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Compare 4 motherboards

Side-by-side comparison of 4 motherboards
SpecificationASUS B850M AYW GAMING OC WIFI7 WMSI MAG B850M Mortar WiFi MotherboardMB ASUS PRO WS B850M-ACE SEGIGABYTE B850M AORUS STEALTH Motherboard
Price (new) (differs)£316.99as of 20 Sep, 06:22£298.35as of 20 Sep, 06:22£349.99as of 20 Sep, 06:22£253.68as of 20 Sep, 06:22
Amazon Warehouse offernot statednot statednot statednot stated
RRP (differs)£316.99not stated£860.99not stated
Price badgenot statednot statednot statednot stated
First available on Amazon (differs)Mar 2026 (6 mo old)Jun 2025 (1 yr 3 mo old)Nov 2025 (10 mo old)Jun 2026 (3 mo old)
Brand (differs)ASUSMSIASUSGigabyte
SocketAM5AM5AM5AM5
ChipsetB850B850B850B850
Form factorMicro-ATXMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR5DDR5DDR5DDR5
RAM slots (differs)not stated4not statednot stated
Maximum RAMnot statednot statednot statednot stated
Fastest RAM speed stated (differs)not stated8,200 MT/snot stated8,200 MT/s
M.2 slots (differs)3323
Newest PCIe generation statedPCIe 5.0PCIe 5.0PCIe 5.0PCIe 5.0
PCIe 5.0 graphics slot (differs)not statedYesnot statednot stated
PCIe 5.0 M.2 slot (differs)not statedYesYesnot stated
WiFi (differs)WiFi 7WiFi 7None named in the listing titleWiFi 7
Bluetooth (differs)not stated5.4not statednot stated
Wired LAN (differs)2.5GbE5GbE2.5GbE5GbE
USB4 / Thunderboltnot statednot statednot statednot stated
Fastest USB-C port (differs)20 Gbps20 Gbps20 Gbpsnot stated
SATA portsnot statednot statednot statednot stated
Power phases (as stated by the maker) (differs)12+2+1not statednot stated8+2+2
BIOS flashback (differs)Yesnot statednot statednot stated
Debug LED / POST codenot statednot statednot statednot stated
ARGB headers (differs)Yesnot statednot statednot stated
Video outputs (differs)HDMI, DisplayPortnot statednot statednot stated
Audio codecnot statednot statednot statednot stated
Colournot statednot statednot statednot stated
Amazon sales rank (differs)#70,474#111,188#29,833#107,705
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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