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Side-by-side comparison of 4 motherboards
SpecificationASUS ROG Strix B850-G Gaming WiFi AMD AM5 B850 mATXASUS B850M AYW GAMING OC WIFI7 WMSI MAG B850M Mortar WiFi MotherboardMB ASUS PRO WS B850M-ACE SE
Price (new) (differs)£309.73as of 22 Sep, 18:22£316.99as of 22 Sep, 18:20£298.35as of 22 Sep, 18:22£349.99as of 22 Sep, 18:22
RRP (differs)not stated£316.99not stated£860.99
First available on Amazon (differs)Jul 2025 (1 yr 2 mo old)Mar 2026 (6 mo old)Jun 2025 (1 yr 3 mo old)Nov 2025 (10 mo old)
Brand (differs)ASUSASUSMSIASUS
RAM slots (differs)not statednot stated4not stated
Fastest RAM speed stated (differs)not statednot stated8,200 MT/snot stated
M.2 slots (differs)4332
PCIe 5.0 graphics slot (differs)Yesnot statedYesnot stated
PCIe 5.0 M.2 slot (differs)Yesnot statedYesYes
WiFi (differs)WiFi 7WiFi 7WiFi 7None named in the listing title
Bluetooth (differs)not statednot stated5.4not stated
Wired LAN (differs)2.5GbE2.5GbE5GbE2.5GbE
Power phases (as stated by the maker) (differs)14+2+112+2+1not statednot stated
BIOS flashback (differs)YesYesnot statednot stated
Debug LED / POST code (differs)Yesnot statednot statednot stated
ARGB headers (differs)YesYesnot statednot stated
Video outputs (differs)HDMI, DisplayPortHDMI, DisplayPortnot statednot stated
Audio codec (differs)ALC1220not statednot statednot stated
Amazon sales rank (differs)#332,410#77,920#117,517#51,546
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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