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Motherboard
B840 PRIME M-A WIFI
ASUS
$50483
X870E AORUS MASTER
Gigabyte
$49699
Chipset
AMD B840AMD X870E
Socket
AM5AM5
Form Factor
Micro ATXATX
Max Memory
192 GB256 GB
Memory Type
DDR5DDR5
Memory Slots
44
ECC Memory Support
No No
PCIe x16 Slots
33
PCIe x16 4.0 Slots
33
M.2 Slots
44
M.2 Slot Specifics
  1. 2280M (PCIe4.0x4)
  2. 2242-2260M (PCIe4.0x4)
  3. 2280M (PCIe4.0x4)
  4. 2280M (PCIe4.0x4)
  1. 2580-25110M (PCIe4.0x4)
  2. 2280M (PCIe4.0x4)
  3. 2280-22110M (PCIe4.0x4)
  4. 2280M (PCIe4.0x4)
  5. 2280-22110M (PCIe4.0x4)
  6. 2280M (PCIe4.0x4)
  7. 2280-22110M (PCIe4.0x4)
  8. 2280M (PCIe4.0x4)
USB 2.0 Headers
22
USB 3.2 Headers
12
USB 3.2 (Gen 2) Headers
10
WiFi
802.11 ax802.11 ax
Ethernet Speed
2.5 Gbps5 Gbps
Audio Chipset
RealtekRealtek
Audio Channels
7.17.1
Optical S/PDIF Out
No Yes
BIOS Flashback
No No
Color
DarkDark
Supported CPUs
AMD Ryzen 7000, 8000, 9000AMD Ryzen 7000, 8000, 9000
M.2 Heatsink/Shields
- Yes
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Comparison Analysis

Comparing the B840 PRIME M-A WIFI vs X870E AORUS MASTER reveals distinct differences in their targeted use cases.

Both components are priced similarly, making the choice dependent on specific features rather than budget.