Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	MSI MAG B850M Mortar WiFi Motherboard	ASUS ROG Strix B850-G Gaming WiFi AMD AM5 B850 mATX	ASUS B850M AYW GAMING OC WIFI7 W
Price (new) (differs)	£298.35as of 23 Sep, 00:22	£309.73as of 23 Sep, 00:23	£316.99as of 23 Sep, 00:20
RRP (differs)	not stated	not stated	£316.99
First available on Amazon (differs)	Jun 2025 (1 yr 3 mo old)	Jul 2025 (1 yr 2 mo old)	Mar 2026 (6 mo old)
Brand (differs)	MSI	ASUS	ASUS
RAM slots (differs)	4	not stated	not stated
Fastest RAM speed stated (differs)	8,200 MT/s	not stated	not stated
M.2 slots (differs)	3	4	3
PCIe 5.0 graphics slot (differs)	Yes	Yes	not stated
PCIe 5.0 M.2 slot (differs)	Yes	Yes	not stated
Bluetooth (differs)	5.4	not stated	not stated
Wired LAN (differs)	5GbE	2.5GbE	2.5GbE
Power phases (as stated by the maker) (differs)	not stated	14+2+1	12+2+1
BIOS flashback (differs)	not stated	Yes	Yes
Debug LED / POST code (differs)	not stated	Yes	not stated
ARGB headers (differs)	not stated	Yes	Yes
Video outputs (differs)	not stated	HDMI, DisplayPort	HDMI, DisplayPort
Audio codec (differs)	not stated	ALC1220	not stated
Amazon sales rank (differs)	#117,512	#332,378	#77,871
Buy	Check price on Amazon	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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