Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS Prime B850M-K AMD Micro-ATX Motherboard	Asrock B850M-X R2.0 Amd B850 Am5 Micro Atx 2 Ddr5 Hdmi Dp 2.5G Lan…	ASUS EX-B850M-V7 AMD Micro-ATX Motherboard
Price (new) (differs)	£96.00as of 18 Oct, 06:23	£104.94as of 18 Oct, 06:22	£104.32as of 18 Oct, 06:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	£243.99	£200.99
Price badge (differs)	not stated	30-day low	Lowest we've recorded
First available on Amazon (differs)	Mar 2025 (1 yr 6 mo old)	Jun 2025 (1 yr 4 mo old)	Mar 2026 (7 mo old)
Brand (differs)	ASUS	ASRock	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	2	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	2	2	2
Newest PCIe generation stated	PCIe 5.0	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	WiFi 6E	None named in the listing title
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	2.5GbE	2.5GbE	5GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	5 Gbps	5 Gbps	10 Gbps
SATA ports (differs)	not stated	4	not stated
Power phases (as stated by the maker) (differs)	8+2+1	6+1+1	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	HDMI, DisplayPort	HDMI
Audio codec (differs)	not stated	ALC897	not stated
Colour (differs)	not stated	not stated	Black
Amazon sales rank (differs)	#93,380	#65,813	#1,549
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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