Compare Motherboards

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Motherboard	$139⁹⁹	$89⁹⁹
Chipset	AMD B850	AMD B650
Socket	AM5	AM5
Form Factor	ATX	Micro ATX
Max Memory	256 GB	96 GB
Memory Type	DDR5	DDR5
Memory Slots	4	2
ECC Memory Support	No	No
PCIe x16 Slots	2	1
PCIe x16 4.0 Slots	2	1
PCIe x1 Slots	0	2
M.2 Slots	6	2
M.2 Slot Specifics	2280M (PCIe4.0x4) 2280M (PCIe4.0x4) 2230-2242M (PCIe4.0x4) 2280M (PCIe4.0x4) 2280M (PCIe4.0x4) 2280E (PCIe4.0x4)	2280M (PCIe4.0x4) 2260-2280M (PCIe4.0x4) 2280M (PCIe4.0x4) 2280E (PCIe4.0x4)
SATA Ports	4	4
USB 2.0 Headers	2	2
USB 3.2 Headers	2	1
WiFi	802.11 ax	802.11 ax
Ethernet Speed	2.5 Gbps	1 Gbps
Audio Chipset	Realtek	Realtek
Audio Channels	7.1	7.1
Optical S/PDIF Out	No	No
BIOS Flashback	No	Yes
Color	Dark	Dark
Supported CPUs	AMD Ryzen 7000, 8000, 9000	AMD Ryzen 7000, 8000, 9000
M.2 Heatsink/Shields	Yes	No
	Amazon — Check Newegg — Check	Amazon — Check Newegg — Check

Comparison Analysis

Comparing the B850 Pro RS WiFi vs B650 M-H/M.2+ reveals distinct differences in their targeted use cases.

The B650 M-H/M.2+ is the more budget-friendly option, costing approximately $50 (56%) less than the B850 Pro RS WiFi.