Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	MSI PRO B850-S WIFI6E Motherboard	MB ASRock AMD AM5 B850 Pro RS	MB ASRock AMD AM5 B850 Pro-A WiFi
Price (new) (differs)	£152.65as of 5 Nov, 18:22	£150.14as of 5 Nov, 18:20	£147.92as of 5 Nov, 18:20
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	£363.99	£336.99
Price badge	not stated	not stated	not stated
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)
Brand (differs)	MSI	ASRock	ASRock
Socket	AM5	AM5	AM5
Chipset	B850	B850	B850
Form factor	ATX	ATX	ATX
Memory type	DDR5	DDR5	DDR5
RAM slots (differs)	4	not stated	not stated
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	8,200 MT/s	not stated	not stated
M.2 slots (differs)	2	not stated	not stated
Newest PCIe generation stated (differs)	PCIe 5.0	not stated	not stated
PCIe 5.0 graphics slot	not stated	not stated	not stated
PCIe 5.0 M.2 slot (differs)	Yes	not stated	not stated
WiFi (differs)	WiFi 6E	None named in the listing title	Yes (generation not stated)
Bluetooth (differs)	5.3	not stated	not stated
Wired LAN (differs)	2.5GbE	not stated	not stated
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	10 Gbps	not stated	not stated
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker)	not stated	not stated	not stated
BIOS flashback	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers	not stated	not stated	not stated
Video outputs	not stated	not stated	not stated
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#220,184	#21,333	#31,519
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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