Compare 4 motherboards

Side-by-side comparison of 4 motherboards
Specification	Asrock B550 Pro4 AMD B550 Emplacement AM4 ATX	Gigabyte B550 EAGLE Motherboard	MSI B550-A PRO ProSeries Motherboard	ASUS PRIME B550-PLUS
Price (new) (differs)	£96.18as of 21 Sep, 12:20	£95.78as of 21 Sep, 12:22	£93.98as of 21 Sep, 12:20	£103.19as of 21 Sep, 12:20
Amazon Warehouse offer	not stated	not stated	not stated	not stated
RRP (differs)	£183.17	£102.41	£199.99	£124.56
Price badge (differs)	not stated	not stated	90-day low	not stated
First available on Amazon (differs)	Jan 2024 (2 yr 8 mo old)	Feb 2025 (1 yr 7 mo old)	Jun 2020 (6 yr 3 mo old)	Jan 2022 (4 yr 8 mo old)
Brand (differs)	ASRock	Gigabyte	MSI	ASUS
Socket	AM4	AM4	AM4	AM4
Chipset	B550	B550	B550	B550
Form factor	ATX	ATX	ATX	ATX
Memory type	DDR4	DDR4	DDR4	DDR4
RAM slots	not stated	not stated	not stated	not stated
Maximum RAM	not stated	not stated	not stated	not stated
Fastest RAM speed stated (differs)	not stated	3,200 MT/s	4,400 MT/s	not stated
M.2 slots (differs)	not stated	2	not stated	2
Newest PCIe generation stated (differs)	not stated	PCIe 4.0	PCIe 4.0	PCIe 4.0
PCIe 5.0 graphics slot	not stated	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	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	None named in the listing title
Bluetooth	not stated	not stated	not stated	not stated
Wired LAN (differs)	not stated	1GbE	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated	not stated
Fastest USB-C port (differs)	not stated	not stated	not stated	10 Gbps
SATA ports	not stated	not stated	not stated	not stated
Power phases (as stated by the maker) (differs)	not stated	10+3+1	not stated	not stated
BIOS flashback	not stated	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated	not stated
ARGB headers (differs)	not stated	not stated	not stated	Yes
Video outputs (differs)	not stated	HDMI, DisplayPort	HDMI, DisplayPort	not stated
Audio codec	not stated	not stated	not stated	not stated
Colour	not stated	not stated	not stated	not stated
Amazon sales rank (differs)	#90,418	#1,475	#28,571	#1,411
Buy	Check price on Amazon	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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