Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B850M-F AMD AM5 Socket DDR5 8200MHz OC Supported mATX…	ASUS Prime B850M-K Gaming Motherboard Socket AMD AM5	Asrock B850M-X R2.0 Amd B850 Am5 Micro Atx 2 Ddr5 Hdmi Dp 2.5G Lan…
Price (new) (differs)	£108.99as of 5 Nov, 18:20	£109.99as of 5 Nov, 18:20	£104.94as of 5 Nov, 18:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	£129.99	£199.99	£243.99
Price badge (differs)	not stated	not stated	30-day low
First available on Amazon (differs)	Jan 2024 (2 yr 10 mo old)	Apr 2025 (1 yr 6 mo old)	Jun 2025 (1 yr 4 mo old)
Brand (differs)	ASUS	ASUS	ASRock
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	not stated	2
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	8,200 MT/s	not stated	8,200 MT/s
M.2 slots (differs)	not stated	2	2
Newest PCIe generation stated (differs)	PCIe 4.0	PCIe 5.0	PCIe 5.0
PCIe 5.0 graphics slot (differs)	not stated	Yes	Yes
PCIe 5.0 M.2 slot (differs)	not stated	Yes	Yes
WiFi (differs)	None named in the listing title	None named in the listing title	WiFi 6E
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	not stated	2.5GbE	2.5GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	not stated	5 Gbps	5 Gbps
SATA ports (differs)	not stated	not stated	4
Power phases (as stated by the maker) (differs)	not stated	8+2+1	6+1+1
BIOS flashback (differs)	not stated	Yes	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers (differs)	not stated	Yes	not stated
Video outputs (differs)	HDMI	not stated	HDMI, DisplayPort
Audio codec (differs)	not stated	not stated	ALC897
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#36,973	#9,626	#58,771
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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