & interfacesidentical
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
HDMI version	1.4b	1.4b
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Thunderbolt 3 ports quantity	0	0
Headphone outputs	0	0
Combo headphone/mic port	Yes	Yes
Microphone in	No	No
Docking connector	Yes	Yes
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
SmartCard slotKnown for one	Unknown — not stated by the source	Yes
Keyboard1 differ
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlit	Yes	Yes
Numeric keypadDiffers	Yes	No
Spill-resistant keyboard	Yes	Yes
Windows keys	Yes	Yes
Full-size keyboardKnown for one	Unknown — not stated by the source	No
Softwareidentical
Operating system installed	Windows 10 Pro	Windows 10 Pro
Operating system architecture	64-bit	64-bit
Processor special features2 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 Enhanced Halt State	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)	No	No
Intel Stable Image Platform Program (SIPP) version	0.00	0.00
Intel TSX-NI	No	No
Intel TSX-NI version	0.00	0.00
Intel Trusted Execution Technology	No	No
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® 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)	Yes	Yes
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 Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	95451	95443
Processor codeDiffers	SR2ZV	SR2ZU
Processor package size	42 x 24 mm	42 x 24 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
Battery2 differ
Number of battery cellsDiffers	4+6	3+3
Battery life (max)Differs	26.8 h	13.9 h
Power1 differ
AC adapter powerDiffers	65 W	45 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Fingerprint reader	Yes	Yes
Trusted Platform Module (TPM)	Yes	Yes
Password protection	Yes	Yes
Password protection type	HDD, Power on, Supervisor	HDD, Power on, Supervisor
Certificatesidentical
Compliance certificates	RoHS	RoHS
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Weight & dimensions3 differ
WeightDiffers	2.18 kg	1.65 kg
WidthDiffers	365.8 mm	336.6 mm
DepthDiffers	252.8 mm	232.5 mm
Height (front)Known for one	2 cm	Unknown — not stated by the source
Height (rear)Known for one	2.02 cm	Unknown — not stated by the source
HeightKnown for one	Unknown — not stated by the source	19.9 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord included	Yes	Yes
Quick start guide	Yes	Yes
Other featuresidentical
3D	No	No
Intel segment taggingKnown for one	Unknown — not stated by the source	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.

More laptop comparisons

All laptop comparisons