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Product comparison · 2 motherboards

ASUS PRIME A620A-PLUS WIFI vs ASUS PRIME B840M-R

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  • 69specifications compared
  • 23differ
  • 46identical
  • 27known for one product only

Key differences

The ASUS PRIME A620A-PLUS WIFI has 2 more memory slots than the ASUS PRIME B840M-R (4 vs 2). The ASUS PRIME A620A-PLUS WIFI has 128 GB more maximum internal memory than the ASUS PRIME B840M-R (256 GB vs 128 GB). The ASUS PRIME A620A-PLUS WIFI has 1 more USB 3.2 Gen 1 (3.1 Gen 1) connectors than the ASUS PRIME B840M-R (2 vs 1). Only the ASUS PRIME A620A-PLUS WIFI has Wi-Fi. ECC сompatibility: ECC & Non-ECC on the ASUS PRIME A620A-PLUS WIFI, Non-ECC on the ASUS PRIME B840M-R.

  • Number of memory slots
    • 4
    • 2
  • ECC сompatibility
    • ECC & Non-ECC
    • Non-ECC
  • Maximum internal memory
    • 256 GB
    • 128 GB
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 2
    • 1
  • Number of chassis fan connectors
    • 3
    • 2
  • USB 2.0 ports quantity
    • 3
    • 2
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • 2
    • 4
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity
    • 1
    • 0

Side by side

Differences highlightedShow differences only
96 specifications
A

ASUS

PRIME A620A-PLUS WIFIView product
B

ASUS

PRIME B840M-RView product
Processor1 differ
Processor manufacturerAMDAMD
Processor socketSocket AM5Socket AM5
Compatible processor seriesDiffersAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 SeriesAMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series
Supported processor socketsKnown for oneSocket AM5
Memory3 differ
Supported memory typesDDR5-SDRAMDDR5-SDRAM
Number of memory slotsDiffers42
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityDiffersECC & Non-ECCNon-ECC
Supported memory clock speed (max)7600 MHz7600 MHz
Maximum internal memoryDiffers256 GB128 GB
Unbuffered memoryYesYes
Maximum internal memory per slotKnown for one64 GB
Storage controllersidentical
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATA IIIM.2, SATA III
Number of HDDs supported44
Number of storage drives supported66
RAID supportYesYes
RAID levels0, 1, 5, 100, 1, 5, 10
Graphicsidentical
Parallel processing technology supportNot supportedNot supported
Maximum resolutionKnown for one7680 x 4320 pixels
Internal I/O2 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers21
USB 3.2 Gen 2 (3.1 Gen 2) connectors00
Number of SATA III connectors44
S/PDIF out connectorYesYes
Front panel audio connectorYesYes
Front panel connectorKnown for oneYes
ATX Power connector (24-pin)YesYes
CPU fan connectorYesYes
Number of CPU fan connectors11
Number of chassis fan connectorsDiffers32
Chassis intrusion connectorKnown for oneYes
EPS power connector (8-pin)YesYes
Number of EPS power connectors (8-pin)Known for one1
12V power connectorYesYes
Number of COM connectors11
Number of water pump connectorsKnown for one1
TPM connectorYesYes
RGB LED pin headerKnown for oneYes
Number of RGB LED pin headersKnown for one3
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers32
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers24
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 quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
Ethernet LAN (RJ-45) ports11
PS/2 ports quantity11
VGA (D-Sub) ports quantity00
HDMI ports quantity11
HDMI versionKnown for one2.1
DVI-D ports quantity00
DisplayPorts quantity11
DisplayPort versionKnown for one1.4
Headphone outputs11
Microphone inYesYes
WiFi-AP antenna jackKnown for one2
Line-inKnown for oneYes
USB connector typeKnown for oneUSB Type-A
Network2 differ
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
Wi-FiDiffersYesNo
Top Wi-Fi standardDiffersWi-Fi 6 (802.11ax)Not available
Wi-Fi standardsKnown for oneWi-Fi 6 (802.11ax)
BluetoothKnown for oneYes
Bluetooth versionKnown for one5.3
Features4 differ
Component forPCPC
Motherboard form factorDiffersATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD A620AAMD B840
Audio output channels7.1 channels7.1 channels
Product colourDiffersBlackMulticolour
Cooling typeKnown for onePassive
Power source typeKnown for oneATX
Windows operating systems supportedDiffersWindows 10 x64, Windows 11Windows 11, Windows 10 x64
Expansion slotsidentical
PCI Express x16 (Gen 3.x) slotsKnown for one4
PCI Express x16 (Gen 4.x) slots11
Number of M.2 (M) slots22
1st M.2 largest key size22802280
1st M.2 highest PCI Express generationKnown for one4.0
2nd M.2 largest key sizeKnown for one22110
2nd M.2 highest PCI Express generationKnown for one3.0
PCI Express x1 (Gen 3.x) slotsKnown for one1
BIOSidentical
BIOS typeUEFI AMIUEFI AMI
BIOS memory size256 Mbit256 Mbit
Packaging data4 differ
Package widthDiffers338 mm260 mm
Package depthDiffers273 mm270 mm
Package heightDiffers68 mm51.5 mm
Package weightDiffers1.25 kg924 g
Weight & dimensions3 differ
WidthDiffers305 mm236 mm
DepthDiffers244 mm229 mm
HeightDiffers40 mm36.5 mm
Packaging contentidentical
Antenna includedKnown for oneYes
Cables includedKnown for oneSATA
Screws includedKnown for oneYes
Other features1 differ
WeightDiffers830 g563 g

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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