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Motherboard
B840 PRIME B840M-A-CSM
ASUS
$24646
B850M EAGLE WIFI6E
Gigabyte
$14999
Chipset
AMD B840AMD B850
Socket
AM5AM5
Form Factor
Micro ATXMicro ATX
Max Memory
192 GB256 GB
Memory Type
DDR5DDR5
Memory Slots
44
ECC Memory Support
No No
PCIe x16 Slots
32
PCIe x16 4.0 Slots
32
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)
SATA Ports
04
USB 2.0 Headers
22
USB 3.2 Headers
11
USB 3.2 (Gen 2) Headers
11
WiFi
802.11 ax802.11 ax
Ethernet Speed
2.5 Gbps2.5 Gbps
Audio Chipset
RealtekRealtek
Audio Channels
7.17.1
Optical S/PDIF Out
No No
BIOS Flashback
No No
Color
DarkDark
Supported CPUs
AMD Ryzen 7000, 8000, 9000AMD Ryzen 7000, 8000, 9000
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Comparison Analysis

Comparing the B840 PRIME B840M-A-CSM vs B850M EAGLE WIFI6E reveals distinct differences in their targeted use cases.

The B850M EAGLE WIFI6E is the more budget-friendly option, costing approximately $96 (64%) less than the B840 PRIME B840M-A-CSM.