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Product comparison · 2 motherboards

ASUS PRIME B840M-R vs GIGABYTE B850M AORUS STEALTH

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  • 66specifications compared
  • 30differ
  • 36identical
  • 53known for one product only

Key differences

The GIGABYTE B850M AORUS STEALTH has 2 more memory slots than the ASUS PRIME B840M-R (4 vs 2). The GIGABYTE B850M AORUS STEALTH has 600 MHz more supported memory clock speed (max) than the ASUS PRIME B840M-R (8200 MHz vs 7600 MHz). The GIGABYTE B850M AORUS STEALTH has 128 GB more maximum internal memory than the ASUS PRIME B840M-R (256 GB vs 128 GB). Only the GIGABYTE B850M AORUS STEALTH has Wi-Fi. RAID levels: 0, 1, 5, 10 on the ASUS PRIME B840M-R, 0, 1, 10, 5 on the GIGABYTE B850M AORUS STEALTH.

  • Number of memory slots
    • 2
    • 4
  • Supported memory clock speed (max)
    • 7600 MHz
    • 8200 MHz
  • Maximum internal memory
    • 128 GB
    • 256 GB
  • Number of HDDs supported
    • 4
    • 2
  • Number of storage drives supported
    • 6
    • 5
  • RAID levels
    • 0, 1, 5, 10
    • 0, 1, 10, 5
  • USB 3.2 Gen 2 (3.1 Gen 2) connectors
    • 0
    • 1
  • Number of SATA III connectors
    • 4
    • 2

Side by side

Differences highlightedShow differences only
119 specifications
A

ASUS

PRIME B840M-RView product
B

GIGABYTE

B850M AORUS STEALTHView 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
Supported processor socketsKnown for oneSocket AM5
Memory3 differ
Supported memory typesDDR5-SDRAMDDR5-SDRAM
Number of memory slotsDiffers24
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityNon-ECCNon-ECC
Supported memory clock speedsKnown for one8200,8000,7800,7600,7200,7000,6800,6600,6400,6200,6000,5600,5200,4800,4400 MHz
Supported memory clock speed (max)Differs7600 MHz8200 MHz
Maximum internal memoryDiffers128 GB256 GB
Unbuffered memoryYesYes
Maximum internal memory per slotKnown for one64 GB
Storage controllers4 differ
Supported storage drive typesHDD & SSDHDD & SSD
Supported storage drive interfacesDiffersM.2, SATA IIIM.2, PCI Express 4.0, PCI Express 5.0, SATA III
Number of HDDs supportedDiffers42
Number of storage drives supportedDiffers65
RAID supportYesYes
RAID levelsDiffers0, 1, 5, 100, 1, 10, 5
Graphicsidentical
Parallel processing technology supportNot supportedNot supported
Maximum resolutionKnown for one4096 x 2160 pixels
DirectX versionKnown for one12.0
Internal I/O3 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectors11
USB 3.2 Gen 2 (3.1 Gen 2) connectorsDiffers01
Number of SATA III connectorsDiffers42
Front panel audio connectorYesYes
Front panel connectorKnown for oneYes
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 one1
12V power connectorYesYes
Number of water pump connectorsKnown for one2
TPM connectorYesYes
RGB LED pin headerKnown for oneYes
Number of RGB LED pin headersKnown for one4
S/PDIF out connectorKnown for oneYes
Number of COM connectorsKnown for one1
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers24
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 quantityDiffers01
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers01
Ethernet LAN (RJ-45) ports11
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
Line-inYesYes
S/PDIF out portKnown for oneYes
Digital audio optical outKnown for one1
WiFi-AP antenna jackKnown for one2
PS/2 ports quantityKnown for one1
Microphone inKnown for oneYes
USB connector typeKnown for oneUSB Type-A
Network3 differ
Ethernet LANYesYes
Ethernet interface typeDiffersGigabit Ethernet2.5 Gigabit Ethernet, 5 Gigabit Ethernet, Gigabit Ethernet, Fast Ethernet
LAN controllerKnown for oneRealtek RTL8126
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 6E (802.11ax)
Wi-Fi standardsKnown for one802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax)
WLAN controller modelKnown for oneRealtek RTL8922AE
BluetoothKnown for oneYes
Bluetooth versionKnown for one5.4
Features3 differ
Component forPCPC
Motherboard form factormicro ATXmicro ATX
Motherboard chipset familyAMDAMD
Motherboard chipsetDiffersAMD B840AMD B850
Audio chipKnown for oneRealtek ALC1220
Audio output channels7.1 channels7.1 channels
Product colourDiffersMulticolourBlack
PC health monitoringKnown for oneFan, Temperature, Voltage, Water cooling
Cooling typeKnown for onePassive
Power source typeKnown for oneATX
Windows operating systems supportedDiffersWindows 11, Windows 10 x64Windows 11 Home
Expansion slots1 differ
PCI Express x16 (Gen 4.x) slots11
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
BIOS1 differ
BIOS typeUEFI AMIUEFI AMI
BIOS memory sizeDiffers256 Mbit512 Mbit
ACPI versionKnown for one5.0
Clear CMOS jumperKnown for oneYes
Clear CMOS buttonKnown for oneYes
Desktop Management Interface (DMI) versionKnown for one2.7
System Management BIOS (SMBIOS) versionKnown for one2.7
Logistics dataidentical
Products per shipping (inner) caseKnown for one1 pc(s)
Batteryidentical
Battery weightKnown for one3 g
Lithium weight per batteryKnown for one0.07 g
Number of battery cellsKnown for one1
Battery capacityKnown for one220 mAh
Battery technologyKnown for oneLithium-Manganese Dioxide (LiMnO2)
Battery typeKnown for oneCR2032
Packaging data4 differ
Package widthDiffers260 mm268 mm
Package depthDiffers270 mm287 mm
Package heightDiffers51.5 mm89 mm
Package weightDiffers924 g2.66 kg
Weight & dimensions3 differ
WidthDiffers236 mm244 mm
DepthDiffers229 mm244 mm
HeightDiffers36.5 mm35 mm
Packaging contentidentical
Antenna includedKnown for oneYes
Batteries includedKnown for oneYes
Screws includedKnown for oneYes
Bundled softwareKnown for oneNorton® Internet Security (OEM version)
Other features1 differ
WeightDiffers563 g2.29 kg
Technical detailsidentical
Warranty periodKnown for one3 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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