Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS ROG Strix B850-G Gaming WiFi AMD AM5 B850 mATX	MSI MAG B850M Mortar WiFi Motherboard	MB ASUS PRO WS B850M-ACE SE
Price (new) (differs)	£309.73as of 22 Sep, 18:22	£298.35as of 22 Sep, 18:22	£349.99as of 22 Sep, 18:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	not stated	£860.99
Price badge	not stated	not stated	not stated
First available on Amazon (differs)	Jul 2025 (1 yr 2 mo old)	Jun 2025 (1 yr 3 mo old)	Nov 2025 (10 mo old)
Brand (differs)	ASUS	MSI	ASUS
Socket	AM5	AM5	AM5
Chipset	B850	B850	B850
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR5	DDR5	DDR5
RAM slots (differs)	not stated	4	not stated
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	not stated	8,200 MT/s	not stated
M.2 slots (differs)	4	3	2
Newest PCIe generation stated	PCIe 5.0	PCIe 5.0	PCIe 5.0
PCIe 5.0 graphics slot (differs)	Yes	Yes	not stated
PCIe 5.0 M.2 slot	Yes	Yes	Yes
WiFi (differs)	WiFi 7	WiFi 7	None named in the listing title
Bluetooth (differs)	not stated	5.4	not stated
Wired LAN (differs)	2.5GbE	5GbE	2.5GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port	20 Gbps	20 Gbps	20 Gbps
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker) (differs)	14+2+1	not stated	not stated
BIOS flashback (differs)	Yes	not stated	not stated
Debug LED / POST code (differs)	Yes	not stated	not stated
ARGB headers (differs)	Yes	not stated	not stated
Video outputs (differs)	HDMI, DisplayPort	not stated	not stated
Audio codec (differs)	ALC1220	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#332,410	#117,517	#51,546
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.

Find another board to compare