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Compare 4 motherboards

Side-by-side comparison of 4 motherboards
SpecificationASUS PRIME B850M-A-CSMGIGABYTE B850M FORCE WIFI6E MotherboardASRock B850M Rock WiFi Socket AM5 Micro-ATX MotherboardB850M Challenger WiFi AM5 mATX HDMI/DP
Price (new) (differs)£144.98as of 5 Nov, 18:22£154.99as of 5 Nov, 18:22£144.04as of 5 Nov, 18:22£148.66as of 5 Nov, 18:22
Amazon Warehouse offernot statednot statednot statednot stated
RRP (differs)£377.99£129.99£270.99£311.99
Price badgenot statednot statednot statednot stated
First available on Amazon (differs)Apr 2025 (1 yr 7 mo old)Jul 2025 (1 yr 3 mo old)Jan 2026 (9 mo old)Feb 2026 (8 mo old)
Brand (differs)ASUSGigabyteASRockASRock
SocketAM5AM5AM5AM5
ChipsetB850B850B850B850
Form factorMicro-ATXMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR5DDR5DDR5DDR5
RAM slots (differs)not stated224
Maximum RAMnot statednot statednot statednot stated
Fastest RAM speed stated (differs)not stated9,600 MT/s8,200 MT/s8,000 MT/s
M.2 slots (differs)331not stated
Newest PCIe generation statedPCIe 5.0PCIe 5.0PCIe 5.0PCIe 5.0
PCIe 5.0 graphics slot (differs)not statednot statedYesYes
PCIe 5.0 M.2 slot (differs)not statedYesYesYes
WiFi (differs)None named in the listing titleWiFi 6EWiFi 6EWiFi 7
Bluetooth (differs)not statednot stated5.35.4
Wired LAN2.5GbE2.5GbE2.5GbE2.5GbE
USB4 / Thunderboltnot statednot statednot statednot stated
Fastest USB-C port (differs)5 Gbpsnot stated5 Gbpsnot stated
SATA ports (differs)not statednot stated4not stated
Power phases (as stated by the maker) (differs)not stated8+2+26+1+18+1+1
BIOS flashback (differs)Yesnot statednot statednot stated
Debug LED / POST codenot statednot statednot statednot stated
ARGB headers (differs)Yesnot statednot statednot stated
Video outputsHDMI, DisplayPortHDMI, DisplayPortHDMI, DisplayPortHDMI, DisplayPort
Audio codec (differs)not statednot statednot statedALC897
Colournot statednot statednot statednot stated
Amazon sales rank (differs)#9,626#139,388#50,419#50,419
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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