Compare 4 motherboards

Side-by-side comparison of 4 motherboards
Specification	MSI PRO B850-S WIFI6E Motherboard	MB ASRock AMD AM5 B850 Pro RS	MB ASRock AMD AM5 B850 Pro-A WiFi	ASUS PRIME B850-PLUS-CSM
Price (new) (differs)	£152.65as of 5 Nov, 18:22	£150.14as of 5 Nov, 18:20	£147.92as of 5 Nov, 18:20	£161.99as of 5 Nov, 18:20
RRP (differs)	not stated	£363.99	£336.99	£161.99
First available on Amazon (differs)	Sep 2025 (1 yr 1 mo old)	Jan 2025 (1 yr 9 mo old)	Jan 2025 (1 yr 9 mo old)	Mar 2025 (1 yr 7 mo old)
Brand (differs)	MSI	ASRock	ASRock	ASUS
RAM slots (differs)	4	not stated	not stated	not stated
Fastest RAM speed stated (differs)	8,200 MT/s	not stated	not stated	not stated
M.2 slots (differs)	2	not stated	not stated	3
Newest PCIe generation stated (differs)	PCIe 5.0	not stated	not stated	PCIe 5.0
PCIe 5.0 M.2 slot (differs)	Yes	not stated	not stated	not stated
WiFi (differs)	WiFi 6E	None named in the listing title	Yes (generation not stated)	WiFi 6E
Bluetooth (differs)	5.3	not stated	not stated	not stated
Wired LAN (differs)	2.5GbE	not stated	not stated	2.5GbE
Fastest USB-C port (differs)	10 Gbps	not stated	not stated	10 Gbps
Power phases (as stated by the maker) (differs)	not stated	not stated	not stated	8+2+1
ARGB headers (differs)	not stated	not stated	not stated	Yes
Video outputs (differs)	not stated	not stated	not stated	HDMI, DisplayPort
Amazon sales rank (differs)	#220,184	#21,333	#31,519	#9,626
Buy	Check price on Amazon	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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