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Compare 3 motherboards

Side-by-side comparison of 3 motherboards
SpecificationASUS PRIME B550M-AMSI PRO B550M-P WIFI6E MotherboardASUS Prime B550M-A/CSM AMD AM4
Price (new) (differs)£85.68as of 5 Nov, 18:21£89.99as of 5 Nov, 18:22£89.54as of 5 Nov, 18:22
Amazon Warehouse offer (differs)not stated£82.72 (Used - Like New)as of 5 Nov, 18:22not stated
RRP (differs)£93.86£89.99not stated
Price badge (differs)not statedLowest we've recordednot stated
First available on Amazon (differs)Jan 2022 (4 yr 10 mo old)Jun 2026 (4 mo old)Jun 2020 (6 yr 4 mo old)
Brand (differs)ASUSMSIASUS
SocketAM4AM4AM4
ChipsetB550B550B550
Form factorMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR4DDR4DDR4
RAM slots (differs)not stated4not stated
Maximum RAMnot statednot statednot stated
Fastest RAM speed stated (differs)not stated4,400 MT/snot stated
M.2 slots (differs)22not stated
Newest PCIe generation statedPCIe 4.0PCIe 4.0PCIe 4.0
PCIe 5.0 graphics slotnot statednot statednot stated
PCIe 5.0 M.2 slotnot statednot statednot stated
WiFi (differs)None named in the listing titleWiFi 6ENone named in the listing title
Bluetooth (differs)not stated5.3not stated
Wired LAN1GbE1GbE1GbE
USB4 / Thunderboltnot statednot statednot stated
Fastest USB-C port (differs)not statednot stated10 Gbps
SATA portsnot statednot statednot stated
Power phases (as stated by the maker)not statednot statednot stated
BIOS flashbacknot statednot statednot stated
Debug LED / POST codenot statednot statednot stated
ARGB headers (differs)Yesnot statednot stated
Video outputs (differs)not statednot statedHDMI
Audio codecnot statednot statednot stated
Colournot statednot statednot stated
Amazon sales rank (differs)#1,641#1,268#172,396
BuyCheck 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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