Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS Prime B650M-A WiFi II AMD AM5 Micro-ATX Motherboard	ASUS PRIME B650M-A II-CSM	ASRock B650M Pro X3D WiFi 6E AMD AM5 Micro-ATX Motherboard
Price (new) (differs)	£162.99as of 20 Sep, 06:21	£169.63as of 20 Sep, 06:21	£170.71as of 20 Sep, 06:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	£191.99	not stated	not stated
Price badge (differs)	not stated	not stated	90-day low
First available on Amazon (differs)	Jun 2019 (7 yr 3 mo old)	Jun 2023 (3 yr 2 mo old)	Jun 2025 (1 yr 3 mo old)
Brand (differs)	ASUS	ASUS	ASRock
Socket	AM5	AM5	AM5
Chipset	B650	B650	B650
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR5	DDR5	DDR5
RAM slots (differs)	not stated	not stated	4
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	not stated	not stated	8,000 MT/s
M.2 slots (differs)	not stated	not stated	3
Newest PCIe generation stated	PCIe 5.0	PCIe 5.0	PCIe 5.0
PCIe 5.0 graphics slot (differs)	not stated	not stated	Yes
PCIe 5.0 M.2 slot	Yes	Yes	Yes
WiFi (differs)	WiFi 6	None named in the listing title	WiFi 6E
Bluetooth	not stated	not stated	not stated
Wired LAN	2.5GbE	2.5GbE	2.5GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	5 Gbps	5 Gbps	10 Gbps
SATA ports (differs)	not stated	not stated	4
Power phases (as stated by the maker) (differs)	not stated	not stated	8+2+1
BIOS flashback (differs)	Yes	not stated	Yes
Debug LED / POST code	not stated	not stated	not stated
ARGB headers	not stated	not stated	not stated
Video outputs (differs)	HDMI, DisplayPort	not stated	HDMI, DisplayPort
Audio codec (differs)	not stated	not stated	ALC897
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#13,264	#121,599	#223,032
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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