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Compare 4 motherboards

Side-by-side comparison of 4 motherboards
SpecificationASUS Prime B550M-A AMD Ryzen AM4 Micro ATX MotherboardASUS PRO B550M-C/CSM Business Motherboard Socket AM4GIGABYTE B550M DS3H AC R2 AMD AM4 MotherboardMSI B550M Gaming Plus WIFI6E Motherboard
Price (new) (differs)£105.86as of 20 Sep, 06:20£112.18as of 20 Sep, 06:20£104.64as of 20 Sep, 06:22£99.85as of 20 Sep, 06:22
Amazon Warehouse offernot statednot statednot statednot stated
RRP (differs)not stated£143.99not statednot stated
Price badgenot statednot statednot statednot stated
First available on Amazon (differs)Jan 2022 (4 yr 8 mo old)Jan 2021 (5 yr 8 mo old)Jun 2025 (1 yr 3 mo old)Aug 2026 (1 mo old)
Brand (differs)ASUSASUSGigabyteMSI
SocketAM4AM4AM4AM4
ChipsetB550B550B550B550
Form factorMicro-ATXMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR4DDR4DDR4DDR4
RAM slots (differs)not statednot stated44
Maximum RAMnot statednot statednot statednot stated
Fastest RAM speed stated (differs)not statednot statednot stated4,400 MT/s
M.2 slots2222
Newest PCIe generation statedPCIe 4.0PCIe 4.0PCIe 4.0PCIe 4.0
PCIe 5.0 graphics slotnot statednot statednot statednot stated
PCIe 5.0 M.2 slotnot statednot statednot statednot stated
WiFi (differs)None named in the listing titleNone named in the listing titleWiFi 5WiFi 6E
Bluetooth (differs)not statednot statednot stated5.3
Wired LAN (differs)1GbE2.5GbE1GbE1GbE
USB4 / Thunderboltnot statednot statednot statednot stated
Fastest USB-C port (differs)not stated10 Gbpsnot statednot stated
SATA portsnot statednot statednot statednot stated
Power phases (as stated by the maker) (differs)not statednot stated5+3not stated
BIOS flashbacknot statednot statednot statednot stated
Debug LED / POST codenot statednot statednot statednot stated
ARGB headers (differs)Yesnot statednot statednot stated
Video outputs (differs)HDMIHDMI, DisplayPortHDMI, DisplayPortnot stated
Audio codecnot statednot statednot statednot stated
Colournot statednot statednot statednot stated
Amazon sales rank (differs)#227,737#219,255#46,387#31,410
BuyCheck price on AmazonCheck price on AmazonCheck price on AmazonCheck 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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