Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B850-PLUS-CSM	MSI B850 Gaming PRO WIFI6E Motherboard	MSI B850 Gaming Plus WIFI6E Motherboard
Price (new) (differs)	£161.99as of 20 Sep, 06:22	£173.47as of 20 Sep, 06:22	£167.99as of 20 Sep, 06:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	£161.99	not stated	not stated
Price badge	not stated	not stated	not stated
First available on Amazon (differs)	Mar 2025 (1 yr 6 mo old)	Oct 2025 (11 mo old)	Nov 2025 (9 mo old)
Brand (differs)	ASUS	MSI	MSI
Socket	AM5	AM5	AM5
Chipset	B850	B850	B850
Form factor	ATX	ATX	ATX
Memory type	DDR5	DDR5	DDR5
RAM slots (differs)	not stated	4	4
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	not stated	8,200 MT/s	8,200 MT/s
M.2 slots (differs)	3	2	2
Newest PCIe generation stated	PCIe 5.0	PCIe 5.0	PCIe 5.0
PCIe 5.0 graphics slot	not stated	not stated	not stated
PCIe 5.0 M.2 slot (differs)	not stated	Yes	Yes
WiFi	WiFi 6E	WiFi 6E	WiFi 6E
Bluetooth (differs)	not stated	5.3	5.3
Wired LAN	2.5GbE	2.5GbE	2.5GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port	10 Gbps	10 Gbps	10 Gbps
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker) (differs)	8+2+1	not stated	not stated
BIOS flashback	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers (differs)	Yes	not stated	not stated
Video outputs (differs)	HDMI, DisplayPort	not stated	not stated
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#13,264	#169,174	#192,738
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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