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Motherboard
B850 TUF GAMING PLUS WIFI
ASUS
$20996
PRIME B650M-A II-CSM
ASUS
$26733
Chipset
AMD B850AMD B650
Socket
AM5AM5
Form Factor
ATXMicro ATX
Max Memory
256 GB192 GB
Memory Type
DDR5DDR5
Memory Slots
44
ECC Memory Support
Yes No
PCIe x16 Slots
23
PCIe x16 4.0 Slots
23
PCIe x1 Slots
20
M.2 Slots
42
M.2 Slot Specifics
  1. 2280M (PCIe4.0x4)
  2. 242/2260/2280/22110M (PCIe4.0x4)
  3. 2280M (PCIe4.0x4)
  4. 2280M (PCIe4.0x4)
  1. 2242-2260M (PCIe4.0x4)
  2. 2280M (PCIe4.0x4)
  3. 2242-2260M (PCIe4.0x4)
  4. 2280M (PCIe4.0x4)
SATA Ports
44
USB 2.0 Headers
22
USB 3.2 Headers
11
USB 3.2 (Gen 2) Headers
11
WiFi
802.11 be802.11 ax
Bluetooth
5.4-
Ethernet Speed
2.5 Gbps2.5 Gbps
Audio Chipset
RealtekRealtek
Audio Channels
7.17.1
Optical S/PDIF Out
No No
BIOS Flashback
Yes Yes
Color
DarkDark
Supported CPUs
AMD Ryzen 7000, 8000, 9000AMD Ryzen 7000, 8000, 9000
M.2 Heatsink/Shields
- Yes
Product Release
2025-
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Comparison Analysis

Comparing the B850 TUF GAMING PLUS WIFI vs PRIME B650M-A II-CSM reveals distinct differences in their targeted use cases.

The B850 TUF GAMING PLUS WIFI is the more budget-friendly option, costing approximately $57 (27%) less than the PRIME B650M-A II-CSM.