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Product comparison · 2 all-in-one pcs/workstations

Lenovo ThinkCentre M820z vs Lenovo V540 + Preferred Pro II USB QWERTZ

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  • 118specifications compared
  • 43differ
  • 75identical
  • 58known for one product only

Key differences

  • Display diagonal
    • 54.6 cm (21.5")
    • 60.5 cm (23.8")
  • Panel type
    • IPS
    • WVA
  • Processor model
    • i5-8600
    • i5-8265U
  • Processor cores
    • 6
    • 4
  • Processor threads
    • 6
    • 8
  • Processor boost frequency
    • 4.3 GHz
    • 3.9 GHz
  • Processor frequency
    • 3.1 GHz
    • 1.6 GHz
  • Processor cache
    • 9 MB
    • 6 MB

Side by side

Differences highlightedShow differences only
176 specifications
A

Lenovo

ThinkCentre M820zView product
B

Lenovo

V540 + Preferred Pro II USB QWERTZView product
Display2 differ
Display diagonalDiffers54.6 cm (21.5")60.5 cm (23.8")
Display resolution1920 x 1080 pixels1920 x 1080 pixels
TouchscreenNoNo
HD typeFull HDFull HD
LED backlightYesYes
Native aspect ratio16:916:9
Display brightnessKnown for one250 cd/m²
Panel typeDiffersIPSWVA
Screen shapeFlatFlat
Processor16 differ
Processor manufacturerIntelIntel
Processor familyIntel® Core™ i5Intel® Core™ i5
Processor generation8th gen Intel® Core™ i58th gen Intel® Core™ i5
Processor modelDiffersi5-8600i5-8265U
Processor coresDiffers64
Processor threadsDiffers68
Processor boost frequencyDiffers4.3 GHz3.9 GHz
Processor frequencyDiffers3.1 GHz1.6 GHz
Processor cacheDiffers9 MB6 MB
Processor cache typeSmart CacheSmart Cache
Processor socketDiffersLGA 1151 (Socket H4)BGA 1528
System bus rateDiffers8 GT/s4 GT/s
Thermal Design Power (TDP)Differs65 W15 W
Configurable TDP-up frequencyKnown for one1.8 GHz
Configurable TDP-upKnown for one25 W
Configurable TDP-down frequencyKnown for one0.8 GHz
Configurable TDP-downKnown for one10 W
Bus typeDiffersDMI3OPI
Maximum number of PCI Express lanes1616
PCI Express configurationsDiffers1x16, 1x8+2x4, 2x81x4, 2x2
PCI Express slots version3.03.0
Processor codenameDiffersCoffee LakeWhiskey Lake
Processor lithography14 nm14 nm
Processor operating modes64-bit64-bit
Tjunction100 °C100 °C
Maximum internal memory supported by processorDiffers64 GB32 GB
Memory types supported by processorDiffersDDR4-SDRAMDDR4-SDRAM, LPDDR3-SDRAM
Memory clock speeds supported by processorDiffers2666 MHz2133 MHz
Memory bandwidth supported by processor (max)Differs41.6 GB/s37.5 GB/s
Processor codeKnown for oneSR3X0
SteppingKnown for oneU0
Conflict-Free processorKnown for oneYes
Memoryidentical
Internal memory8 GB8 GB
Internal memory typeDDR4-SDRAMDDR4-SDRAM
Maximum internal memory32 GB32 GB
Memory slotsKnown for one2
Memory slots typeKnown for oneSO-DIMM
Memory clock speed2666 MHz2666 MHz
Memory layout (slots x size)Known for one2 x 4 GB
Memory form factorDIMM/SO-DIMMDIMM/SO-DIMM
Storage1 differ
Total storage capacity256 GB256 GB
Storage mediaSSDSSD
Total SSDs capacity256 GB256 GB
Number of SSDs installed11
SSD capacity256 GB256 GB
NVMeKnown for oneYes
SSD interfaceDiffersSATA IIINVMe, PCI Express
SSD form factorKnown for oneM.2
Optical drive typeKnown for oneNo
Card reader integratedKnown for oneYes
Compatible memory cardsKnown for oneSD, SDHC, SDXC
Number of storage drives installedKnown for one1
Graphics6 differ
Discrete graphics cardNoNo
Discrete graphics card modelNot availableNot available
On-board graphics cardDiffersNoYes
On-board graphics card familyKnown for oneIntel® UHD Graphics
On-board graphics card modelDiffersIntel® UHD Graphics 630Intel® UHD Graphics
Maximum on-board graphics card memoryDiffers64 GB32 GB
Number of displays supported (on-board graphics)33
On-board graphics card base frequencyDiffers350 MHz300 MHz
On-board graphics card dynamic frequency (max)Differs1150 MHz1100 MHz
On-board graphics card DirectX version12.012.0
On-board graphics card IDDiffers0x3E920x3EA0
On-board graphics card OpenGL version4.54.5
Audioidentical
Built-in speaker(s)YesYes
Number of speakers22
RMS rated powerKnown for one6 W
Built-in microphoneKnown for oneYes
Audio chipKnown for oneRealtek ALC233
Audio systemKnown for oneHD
Camera1 differ
Built-in cameraDiffersNoYes
Camera HD typeKnown for oneHD
Camera signal formatKnown for one720p
Network1 differ
Wi-FiYesYes
Top Wi-Fi standardWi-Fi 5 (802.11ac)Wi-Fi 5 (802.11ac)
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
WLAN controller modelKnown for oneIntel Dual Band Wireless-AC 9560
Antenna typeKnown for one2x2
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
BluetoothYesYes
Bluetooth versionDiffers4.24.0
Ports & interfaces4 differ
Ethernet LAN (RJ-45) ports11
USB 2.0 ports quantityDiffers04
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers40
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityDiffers10
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers02
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Thunderbolt 3 ports quantity00
Thunderbolt ports quantity00
HDMI input ports quantityKnown for one1
HDMI output ports quantityKnown for one1
HDMI ports quantityKnown for one2
Headphone outputs11
Microphone inNoNo
Combo headphone/mic portKnown for oneYes
DC-in jackKnown for oneYes
Designidentical
Product colourBlackBlack
Cable lock slotKnown for oneYes
On/off buttonKnown for oneYes
VESA mountingKnown for oneYes
Performanceidentical
Product typeAll-in-One PCAll-in-One PC
Trusted Platform Module (TPM)Known for oneYes
HDD user passwordKnown for oneYes
Softwareidentical
Operating system installedWindows 10 ProWindows 10 Pro
Operating system architecture64-bit64-bit
Processor special features8 differ
CPU configuration (max)11
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyYesYes
Intel Enhanced Halt StateYesYes
Intel Flex Memory AccessKnown for oneYes
Intel Identity Protection Technology version1.001.00
Intel Secure Key Technology version1.001.00
Intel Smart Response Technology versionKnown for one1.00
Intel Software Guard Extensions (Intel SGX)YesYes
Intel Stable Image Platform Program (SIPP)DiffersYesNo
Intel Stable Image Platform Program (SIPP) versionDiffers1.000.00
Intel TSX-NIDiffersYesNo
Intel TSX-NI versionDiffers1.000.00
Intel Trusted Execution TechnologyDiffersYesNo
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Clear Video HD Technology (Intel® CVT HD)YesYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® My WiFi Technology (Intel® MWT)Known for oneYes
Intel® OS GuardYesYes
Intel® Quick Sync Video TechnologyYesYes
Intel® Secure KeyYesYes
Intel® Smart Response TechnologyKnown for oneYes
Intel® Turbo Boost Technology2.02.0
Processor ARK IDDiffers129937149088
Processor package sizeDiffers37.5 x 37.5 mm46x24 mm
Supported instruction setsAVX 2.0, SSE4.1, SSE4.2AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesYesYes
Intel® InTru™ 3D TechnologyKnown for oneYes
ScalabilityKnown for one1S
Thermal solution specificationKnown for onePCG 2015C
Power1 differ
AC adapter powerDiffers150 W65 W
AC adapter frequencyKnown for one50/60 Hz
AC adapter input voltageKnown for one100 - 240 V
Penidentical
Pen includedNoNo
Weight & dimensions3 differ
Width (with stand)Known for one541 mm
Depth (with stand)Known for one214 mm
Height (with stand)Known for one450 mm
Weight (with stand)Known for one6.4 kg
Width (without stand)Differs491 mm541 mm
Depth (without stand)Differs49 mm59.7 mm
Height (without stand)Differs342 mm337 mm
Weight (without stand)Known for one4.8 kg
Sustainabilityidentical
Sustainability certificatesKnown for oneBlue Angel, EPEAT Silver, ENERGY STAR
Packaging contentidentical
Keyboard includedKnown for oneYes
Keyboard languageKnown for oneFrench, German
Keyboard layoutKnown for oneQWERTZ
AC adapter includedKnown for oneYes
Cables includedKnown for oneAC
Power cord includedKnown for oneYes
Other featuresidentical
3DNoNo
Autonomy modeNoNo
Detachable displayNoNo

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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