Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS Prime B450M-A II	Asustek computer PRIME B450M-K II ATX +2GLN+U3.2+M2 SATA6+4XDDR9	Asro B450M PRO4 R2.0 B450
Price (new) (differs)	not stated	£88.37as of 20 Sep, 06:20	£189.17as of 20 Sep, 06:20
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	£72.99	not stated
Price badge	not stated	not stated	not stated
First available on Amazon (differs)	Oct 2020 (5 yr 11 mo old)	Nov 2020 (5 yr 10 mo old)	Jan 2024 (2 yr 8 mo old)
Brand (differs)	ASUS	ASUS	ASRock
Socket	AM4	AM4	AM4
Chipset	B450	B450	B450
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4
RAM slots (differs)	4	not stated	not stated
Maximum RAM (differs)	128 GB	not stated	not stated
Fastest RAM speed stated (differs)	4,400 MT/s	not stated	not stated
M.2 slots	not stated	not stated	not stated
Newest PCIe generation stated (differs)	not stated	not stated	PCIe 3.0
PCIe 5.0 graphics slot	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated	not stated
WiFi	None named in the listing title	None named in the listing title	None named in the listing title
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	1GbE	1GbE	not stated
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port	not stated	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 (differs)	Yes	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	not stated	not stated
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#145,061	#1,413	#84,194
Buy	See it 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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