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Motherboard	$332⁵⁹	$329⁰⁰
Chipset	AMD B840	AMD B850
Socket	AM5	AM5
Form Factor	Micro ATX	ATX
Max Memory	256 GB	256 GB
Memory Type	DDR5	DDR5
Memory Slots	4	4
ECC Memory Support	No	No
PCIe x16 Slots	2	0
PCIe x16 4.0 Slots	2	3
M.2 Slots	2	6
M.2 Slot Specifics	2280M (PCIe4.0x4) 2280M (PCIe4.0x4)	2580-25110M (PCIe4.0x4) 2280M (PCIe4.0x4) 2580-25110M (PCIe4.0x4) 2280M (PCIe4.0x4) 2580-25110M (PCIe4.0x4) 2280M (PCIe4.0x4)
USB 2.0 Headers	2	2
USB 3.2 Headers	1	1
USB 3.2 (Gen 2) Headers	1	0
WiFi	802.11 ax	802.11 ax
Ethernet Speed	2.5 Gbps	10 Gbps
Audio Chipset	Realtek	Realtek
Audio Channels	7.1	7.1
Optical S/PDIF Out	No	No
BIOS Flashback	No	No
Color	Dark	Dark
Supported CPUs	AMD Ryzen 7000, 8000, 9000	AMD Ryzen 7000, 8000, 9000
M.2 Heatsink/Shields	-	No
	Amazon — Check	Amazon — Check Newegg — Check

Comparison Analysis

Comparing the B840M DS3H vs B850 AI TOP reveals distinct differences in their targeted use cases.

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