Product comparison · 2 laptops

Lenovo P51 + Dock Station vs Lenovo T570 + ThinkPad USB Dock

167specifications compared
50differ
117identical
26known for one product only

Key differences

Product type
- P51 + Dock Station:Mobile workstation
- T570 + ThinkPad USB Dock:Laptop
Market positioning
- P51 + Dock Station:High performance
- T570 + ThinkPad USB Dock:Business
Processor family
- P51 + Dock Station:Intel® Core™ i7
- T570 + ThinkPad USB Dock:Intel® Core™ i5
Processor generation
- P51 + Dock Station:7th gen Intel® Core™ i7
- T570 + ThinkPad USB Dock:7th gen Intel® Core™ i5
Processor model
- P51 + Dock Station:i7-7820HQ
- T570 + ThinkPad USB Dock:i5-7200U
Processor cores
- P51 + Dock Station:4
- T570 + ThinkPad USB Dock:2
Processor threads
- P51 + Dock Station:8
- T570 + ThinkPad USB Dock:4
Processor boost frequency
- P51 + Dock Station:3.9 GHz
- T570 + ThinkPad USB Dock:3.1 GHz

Side by side

Differences highlightedShow differences only

Comparison of P51 + Dock Station, T570 + ThinkPad USB Dock
193 specifications	A Lenovo P51 + Dock Station View product	B Lenovo T570 + ThinkPad USB Dock View product
Design3 differ
Product typeDiffers	Mobile workstation	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialDiffers	Aluminium, Glass-reinforced plastic (GRP), Magnesium	Glass fibre
Market positioningDiffers	High performance	Business
Displayidentical
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
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 brightness	250 cd/m²	250 cd/m²
Contrast ratio (typical)	700:1	700:1
Processor13 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	i7-7820HQ	i5-7200U
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyDiffers	3.9 GHz	3.1 GHz
Processor frequencyDiffers	2.9 GHz	2.5 GHz
Processor cacheDiffers	8 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Intel Core i7-7800 Mobile Series	Unknown — not stated by the source
Processor codename	Kaby Lake	Kaby Lake
Bus typeDiffers	DMI3	OPI
Thermal Design Power (TDP)Differs	45 W	15 W
Configurable TDP-downDiffers	35 W	7.5 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanesDiffers	16	12
PCI Express configurationsDiffers	1x16, 1x8, 2x4, 2x8	1x2+2x1, 1x4, 2x2, 4x1
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
System bus rateKnown for one	Unknown — not stated by the source	4 GT/s
Processor socketKnown for one	Unknown — not stated by the source	BGA 1356
SteppingKnown for one	Unknown — not stated by the source	H0
Configurable TDP-up frequencyKnown for one	Unknown — not stated by the source	2.7 GHz
Configurable TDP-upKnown for one	Unknown — not stated by the source	25 W
Configurable TDP-down frequencyKnown for one	Unknown — not stated by the source	0.8 GHz
Memory6 differ
Internal memoryDiffers	16 GB	8 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory clock speedDiffers	2400 MHz	2133 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	2 x 8 GB	1 x 8 GB
Memory slotsDiffers	4x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	64 GB	32 GB
Maximum internal memory (64-bit)Differs	64 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 interfaceKnown for one	PCI Express	Unknown — not stated by the source
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
Graphics7 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	Yes	No
Discrete graphics card modelDiffers	NVIDIA® Quadro® M2200M	Not available
Discrete graphics card memoryKnown for one	4 GB	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 630	Intel® HD Graphics 620
Maximum on-board graphics card memoryDiffers	64 GB	32 GB
On-board graphics card base frequencyDiffers	350 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	1100 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 IDDiffers	0x591B	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 resolution (numeric)Known for one	1 MP	Unknown — not stated by the source
Front camera resolution	1280 x 720 pixels	1280 x 720 pixels
Front camera signal format	720p	720p
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
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 5 (802.11ac)
Ports & interfaces3 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers	1	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 quantityDiffers	0	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 quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	0	0
Thunderbolt ports quantity	0	0
Thunderbolt 3 ports quantity	0	0
Headphone outputsKnown for one	0	Unknown — not stated by the source
Combo headphone/mic port	Yes	Yes
Microphone inKnown for one	No	Unknown — not stated by the source
Docking connector	Yes	Yes
ExpressCard slotKnown for one	Yes	Unknown — not stated by the source
SmartCard slotKnown for one	Yes	Unknown — not stated by the source
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Performance1 differ
Motherboard chipsetDiffers	Intel® CM238	Intel SoC
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlit	Yes	Yes
Numeric keypad	Yes	Yes
Spill-resistant keyboard	Yes	Yes
Full-size keyboard	Yes	Yes
Windows keys	Yes	Yes
Softwareidentical
Operating system installed	Windows 10 Pro	Windows 10 Pro
Operating system architecture	64-bit	64-bit
Processor special features7 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 HD GraphicsKnown for one	Yes	Unknown — not stated by the source
Intel Identity Protection Technology version	1.00	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)Differs	Yes	No
Intel Stable Image Platform Program (SIPP) versionDiffers	1.00	0.00
Intel TSX-NIDiffers	Yes	No
Intel TSX-NI versionDiffers	1.00	0.00
Intel Trusted Execution TechnologyDiffers	Yes	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® 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® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	97496	95443
Processor package sizeDiffers	42 x 28 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
Intel® Insider™Known for one	Unknown — not stated by the source	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SR2ZU
Battery2 differ
Battery technologyKnown for one	Lithium Polymer (LiPo)	Unknown — not stated by the source
Number of battery cellsDiffers	6	3+4
Battery capacityKnown for one	90 Wh	Unknown — not stated by the source
Battery life (max)Differs	6.1 h	13.8 h
Power1 differ
AC adapter powerDiffers	170 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
CertificationKnown for one	MIL-STD-810G	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	2.67 kg	1.97 kg
WidthDiffers	377.4 mm	365.8 mm
DepthDiffers	252.3 mm	252.8 mm
Height (front)Differs	2.45 cm	2 cm
Height (rear)Differs	2.94 cm	2.02 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Docking station includedKnown for one	Yes	Unknown — not stated by the source
Manual	Yes	Yes
Power cord included	Yes	Yes
Quick start guide	Yes	Yes
Other featuresidentical
3DKnown for one	Unknown — not stated by the source	No

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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