Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B550-PLUS	MSI B550-A PRO Motherboard ATX	Gigabyte B550 EAGLE Motherboard
Price (new) (differs)	£92.66as of 20 Sep, 06:20	£89.99as of 20 Sep, 06:20	£94.66as of 20 Sep, 06:22
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	£124.56	£104.99	£102.41
Price badge (differs)	90-day low	90-day low	30-day low
First available on Amazon (differs)	Jan 2022 (4 yr 8 mo old)	Jun 2020 (6 yr 3 mo old)	Feb 2025 (1 yr 7 mo old)
Brand (differs)	ASUS	MSI	Gigabyte
Socket	AM4	AM4	AM4
Chipset	B550	B550	B550
Form factor	ATX	ATX	ATX
Memory type	DDR4	DDR4	DDR4
RAM slots	not stated	not stated	not stated
Maximum RAM (differs)	not stated	128 GB	not stated
Fastest RAM speed stated (differs)	not stated	4,400 MT/s	3,200 MT/s
M.2 slots (differs)	2	not stated	2
Newest PCIe generation stated	PCIe 4.0	PCIe 4.0	PCIe 4.0
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	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	10 Gbps	not stated	not stated
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker) (differs)	not stated	not stated	10+3+1
BIOS flashback (differs)	not stated	Yes	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers (differs)	Yes	Yes	not stated
Video outputs (differs)	not stated	HDMI	HDMI, DisplayPort
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#1,413	#1,256	#1,402
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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