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Side-by-side comparison of 2 motherboards
SpecificationASUS PRIME B850-PLUS-CSMMSI B850 Gaming Plus WIFI6E Motherboard
Price (new) (differs)£161.99as of 20 Sep, 02:43£167.99as of 20 Sep, 02:43
Amazon Warehouse offernot statednot stated
RRP (differs)£161.99not stated
Price badgenot statednot stated
First available on Amazon (differs)Mar 2025 (1 yr 6 mo old)Nov 2025 (9 mo old)
Brand (differs)ASUSMSI
SocketAM5AM5
ChipsetB850B850
Form factorATXATX
Memory typeDDR5DDR5
RAM slots (differs)not stated4
Maximum RAMnot statednot stated
Fastest RAM speed stated (differs)not stated8,200 MT/s
M.2 slots (differs)32
Newest PCIe generation statedPCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotnot statednot stated
PCIe 5.0 M.2 slot (differs)not statedYes
WiFiWiFi 6EWiFi 6E
Bluetooth (differs)not stated5.3
Wired LAN2.5GbE2.5GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C port10 Gbps10 Gbps
SATA portsnot statednot stated
Power phases (as stated by the maker) (differs)8+2+1not stated
BIOS flashbacknot statednot stated
Debug LED / POST codenot statednot stated
ARGB headers (differs)Yesnot stated
Video outputs (differs)HDMI, DisplayPortnot stated
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#14,478#192,735
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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