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Compare 4 motherboards

Side-by-side comparison of 4 motherboards
SpecificationASRock B850M Rock WiFi Socket AM5 Micro-ATX MotherboardB850M Challenger AM5 mATX HDMI/DPB850M Challenger WiFi AM5 mATX HDMI/DPMSI B850M GAMING PLUS WIFI6E Motherboard
Price (new) (differs)£144.04as of 5 Nov, 18:22£145.62as of 5 Nov, 18:22£148.66as of 5 Nov, 18:22£139.99as of 5 Nov, 18:21
Amazon Warehouse offer (differs)not statednot statednot stated£106.64 (Used - Like New)as of 5 Nov, 18:21
RRP (differs)£270.99not stated£311.99£149.99
Price badgenot statednot statednot statednot stated
First available on Amazon (differs)Jan 2026 (9 mo old)Feb 2026 (8 mo old)Feb 2026 (8 mo old)Jun 2025 (1 yr 4 mo old)
Brand (differs)ASRockASRockASRockMSI
SocketAM5AM5AM5AM5
ChipsetB850B850B850B850
Form factorMicro-ATXMicro-ATXMicro-ATXMicro-ATX
Memory typeDDR5DDR5DDR5DDR5
RAM slots (differs)2444
Maximum RAMnot statednot statednot statednot stated
Fastest RAM speed stated (differs)8,200 MT/s8,000 MT/s8,000 MT/s8,200 MT/s
M.2 slots (differs)1not statednot stated2
Newest PCIe generation statedPCIe 5.0PCIe 5.0PCIe 5.0PCIe 5.0
PCIe 5.0 graphics slot (differs)YesYesYesnot stated
PCIe 5.0 M.2 slotYesYesYesYes
WiFi (differs)WiFi 6ENone named in the listing titleWiFi 7WiFi 6E
Bluetooth (differs)5.3not stated5.45.3
Wired LAN2.5GbE2.5GbE2.5GbE2.5GbE
USB4 / Thunderboltnot statednot statednot statednot stated
Fastest USB-C port (differs)5 Gbps5 Gbpsnot stated10 Gbps
SATA ports (differs)44not statednot stated
Power phases (as stated by the maker) (differs)6+1+18+1+18+1+1not stated
BIOS flashbacknot statednot statednot statednot stated
Debug LED / POST codenot statednot statednot statednot stated
ARGB headersnot statednot statednot statednot stated
Video outputs (differs)HDMI, DisplayPortHDMI, DisplayPortHDMI, DisplayPortnot stated
Audio codec (differs)not statedALC897ALC897not stated
Colournot statednot statednot statednot stated
Amazon sales rank (differs)#50,419#50,419#50,419#1,466
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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