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Side-by-side comparison of 3 motherboards
SpecificationMSI MAG B850M MORTAR WIFI MotherboardMSI PRO B850M-A WiFi MotherboardMSI PRO B850M-A WIFI PZ Motherboard
Price (new) (differs)£179.99as of 20 Sep, 06:22£182.85as of 20 Sep, 06:22£189.95as of 20 Sep, 06:22
Amazon Warehouse offer (differs)£157.57 (Used - Like New)as of 20 Sep, 06:22not statednot stated
RRP (differs)£209.99not stated£189.99
Price badgenot statednot statednot stated
First available on Amazon (differs)May 2025 (1 yr 4 mo old)Jun 2025 (1 yr 3 mo old)Oct 2025 (10 mo old)
BrandMSIMSIMSI
SocketAM5AM5AM5
ChipsetB850B850B850
Form factorMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR5DDR5DDR5
RAM slots444
Maximum RAMnot statednot statednot stated
Fastest RAM speed stated8,200 MT/s8,200 MT/s8,200 MT/s
M.2 slots (differs)322
Newest PCIe generation statedPCIe 5.0PCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotYesYesYes
PCIe 5.0 M.2 slotYesYesYes
WiFiWiFi 7WiFi 7WiFi 7
Bluetooth5.45.45.4
Wired LAN5GbE5GbE5GbE
USB4 / Thunderboltnot statednot statednot stated
Fastest USB-C port (differs)20 Gbps10 Gbps10 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 headersnot statednot statednot stated
Video outputsnot statednot statednot stated
Audio codecnot statednot statednot stated
Colournot statednot statednot stated
Amazon sales rank (differs)#2,959#111,188#1,062
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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