Product comparison · 2 motherboards

ASUS PRIME B840M-R vs GIGABYTE B550M GAMING X (Rev. 1.2)

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  • 68specifications compared
  • 23differ
  • 45identical
  • 45known for one product only

Key differences

The GIGABYTE B550M GAMING X (Rev. 1.2) has 2 more memory slots than the ASUS PRIME B840M-R (4 vs 2). The ASUS PRIME B840M-R has 4,400 MHz more supported memory clock speed (max) than the GIGABYTE B550M GAMING X (Rev. 1.2) (7600 MHz vs 3200 MHz). The ASUS PRIME B840M-R has 1 more USB 2.0 connectors than the GIGABYTE B550M GAMING X (Rev. 1.2) (2 vs 1). Processor socket: Socket AM5 on the ASUS PRIME B840M-R, Socket AM4 on the GIGABYTE B550M GAMING X (Rev. 1.2). Supported memory types: DDR5-SDRAM on the ASUS PRIME B840M-R, DDR4-SDRAM on the GIGABYTE B550M GAMING X (Rev. 1.2).

  • Processor socket
    • PRIME B840M-R:Socket AM5
    • B550M GAMING X (Rev. 1.2):Socket AM4
  • Supported memory types
    • PRIME B840M-R:DDR5-SDRAM
    • B550M GAMING X (Rev. 1.2):DDR4-SDRAM
  • Number of memory slots
    • PRIME B840M-R:2
    • B550M GAMING X (Rev. 1.2):4
  • ECC сompatibility
    • PRIME B840M-R:Non-ECC
    • B550M GAMING X (Rev. 1.2):ECC & Non-ECC
  • Supported memory clock speed (max)
    • PRIME B840M-R:7600 MHz
    • B550M GAMING X (Rev. 1.2):3200 MHz
  • RAID levels
    • PRIME B840M-R:0, 1, 5, 10
    • B550M GAMING X (Rev. 1.2):0, 1, 10
  • USB 2.0 connectors
    • PRIME B840M-R:2
    • B550M GAMING X (Rev. 1.2):1
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • PRIME B840M-R:1
    • B550M GAMING X (Rev. 1.2):2

Side by side

Differences highlightedShow differences only (off)
Comparison of PRIME B840M-R, B550M GAMING X (Rev. 1.2)
113 specifications
Processor2 differ
Processor manufacturerAMDAMD
Processor socketDiffersSocket AM5Socket AM4
Compatible processor seriesDiffersAMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 SeriesAMD Ryzen 5000 Series, AMD Ryzen 3000 Series, AMD Ryzen 4000 Series
Supported processor socketsKnown for oneUnknown — not stated by the sourceSocket AM4
Memory4 differ
Supported memory typesDiffersDDR5-SDRAMDDR4-SDRAM
Number of memory slotsDiffers24
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityDiffersNon-ECCECC & Non-ECC
Supported memory clock speedsKnown for oneUnknown — not stated by the source3200,2933,2667,2400,2133 MHz
Supported memory clock speed (max)Differs7600 MHz3200 MHz
Maximum internal memory128 GB128 GB
Unbuffered memoryYesYes
Maximum internal memory per slotKnown for oneUnknown — not stated by the source32 GB
Storage controllers2 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesDiffersM.2, SATA IIIM.2, PCI Express 4.0, PCI Express 3.0, SATA III
Number of HDDs supported44
Number of storage drives supported66
RAID supportYesYes
RAID levelsDiffers0, 1, 5, 100, 1, 10
Graphicsidentical
Parallel processing technology supportNot supportedNot supported
Maximum resolutionKnown for oneUnknown — not stated by the source5120 x 2880 pixels
HDCPKnown for oneUnknown — not stated by the sourceYes
HDCP versionKnown for oneUnknown — not stated by the source2.3
DirectX versionKnown for oneUnknown — not stated by the source12.0
Internal I/O3 differ
USB 2.0 connectorsDiffers21
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers12
USB 3.2 Gen 2 (3.1 Gen 2) connectors00
Number of SATA III connectors44
Front panel audio connectorYesYes
Front panel connectorKnown for oneUnknown — not stated by the sourceYes
ATX Power connector (24-pin)YesYes
CPU fan connectorYesYes
Number of CPU fan connectorsDiffers12
Number of chassis fan connectors22
EPS power connector (8-pin)YesYes
Number of EPS power connectors (8-pin)Known for oneUnknown — not stated by the source1
12V power connectorYesYes
Number of water pump connectorsKnown for oneUnknown — not stated by the source2
Serial port headersKnown for oneUnknown — not stated by the source1
TPM connectorYesYes
RGB LED pin headerKnown for oneUnknown — not stated by the sourceYes
Number of RGB LED pin headersKnown for oneUnknown — not stated by the source4
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 portsidentical
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity44
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 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 oneUnknown — not stated by the source2.1
DVI-D ports quantity00
DisplayPorts quantity11
DisplayPort versionKnown for oneUnknown — not stated by the source1.4
Headphone outputs11
Line-inYesYes
Microphone inYesYes
WiFi-AP antenna jackKnown for oneUnknown — not stated by the source2
USB connector typeKnown for oneUSB Type-AUnknown — not stated by the source
Networkidentical
Ethernet LANYesYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
LAN controllerKnown for oneUnknown — not stated by the sourceRealtek 8111H
Wi-FiNoNo
Top Wi-Fi standardKnown for oneNot availableUnknown — not stated by the source
Features3 differ
Component forPCPC
Motherboard form factormicro ATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD B840AMD B550
Audio chipKnown for oneUnknown — not stated by the sourceRealtek ALC1220
Audio output channels7.1 channels7.1 channels
Product colourDiffersMulticolourDark brown
PC health monitoringKnown for oneUnknown — not stated by the sourceCPU, Fan, Temperature, Voltage, Water cooling
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 11 x64, Windows 10 x64
Expansion slotsidentical
PCI Express x1 (Gen 3.x) slots11
PCI Express x16 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source1
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 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 typeUEFI AMIUEFI AMI
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
Products per shipping (inner) caseKnown for oneUnknown — not stated by the source1 pc(s)
Batteryidentical
Battery weightKnown for oneUnknown — not stated by the source3 g
Lithium weight per batteryKnown for oneUnknown — not stated by the source0.07 g
Number of battery cellsKnown for oneUnknown — not stated by the source1
Battery capacityKnown for oneUnknown — not stated by the source220 mAh
Battery technologyKnown for oneUnknown — not stated by the sourceLithium-Manganese Dioxide (LiMnO2)
Battery typeKnown for oneUnknown — not stated by the sourceCR2032
Packaging data4 differ
Package widthDiffers260 mm270 mm
Package depthDiffers270 mm268 mm
Package heightDiffers51.5 mm68 mm
Package weightDiffers924 g2.49 kg
Weight & dimensions3 differ
WidthDiffers236 mm244 mm
DepthDiffers229 mm244 mm
HeightDiffers36.5 mm35 mm
Packaging contentidentical
Batteries 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)
Other features1 differ
WeightDiffers563 g1.09 kg
Technical detailsidentical
Warranty periodKnown for oneUnknown — not stated by the source3 year(s)

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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