Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS Prime B550M-K AMD B550	Asus PRIME B550M-K ARGB	ASRock B550M Phantom Gaming 4
Price (new) (differs)	£85.47as of 20 Sep, 06:20	£82.15as of 20 Sep, 06:20	£81.89as of 20 Sep, 06:20
RRP (differs)	£134.99	£99.99	£134.99
First available on Amazon (differs)	Jan 2022 (4 yr 8 mo old)	Jan 2023 (3 yr 8 mo old)	Mar 2021 (5 yr 6 mo old)
Brand (differs)	ASUS	ASUS	ASRock
RAM slots (differs)	not stated	2	not stated
Fastest RAM speed stated (differs)	4,400 MT/s	not stated	4,733 MT/s
M.2 slots (differs)	2	2	not stated
WiFi (differs)	WiFi 6	None named in the listing title	None named in the listing title
Wired LAN (differs)	1GbE	1GbE	not stated
Fastest USB-C port (differs)	not stated	5 Gbps	not stated
ARGB headers (differs)	not stated	Yes	not stated
Video outputs (differs)	HDMI	HDMI, DisplayPort	not stated
Amazon sales rank (differs)	#1,413	#84,725	#57,461
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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