Compare 2 motherboards

Side-by-side comparison of 2 motherboards

Specification	B850M Challenger AM5 mATX HDMI/DP	B850M Challenger WiFi AM5 mATX HDMI/DP
Price (new) (differs)	£145.62as of 5 Nov, 18:22	£148.66as of 5 Nov, 18:22
Amazon Warehouse offer	not stated	not stated
RRP (differs)	not stated	£311.99
Price badge	not stated	not stated
First available on Amazon	Feb 2026 (8 mo old)	Feb 2026 (8 mo old)
Brand	ASRock	ASRock
Socket	AM5	AM5
Chipset	B850	B850
Form factor	Micro-ATX	Micro-ATX
Memory type	DDR5	DDR5
RAM slots	4	4
Maximum RAM	not stated	not stated
Fastest RAM speed stated	8,000 MT/s	8,000 MT/s
M.2 slots	not stated	not stated
Newest PCIe generation stated	PCIe 5.0	PCIe 5.0
PCIe 5.0 graphics slot	Yes	Yes
PCIe 5.0 M.2 slot	Yes	Yes
WiFi (differs)	None named in the listing title	WiFi 7
Bluetooth (differs)	not stated	5.4
Wired LAN	2.5GbE	2.5GbE
USB4 / Thunderbolt	not stated	not stated
Fastest USB-C port (differs)	5 Gbps	not stated
SATA ports (differs)	4	not stated
Power phases (as stated by the maker)	8+1+1	8+1+1
BIOS flashback	not stated	not stated
Debug LED / POST code	not stated	not stated
ARGB headers	not stated	not stated
Video outputs	HDMI, DisplayPort	HDMI, DisplayPort
Audio codec	ALC897	ALC897
Colour	not stated	not stated
Amazon sales rank	#50,419	#50,419
Buy	Check price on Amazon	Check 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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