Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B650M-A II-CSM Micro-ATX commercial motherboard	Asrock B650M Pro RS AMD B650 Emplacement AM5 micro ATX	ASRock B650M-HDV M.2 White Micro-ATX AM5 Motherboard
Price (new) (differs)	£138.00as of 20 Sep, 06:21	£131.79as of 20 Sep, 06:21	£138.73as of 20 Sep, 06:22
RRP (differs)	not stated	£282.99	not stated
First available on Amazon (differs)	Jan 2023 (3 yr 7 mo old)	Jan 2024 (2 yr 8 mo old)	Aug 2025 (1 yr old)
Brand (differs)	ASUS	ASRock	ASRock
Fastest RAM speed stated (differs)	6,400 MT/s	not stated	8,200 MT/s
M.2 slots (differs)	not stated	not stated	2
Newest PCIe generation stated (differs)	PCIe 5.0	not stated	PCIe 5.0
PCIe 5.0 graphics slot (differs)	not stated	not stated	Yes
PCIe 5.0 M.2 slot (differs)	Yes	not stated	Yes
Wired LAN (differs)	2.5GbE	not stated	2.5GbE
Fastest USB-C port (differs)	5 Gbps	not stated	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
ARGB headers (differs)	Yes	not stated	not stated
Video outputs (differs)	HDMI, DisplayPort	not stated	HDMI, DisplayPort
Colour (differs)	not stated	not stated	White
Amazon sales rank (differs)	#87,196	#21,859	#21,935
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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