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SpecificationASUS ROG Strix B850-G Gaming WiFi AMD AM5 B850 mATXMSI MAG B850M Mortar WiFi Motherboard
Price (new) (differs)£309.73as of 22 Sep, 18:22£298.35as of 22 Sep, 18:22
Amazon Warehouse offernot statednot stated
RRPnot statednot stated
Price badgenot statednot stated
First available on Amazon (differs)Jul 2025 (1 yr 2 mo old)Jun 2025 (1 yr 3 mo old)
Brand (differs)ASUSMSI
SocketAM5AM5
ChipsetB850B850
Form factorMicro-ATXMicro-ATX
Memory typeDDR5DDR5
RAM slots (differs)not stated4
Maximum RAMnot statednot stated
Fastest RAM speed stated (differs)not stated8,200 MT/s
M.2 slots (differs)43
Newest PCIe generation statedPCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotYesYes
PCIe 5.0 M.2 slotYesYes
WiFiWiFi 7WiFi 7
Bluetooth (differs)not stated5.4
Wired LAN (differs)2.5GbE5GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C port20 Gbps20 Gbps
SATA portsnot statednot stated
Power phases (as stated by the maker) (differs)14+2+1not stated
BIOS flashback (differs)Yesnot stated
Debug LED / POST code (differs)Yesnot stated
ARGB headers (differs)Yesnot stated
Video outputs (differs)HDMI, DisplayPortnot stated
Audio codec (differs)ALC1220not stated
Colournot statednot stated
Amazon sales rank (differs)#332,410#117,517
BuyCheck 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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