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SpecificationB850M Challenger WiFi AM5 mATX HDMI/DPGigabyte B850 GAMING WIFI6 Motherboard
Price (new) (differs)£136.79as of 20 Sep, 06:22£136.99as of 20 Sep, 06:22
Amazon Warehouse offernot statednot stated
RRP (differs)£311.99£179.99
Price badgenot statednot stated
First available on Amazon (differs)Feb 2026 (6 mo old)Jan 2025 (1 yr 8 mo old)
Brand (differs)ASRockGigabyte
SocketAM5AM5
ChipsetB850B850
Form factor (differs)Micro-ATXATX
Memory typeDDR5DDR5
RAM slots44
Maximum RAMnot statednot stated
Fastest RAM speed stated (differs)8,000 MT/s8,200 MT/s
M.2 slots (differs)not stated2
Newest PCIe generation statedPCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotYesYes
PCIe 5.0 M.2 slotYesYes
WiFi (differs)WiFi 7WiFi 6
Bluetooth (differs)5.4not stated
Wired LAN (differs)2.5GbE1GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C portnot statednot stated
SATA portsnot statednot stated
Power phases (as stated by the maker) (differs)8+1+16+2+2
BIOS flashback (differs)not statedYes
Debug LED / POST codenot statednot stated
ARGB headersnot statednot stated
Video outputs (differs)HDMI, DisplayPortnot stated
Audio codec (differs)ALC897not stated
Colournot statednot stated
Amazon sales rank (differs)#36,335#1,569
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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