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Product comparison · 2 motherboards

ASUS PRIME B840M-R vs ASUS ROG STRIX X870E-E GAMING WIFI7 NEO

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  • 60specifications compared
  • 28differ
  • 32identical
  • 34known 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
  • Supported storage drive interfaces
    • M.2, SATA III
    • SATA III, M.2
  • Number of storage drives supported
    • 6
    • 9
  • USB 2.0 connectors
    • 2
    • 3
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 1
    • 2
  • Number of chassis fan connectors
    • 2
    • 5

Side by side

Differences highlightedShow differences only
94 specifications
A

ASUS

PRIME B840M-RView product
B

ASUS

ROG STRIX X870E-E GAMING WIFI7 NEOView product
Memory3 differ
Number of memory slotsDiffers24
ECC сompatibilityDiffersNon-ECCECC & Non-ECC
Maximum internal memoryDiffers128 GB256 GB
Supported memory clock speed (max)Known for one7600 MHz
Storage controllers2 differ
Supported storage drive interfacesDiffersM.2, SATA IIISATA III, M.2
Number of storage drives supportedDiffers69
Internal I/O3 differ
USB 2.0 connectorsDiffers23
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers12
USB 3.2 Gen 2x2 connectorsKnown for one2
Number of chassis fan connectorsDiffers25
Chassis intrusion connectorKnown for oneYes
RGB LED pin headerKnown for oneYes
S/PDIF out connectorKnown for oneYes
Number of CPU fan connectorsKnown for one1
Number of COM connectorsKnown for one1
TPM connectorKnown for oneYes
Rear panel I/O ports4 differ
USB 2.0 ports quantityDiffers20
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers40
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers09
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers02
USB4 Gen 3x2 ports quantityKnown for one2
S/PDIF out portKnown for oneYes
PS/2 ports quantityKnown for one1
DisplayPorts quantityKnown for one1
Headphone outputsKnown for one1
Line-inKnown for oneYes
USB connector typeKnown for oneUSB Type-A
Network3 differ
Ethernet interface typeDiffersGigabit Ethernet5 Gigabit Ethernet
Wi-FiDiffersNoYes
Top Wi-Fi standardDiffersNot availableWi-Fi 7 (802.11be)
Wi-Fi standardsKnown for oneWi-Fi 7 (802.11be)
WLAN controller modelKnown for oneMediaTek MT7927
BluetoothKnown for oneYes
Features4 differ
Motherboard form factorDiffersmicro ATXATX
Motherboard chipsetDiffersAMD B840AMD X870E
Product colourDiffersMulticolourBlack
Windows operating systems supportedDiffersWindows 11, Windows 10 x64Windows 11
Expansion slots1 differ
PCI Express x16 (Gen 5.x) slotsKnown for one1
Number of M.2 (M) slotsDiffers25
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 one5.0
3rd M.2 largest key sizeKnown for one2280
3rd M.2 highest PCI Express generationKnown for one4.0
4th M.2 largest key sizeKnown for one2280
4th M.2 highest PCI Express generationKnown for one4.0
5th M.2 largest key sizeKnown for one2280
5th M.2 highest PCI Express generationKnown for one4.0
PCI Express x1 (Gen 3.x) slotsKnown for one1
BIOS1 differ
BIOS memory sizeDiffers256 Mbit64 Mbit
Clear CMOS buttonKnown for oneYes
Packaging data4 differ
Package widthDiffers260 mm353 mm
Package depthDiffers270 mm273 mm
Package heightDiffers51.5 mm68 mm
Package weightDiffers924 g2.7 kg
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 g1.9 kg

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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