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Side-by-side comparison of 3 motherboards
SpecificationMSI PRO B850-S WIFI6E MotherboardMSI PRO B850-P WIFI MotherboardMSI MAG B850 Gaming Plus MAX WiFi Motherboard
Price (new) (differs)£109.99as of 20 Sep, 06:20£174.00as of 20 Sep, 06:21not stated
Amazon Warehouse offernot statednot statednot stated
RRP (differs)£159.99£189.99not stated
Price badge (differs)Lowest we've recordednot statednot stated
First available on Amazon (differs)Jun 2025 (1 yr 2 mo old)Jan 2025 (1 yr 8 mo old)Feb 2026 (6 mo old)
BrandMSIMSIMSI
SocketAM5AM5AM5
ChipsetB850B850B850
Form factorATXATXATX
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)233
Newest PCIe generation statedPCIe 5.0PCIe 5.0PCIe 5.0
PCIe 5.0 graphics slot (differs)not statedYesYes
PCIe 5.0 M.2 slotYesYesYes
WiFi (differs)WiFi 6EWiFi 7WiFi 7
Bluetooth (differs)5.35.45.4
Wired LAN (differs)2.5GbE5GbE5GbE
USB4 / Thunderboltnot statednot statednot stated
Fastest USB-C port10 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)#1,062#1,076#168,594
BuyCheck price on AmazonCheck price on AmazonSee it 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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