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Side-by-side comparison of 4 motherboards
SpecificationMSI B550M PRO-VDH Motherboard M-ATXASUS PRIME B550M-A WIFI II AMD Micro ATX Motherboard with PCIe 4.0GIGABYTE B550M Gaming X WIFI6 MotherboardASUS AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2
Price (new) (differs)£98.86as of 5 Nov, 18:20£99.24as of 5 Nov, 18:21£98.15as of 5 Nov, 18:22£99.95as of 5 Nov, 18:20
Amazon Warehouse offer (differs)£77.44 (Used - Like New)as of 5 Nov, 18:20not stated£91.13 (Used - Good)as of 5 Nov, 18:22not stated
RRP (differs)£94.99not statednot stated£200.20
Price badgenot statednot statednot statednot stated
First available on Amazon (differs)Sep 2020 (6 yr 2 mo old)Jul 2022 (4 yr 3 mo old)Mar 2025 (1 yr 7 mo old)Feb 2022 (4 yr 8 mo old)
Brand (differs)MSIASUSGigabyteASUS
SocketAM4AM4AM4AM4
ChipsetB550B550B550B550
Form factorMicro-ATXMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR4DDR4DDR4DDR4
RAM slots (differs)not statednot stated4not stated
Maximum RAM (differs)128 GBnot statednot statednot stated
Fastest RAM speed stated (differs)4,400 MT/snot statednot statednot stated
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 titleWiFi 6WiFi 6None named in the listing title
Bluetoothnot statednot statednot statednot stated
Wired LAN1GbE1GbE1GbE1GbE
USB4 / Thunderboltnot statednot statednot statednot stated
Fastest USB-C portnot statednot statednot 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 statedYes
Video outputs (differs)not statedHDMIHDMI, DisplayPortHDMI
Audio codecnot statednot statednot statednot stated
Colournot statednot statednot statednot stated
Amazon sales rank (differs)#11,768#114,715#21,878#203,200
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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