Product comparison · 2 motherboards

ASUS PRIME B840M-R vs GIGABYTE B550M AORUS ELITE AX (REV. 1.4)

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  • 66specifications compared
  • 23differ
  • 43identical
  • 43known for one product only

Key differences

The GIGABYTE B550M AORUS ELITE AX (REV. 1.4) has 2 more memory slots than the ASUS PRIME B840M-R (4 vs 2). The ASUS PRIME B840M-R has 2,867 MHz more supported memory clock speed (max) than the GIGABYTE B550M AORUS ELITE AX (REV. 1.4) (7600 MHz vs 4733 MHz). The ASUS PRIME B840M-R has 1 more USB 2.0 connectors than the GIGABYTE B550M AORUS ELITE AX (REV. 1.4) (2 vs 1). Only the GIGABYTE B550M AORUS ELITE AX (REV. 1.4) has Wi-Fi. Processor socket: Socket AM5 on the ASUS PRIME B840M-R, Socket AM4 on the GIGABYTE B550M AORUS ELITE AX (REV. 1.4).

  • Processor socket
    • PRIME B840M-R:Socket AM5
    • B550M AORUS ELITE AX (REV. 1.4):Socket AM4
  • Supported memory types
    • PRIME B840M-R:DDR5-SDRAM
    • B550M AORUS ELITE AX (REV. 1.4):DDR4-SDRAM
  • Number of memory slots
    • PRIME B840M-R:2
    • B550M AORUS ELITE AX (REV. 1.4):4
  • ECC сompatibility
    • PRIME B840M-R:Non-ECC
    • B550M AORUS ELITE AX (REV. 1.4):ECC & Non-ECC
  • Supported memory clock speed (max)
    • PRIME B840M-R:7600 MHz
    • B550M AORUS ELITE AX (REV. 1.4):4733 MHz
  • RAID levels
    • PRIME B840M-R:0, 1, 5, 10
    • B550M AORUS ELITE AX (REV. 1.4):0, 1, 10
  • USB 2.0 connectors
    • PRIME B840M-R:2
    • B550M AORUS ELITE AX (REV. 1.4):1
  • USB 2.0 ports quantity
    • PRIME B840M-R:2
    • B550M AORUS ELITE AX (REV. 1.4):4

Side by side

Differences highlightedShow differences only (on)
Comparison of PRIME B840M-R, B550M AORUS ELITE AX (REV. 1.4)
109 specifications
Processor2 differ
Processor socketDiffersSocket AM5Socket AM4
Compatible processor seriesDiffersAMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 SeriesAMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Maximum number of SMP processorsKnown for oneUnknown — not stated by the source1
Supported processor socketsKnown for oneUnknown — not stated by the sourceSocket AM4
Memory4 differ
Supported memory typesDiffersDDR5-SDRAMDDR4-SDRAM
Number of memory slotsDiffers24
ECC сompatibilityDiffersNon-ECCECC & Non-ECC
Supported memory clock speedsKnown for oneUnknown — not stated by the source4733,4600,4400,4266,4133,4000,3866,3733,3600,3466,3400,3200,2933,2667,2400,2133 MHz
Supported memory clock speed (max)Differs7600 MHz4733 MHz
Maximum internal memory per slotKnown for oneUnknown — not stated by the source32 GB
Storage controllers1 differ
RAID levelsDiffers0, 1, 5, 100, 1, 10
Graphicsidentical
Maximum resolutionKnown for oneUnknown — not stated by the source4096 x 2160 pixels
HDCPKnown for oneUnknown — not stated by the sourceYes
DirectX versionKnown for oneUnknown — not stated by the source12.0
Internal I/O1 differ
USB 2.0 connectorsDiffers21
Front panel connectorKnown for oneUnknown — not stated by the sourceYes
Number of EPS power connectors (8-pin)Known for oneUnknown — not stated by the source1
Number of water pump connectorsKnown for oneUnknown — not stated by the source2
Serial port headersKnown for oneUnknown — not stated by the source1
RGB LED pin headerKnown for oneUnknown — not stated by the sourceYes
Number of RGB LED pin headersKnown for oneUnknown — not stated by the source5
S/PDIF out connectorKnown for oneYesUnknown — not stated by the source
Number of COM connectorsKnown for one1Unknown — not stated by the source
Rear panel I/O ports2 differ
USB 2.0 ports quantityDiffers24
HDMI versionKnown for oneUnknown — not stated by the source2.1
DVI-D ports quantityDiffers01
WiFi-AP antenna jackKnown for oneUnknown — not stated by the source2
DisplayPorts quantityKnown for one1Unknown — not stated by the source
USB connector typeKnown for oneUSB Type-AUnknown — not stated by the source
Network2 differ
LAN controllerKnown for oneUnknown — not stated by the sourceRealtek RTL8111H
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 6E (802.11ax)
Wi-Fi standardsKnown for oneUnknown — not stated by the sourceWi-Fi 6E (802.11ax)
WLAN controller modelKnown for oneUnknown — not stated by the sourceRealtek RTL8852CE
BluetoothKnown for oneUnknown — not stated by the sourceYes
Bluetooth versionKnown for oneUnknown — not stated by the source5.3
Features3 differ
Motherboard chipsetDiffersAMD B840AMD B550
Audio chipKnown for oneUnknown — not stated by the sourceRealtek ALC897
Product colourDiffersMulticolourBrown
PC health monitoringKnown for oneUnknown — not stated by the sourceFan, Temperature, Voltage
Cooling typeKnown for oneUnknown — not stated by the sourcePassive
Power source typeKnown for oneUnknown — not stated by the sourceATX
Windows operating systems supportedDiffersWindows 11, Windows 10 x64Windows 10 x64, Windows 11 x64
Expansion slots1 differ
PCI Express x16 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source1
1st M.2 largest key sizeDiffers228022110
1st M.2 highest PCI Express generationKnown for oneUnknown — not stated by the source4.0
2nd M.2 largest key sizeKnown for oneUnknown — not stated by the source2280
2nd M.2 highest PCI Express generationKnown for oneUnknown — not stated by the source3.0
BIOS1 differ
BIOS memory sizeDiffers256 Mbit128 Mbit
ACPI versionKnown for oneUnknown — not stated by the source5.0
Clear CMOS jumperKnown for oneUnknown — not stated by the sourceYes
Desktop Management Interface (DMI) versionKnown for oneUnknown — not stated by the source2.7
System Management BIOS (SMBIOS) versionKnown for oneUnknown — not stated by the source2.7
Logistics dataidentical
Country of originKnown for oneUnknown — not stated by the sourceChina
Packaging data4 differ
Package widthDiffers260 mm265 mm
Package depthDiffers270 mm265 mm
Package heightDiffers51.5 mm65 mm
Package weightDiffers924 g1.27 kg
Weight & dimensions2 differ
WidthDiffers236 mm244 mm
DepthDiffers229 mm244 mm
HeightKnown for one36.5 mmUnknown — not stated by the source
Packaging contentidentical
Antenna includedKnown for oneUnknown — not stated by the sourceYes
Screws includedKnown for oneUnknown — not stated by the sourceYes
Bundled softwareKnown for oneUnknown — not stated by the sourceNorton® Internet Security (OEM version)LAN bandwidth management software
Technical detailsidentical
Warranty periodKnown for oneUnknown — not stated by the source3 year(s)
Other featuresidentical
WeightKnown for one563 gUnknown — not stated by the source

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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