Product comparison · 2 laptops

Lenovo P51 + Thinkvision P24q vs Lenovo P71 + Thinkvision P24q

169specifications compared
33differ
136identical
13known for one product only

Key differences

Display diagonal
- P51 + Thinkvision P24q:39.6 cm (15.6")
- P71 + Thinkvision P24q:43.9 cm (17.3")
Display brightness
- P51 + Thinkvision P24q:250 cd/m²
- P71 + Thinkvision P24q:300 cd/m²
Contrast ratio (typical)
- P51 + Thinkvision P24q:700:1
- P71 + Thinkvision P24q:800:1
Processor model
- P51 + Thinkvision P24q:i7-7700HQ
- P71 + Thinkvision P24q:i7-7820HQ
Processor boost frequency
- P51 + Thinkvision P24q:3.8 GHz
- P71 + Thinkvision P24q:3.9 GHz
Processor frequency
- P51 + Thinkvision P24q:2.8 GHz
- P71 + Thinkvision P24q:2.9 GHz
Processor cache
- P51 + Thinkvision P24q:6 MB
- P71 + Thinkvision P24q:8 MB
Internal memory
- P51 + Thinkvision P24q:8 GB
- P71 + Thinkvision P24q:16 GB

Side by side

Differences highlightedShow differences only

Comparison of P51 + Thinkvision P24q, P71 + Thinkvision P24q
182 specifications	A Lenovo P51 + Thinkvision P24q View product	B Lenovo P71 + Thinkvision P24q View product
Design1 differ
Product type	Mobile workstation	Mobile workstation
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Housing materialDiffers	Aluminium, Glass-reinforced plastic (GRP), Magnesium	Aluminium, Glass fibre, Magnesium, Polyphenylene sulfide (PPS)
Market positioningKnown for one	High performance	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	39.6 cm (15.6")	43.9 cm (17.3")
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 brightnessDiffers	250 cd/m²	300 cd/m²
Contrast ratio (typical)Differs	700:1	800:1
Processor5 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	i7-7820HQ
Processor cores	4	4
Processor threads	8	8
Processor boost frequencyDiffers	3.8 GHz	3.9 GHz
Processor frequencyDiffers	2.8 GHz	2.9 GHz
System bus rateKnown for one	8 GT/s	Unknown — not stated by the source
Processor cacheDiffers	6 MB	8 MB
Processor cache type	Smart Cache	Smart Cache
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-7700 Mobile Series	Intel Core i7-7800 Mobile Series
Processor codename	Kaby Lake	Kaby Lake
Bus type	DMI3	DMI3
Thermal Design Power (TDP)	45 W	45 W
Configurable TDP-down	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 1x8, 2x4, 2x8	1x16, 1x8, 2x4, 2x8
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	8 GB	16 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory clock speed	2400 MHz	2400 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	1 x 8 GB	2 x 8 GB
Memory slots	4x SO-DIMM	4x SO-DIMM
Maximum internal memory	64 GB	64 GB
Maximum internal memory (64-bit)	64 GB	64 GB
Storage3 differ
Total storage capacityDiffers	256 GB	512 GB
Storage media	SSD	SSD
Number of SSDs installed	1	1
SSD capacityDiffers	256 GB	512 GB
SSD form factor	M.2	M.2
Optical drive typeDiffers	No	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cards	MMC, SD, SDHC, SDXC	MMC, SD, SDHC, SDXC
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® Quadro® M1200	NVIDIA® Quadro® P3000
Discrete graphics card memoryDiffers	4 GB	6 GB
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 630	Intel® HD Graphics 630
Maximum on-board graphics card memory	64 GB	64 GB
On-board graphics card base frequency	350 MHz	350 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 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	0x591B	0x591B
Number of discrete graphics cards installedKnown for one	1	Unknown — not stated by the source
Number of discrete graphics cards supportedKnown for one	1	Unknown — not stated by the source
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 resolutionKnown for one	1280 x 720 pixels	Unknown — not stated by the source
Front camera signal format	720p	720p
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
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
Antenna typeKnown for one	Unknown — not stated by the source	2x2
WLAN controller modelKnown for one	Unknown — not stated by the source	Intel Dual Band Wireless-AC 8265
Ports & interfaces2 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4	4
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	2
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
SmartCard slotKnown for one	Yes	Unknown — not stated by the source
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Performanceidentical
Motherboard chipset	Intel® CM238	Intel® CM238
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 features6 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 Small Business Advantage (SBA) 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)Differs	No	Yes
Intel Stable Image Platform Program (SIPP) versionDiffers	0.00	1.00
Intel TSX-NIDiffers	No	Yes
Intel TSX-NI versionDiffers	0.00	1.00
Intel Trusted Execution TechnologyDiffers	No	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® 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 Cache	Yes	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	97185	97496
Processor package size	42 x 28 mm	42 x 28 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 HD GraphicsKnown for one	Unknown — not stated by the source	Yes
Battery3 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	6	8
Battery capacityDiffers	90 Wh	96 Wh
Power1 differ
AC adapter powerDiffers	170 W	230 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	Yes	Unknown — not stated by the source
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
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions5 differ
WeightDiffers	2.67 kg	3.3 kg
WidthDiffers	377.4 mm	416 mm
DepthDiffers	252.3 mm	275.5 mm
Height (front)Differs	2.45 cm	2.99 cm
Height (rear)Differs	2.94 cm	3.42 cm
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

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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