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Product comparison · 2 laptops

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

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

Key differences

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

Side by side

Differences highlightedShow differences only
193 specifications
A

Lenovo

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

Model P71

View product
B

Lenovo

ThinkPad P51sView product
Design1 differ
Housing materialDiffersAluminium, Glass fibre, Magnesium, Polyphenylene sulfide (PPS)Glass fibre, Plastic
Market positioningKnown for oneHigh performance
Display3 differ
Display diagonalDiffers43.9 cm (17.3")39.6 cm (15.6")
Display brightnessDiffers300 cd/m²250 cd/m²
Contrast ratio (typical)Differs800:1700:1
Display surfaceKnown for oneMatt
Processor12 differ
Processor modelDiffersi7-7700HQi7-7500U
Processor coresDiffers42
Processor threadsDiffers84
Processor boost frequencyDiffers3.8 GHz3.5 GHz
Processor frequencyDiffers2.8 GHz2.7 GHz
System bus rateDiffers8 GT/s4 GT/s
Processor cacheDiffers6 MB4 MB
Processor socketKnown for oneBGA 1356
Bus typeDiffersDMI3OPI
SteppingKnown for oneH0
Thermal Design Power (TDP)Differs45 W15 W
Configurable TDP-up frequencyKnown for one2.9 GHz
Configurable TDP-upKnown for one25 W
Configurable TDP-downDiffers35 W7.5 W
Configurable TDP-down frequencyKnown for one0.8 GHz
Maximum number of PCI Express lanesDiffers1612
PCI Express configurationsDiffers1x16, 1x8, 2x4, 2x81x2+2x1, 1x4, 2x2, 4x1
Processor seriesKnown for oneIntel Core i7-7700 Mobile Series
Memory4 differ
Memory clock speedDiffers2400 MHz2133 MHz
Memory layout (slots x size)Known for one1 x 8 GB
Memory slotsDiffers4x SO-DIMM2x SO-DIMM
Maximum internal memoryDiffers64 GB32 GB
Maximum internal memory (64-bit)Differs64 GB32 GB
Storage3 differ
Total storage capacityDiffers256 GB1 TB
Storage mediaDiffersSSDHDD
Number of HDDs installedKnown for one1
HDD capacityKnown for one1 TB
HDD interfaceKnown for oneSATA III
HDD speedKnown for one5400 RPM
HDD sizeKnown for one2.5"
Optical drive typeDiffersDVD±RWNo
Number of SSDs installedKnown for one1
SSD capacityKnown for one256 GB
SSD form factorKnown for oneM.2
Graphics6 differ
Discrete graphics card modelDiffersNVIDIA® Quadro® M620NVIDIA® Quadro® M520M
Discrete graphics memory typeKnown for oneGDDR5
On-board graphics card modelDiffersIntel® HD Graphics 630Intel® HD Graphics 620
Maximum on-board graphics card memoryDiffers64 GB32 GB
On-board graphics card base frequencyDiffers350 MHz300 MHz
On-board graphics card dynamic frequency (max)Differs1100 MHz1050 MHz
On-board graphics card IDDiffers0x591B0x5916
Cameraidentical
Front camera signal formatKnown for one720p
Optical driveidentical
LightScribeKnown for oneNo
Networkidentical
Top Wi-Fi standardKnown for oneWi-Fi 5 (802.11ac)
Antenna typeKnown for one2x2
WLAN controller modelKnown for oneIntel Dual Band Wireless-AC 8265
Ports & interfaces2 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers43
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers21
Headphone outputsKnown for one0
Microphone inKnown for oneNo
Keyboardidentical
Full-size keyboardKnown for oneYes
Processor special features2 differ
Intel® Insider™Known for oneYes
Intel® Small Business Advantage (Intel® SBA)Known for oneYes
Processor ARK IDDiffers9718595451
Processor codeKnown for oneSR2ZV
Processor package sizeDiffers42 x 28 mm42 x 24 mm
Intel Small Business Advantage (SBA) versionKnown for one1.00
Intel® Smart CacheKnown for oneYes
Battery2 differ
Battery technologyDiffersLithium-Ion (Li-Ion)Lithium Polymer (LiPo)
Number of battery cellsDiffers83+4
Battery life (max)Known for one13.8 h
Battery capacityKnown for one96 Wh
Poweridentical
AC adapter powerKnown for one65 W
DC-in jackKnown for oneYes
Sustainability1 differ
Sustainability certificatesDiffersENERGY STAREPEAT Gold, ENERGY STAR
Weight & dimensions5 differ
WeightDiffers3.3 kg1.99 kg
WidthDiffers416 mm365.8 mm
DepthDiffers275.5 mm252.8 mm
Height (front)Differs2.99 cm2 cm
Height (rear)Differs3.42 cm2.02 cm
Performanceidentical
Motherboard chipsetKnown for oneIntel® CM238
Other featuresidentical
3DKnown for oneNo

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