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Product comparison · 2 motherboards

ASUS PRIME B840M-R vs ASUS X870 AYW GAMING WIFI W

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  • 62specifications compared
  • 23differ
  • 39identical
  • 31known for one product only

Key differences

  • Number of memory slots
    • 2
    • 4
  • ECC сompatibility
    • Non-ECC
    • ECC & Non-ECC
  • Maximum internal memory
    • 128 GB
    • 256 GB
  • Number of storage drives supported
    • 6
    • 7
  • Number of CPU fan connectors
    • 1
    • 2
  • Number of chassis fan connectors
    • 2
    • 4
  • USB 2.0 ports quantity
    • 2
    • 4
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • 4
    • 3

Side by side

Differences highlightedShow differences only
93 specifications
A

ASUS

PRIME B840M-RView product
B

ASUS

X870 AYW GAMING WIFI WView product
Processor1 differ
Processor manufacturerAMDAMD
Processor socketSocket AM5Socket AM5
Compatible processor seriesDiffersAMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 SeriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Memory3 differ
Supported memory typesDDR5-SDRAMDDR5-SDRAM
Number of memory slotsDiffers24
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityDiffersNon-ECCECC & Non-ECC
Maximum internal memoryDiffers128 GB256 GB
Unbuffered memoryYesYes
Supported memory clock speed (max)Known for one7600 MHz
Storage controllers1 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesM.2, SATA IIIM.2, SATA III
Number of HDDs supported44
Number of storage drives supportedDiffers67
RAID supportYesYes
RAID levels0, 1, 5, 100, 1, 5, 10
Graphicsidentical
Parallel processing technology supportNot supportedNot supported
Internal I/O2 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectors11
USB 3.2 Gen 2 (3.1 Gen 2) connectors00
USB 3.2 Gen 2x2 connectorsKnown for one1
Number of SATA III connectors44
S/PDIF out connectorYesYes
Front panel audio connectorYesYes
ATX Power connector (24-pin)YesYes
CPU fan connectorYesYes
Number of CPU fan connectorsDiffers12
Number of chassis fan connectorsDiffers24
Chassis intrusion connectorKnown for oneYes
EPS power connector (8-pin)YesYes
Number of EPS power connectors (8-pin)Known for one2
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 ports4 differ
USB 2.0 ports quantityDiffers24
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers43
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers01
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity00
USB4 Gen 3x2 ports quantityKnown for one2
Ethernet LAN (RJ-45) ports11
VGA (D-Sub) ports quantity00
HDMI ports quantity11
DVI-D ports quantity00
Line-inYesYes
Microphone inYesYes
WiFi-AP antenna jackKnown for one1
USB connector typeDiffersUSB Type-AUSB Type-A, USB Type-C
PS/2 ports quantityKnown for one1
DisplayPorts quantityKnown for one1
Headphone outputsKnown for one1
Network3 differ
Ethernet LANYesYes
Ethernet interface typeDiffersGigabit Ethernet2.5 Gigabit Ethernet
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 6 (802.11ax)
Wi-Fi standardsKnown for oneWi-Fi 6 (802.11ax)
BluetoothKnown for oneYes
Bluetooth versionKnown for one5.2
Features4 differ
Component forPCPC
Motherboard form factorDiffersmicro ATXATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD B840AMD X870
Audio output channels7.1 channels7.1 channels
Product colourDiffersMulticolourWhite
Windows operating systems supportedDiffersWindows 11, Windows 10 x64Windows 11
Expansion slots2 differ
PCI Express x16 (Gen 3.x) slotsKnown for one1
PCI Express x16 (Gen 4.x) slotsDiffers12
PCI Express x16 (Gen 5.x) slotsKnown for one1
Number of M.2 (M) slotsDiffers23
1st M.2 largest key size22802280
1st M.2 highest PCI Express generationKnown for one5.0
2nd M.2 largest key sizeKnown for one2280
2nd M.2 highest PCI Express generationKnown for one4.0
3rd M.2 largest key sizeKnown for one2280
3rd M.2 highest PCI Express generationKnown for one4.0
PCI Express x1 (Gen 3.x) slotsKnown for one1
BIOSidentical
BIOS typeUEFI AMIUEFI AMI
BIOS memory size256 Mbit256 Mbit
Weight & dimensions2 differ
WidthDiffers236 mm305 mm
DepthDiffers229 mm244 mm
HeightKnown for one36.5 mm
Packaging contentidentical
Antenna includedKnown for oneYes
Cables includedKnown for oneSATA
Screws includedKnown for oneYes
Other features1 differ
WeightDiffers563 g1.36 kg
Packaging dataidentical
Package widthKnown for one260 mm
Package depthKnown for one270 mm
Package heightKnown for one51.5 mm
Package weightKnown for one924 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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