Product comparison · 2 laptops

Lenovo ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation vs Lenovo ThinkPad P51s

156specifications compared
41differ
115identical
37known for one product only

Key differences

Display diagonal
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:43.9 cm (17.3")
- ThinkPad P51s:39.6 cm (15.6")
Display brightness
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:300 cd/m²
- ThinkPad P51s:250 cd/m²
Contrast ratio (typical)
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:800:1
- ThinkPad P51s:700:1
Processor model
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:i7-7700HQ
- ThinkPad P51s:i7-7500U
Processor cores
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:4
- ThinkPad P51s:2
Processor threads
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:8
- ThinkPad P51s:4
Processor boost frequency
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:3.8 GHz
- ThinkPad P51s:3.5 GHz
Processor frequency
- ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation:2.8 GHz
- ThinkPad P51s:2.7 GHz

Side by side

Differences highlightedShow differences only

Comparison of P71, ThinkPad P51s
193 specifications	A Lenovo ThinkPad P71 Intel® Core™ i7 i7-7700HQ Mobile workstation Model P71 View product	B Lenovo ThinkPad P51s View product
Design1 differ
Product type	Mobile workstation	Mobile workstation
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialDiffers	Aluminium, Glass fibre, Magnesium, Polyphenylene sulfide (PPS)	Glass fibre, Plastic
Market positioningKnown for one	Unknown — not stated by the source	High performance
Display3 differ
Display diagonalDiffers	43.9 cm (17.3")	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
Screen shape	Flat	Flat
Display brightnessDiffers	300 cd/m²	250 cd/m²
Contrast ratio (typical)Differs	800:1	700:1
Display surfaceKnown for one	Matt	Unknown — not stated by the source
Processor12 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	7th gen Intel® Core™ i7	7th gen Intel® Core™ i7
Processor modelDiffers	i7-7700HQ	i7-7500U
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyDiffers	3.8 GHz	3.5 GHz
Processor frequencyDiffers	2.8 GHz	2.7 GHz
System bus rateDiffers	8 GT/s	4 GT/s
Processor cacheDiffers	6 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketKnown for one	Unknown — not stated by the source	BGA 1356
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor codename	Kaby Lake	Kaby Lake
Bus typeDiffers	DMI3	OPI
SteppingKnown for one	Unknown — not stated by the source	H0
Thermal Design Power (TDP)Differs	45 W	15 W
Configurable TDP-up frequencyKnown for one	Unknown — not stated by the source	2.9 GHz
Configurable TDP-upKnown for one	Unknown — not stated by the source	25 W
Configurable TDP-downDiffers	35 W	7.5 W
Configurable TDP-down frequencyKnown for one	Unknown — not stated by the source	0.8 GHz
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
Processor seriesKnown for one	Intel Core i7-7700 Mobile Series	Unknown — not stated by the source
Memory4 differ
Internal memory	8 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)Known for one	Unknown — not stated by the source	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
Storage3 differ
Total storage capacityDiffers	256 GB	1 TB
Storage mediaDiffers	SSD	HDD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	1 TB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA III
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Optical drive typeDiffers	DVD±RW	No
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
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 form factorKnown for one	M.2	Unknown — not stated by the source
Graphics6 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® Quadro® M620	NVIDIA® Quadro® M520M
Discrete graphics card memory	2 GB	2 GB
Discrete graphics memory typeKnown for one	Unknown — not stated by the source	GDDR5
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	1050 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 signal formatKnown for one	720p	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	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	Wi-Fi 5 (802.11ac)	Unknown — not stated by the source
Antenna typeKnown for one	2x2	Unknown — not stated by the source
WLAN controller modelKnown for one	Intel Dual Band Wireless-AC 8265	Unknown — not stated by the source
Ports & interfaces2 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 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 quantityDiffers	2	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	Unknown — not stated by the source	0
Combo headphone/mic port	Yes	Yes
Microphone inKnown for one	Unknown — not stated by the source	No
Docking connector	Yes	Yes
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Keyboardidentical
Pointing device	ThinkPad UltraNav	ThinkPad UltraNav
Keyboard backlit	Yes	Yes
Numeric keypad	Yes	Yes
Spill-resistant keyboard	Yes	Yes
Windows keys	Yes	Yes
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
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™Known for one	Unknown — not stated by the source	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)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	97185	95451
Processor codeKnown for one	Unknown — not stated by the source	SR2ZV
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 Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Battery2 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Number of battery cellsDiffers	8	3+4
Battery life (max)Known for one	Unknown — not stated by the source	13.8 h
Battery capacityKnown for one	96 Wh	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
AC adapter frequency	50 - 60 Hz	50 - 60 Hz
AC adapter input voltage	100 - 240 V	100 - 240 V
DC-in jackKnown for one	Unknown — not stated by the source	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 & dimensions5 differ
WeightDiffers	3.3 kg	1.99 kg
WidthDiffers	416 mm	365.8 mm
DepthDiffers	275.5 mm	252.8 mm
Height (front)Differs	2.99 cm	2 cm
Height (rear)Differs	3.42 cm	2.02 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Power cord included	Yes	Yes
Quick start guide	Yes	Yes
Performanceidentical
Motherboard chipsetKnown for one	Intel® CM238	Unknown — not stated by the source
Other featuresidentical
3DKnown for one	No	Unknown — not stated by the source

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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