Compare 2 motherboards

Side-by-side comparison of 2 motherboards

Specification	MSI MAG B850M Mortar WiFi Motherboard	ASUS ROG Strix B850-G Gaming WiFi AMD AM5 B850 mATX
Price (new) (differs)	£298.35as of 22 Sep, 18:22	£309.73as of 22 Sep, 18:22
First available on Amazon (differs)	Jun 2025 (1 yr 3 mo old)	Jul 2025 (1 yr 2 mo old)
Brand (differs)	MSI	ASUS
RAM slots (differs)	4	not stated
Fastest RAM speed stated (differs)	8,200 MT/s	not stated
M.2 slots (differs)	3	4
Bluetooth (differs)	5.4	not stated
Wired LAN (differs)	5GbE	2.5GbE
Power phases (as stated by the maker) (differs)	not stated	14+2+1
BIOS flashback (differs)	not stated	Yes
Debug LED / POST code (differs)	not stated	Yes
ARGB headers (differs)	not stated	Yes
Video outputs (differs)	not stated	HDMI, DisplayPort
Audio codec (differs)	not stated	ALC1220
Amazon sales rank (differs)	#117,517	#332,410
Buy	Check price on Amazon	Check price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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