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Side-by-side comparison of 2 motherboards
SpecificationAsustek computer PRIME B450M-K II ATX +2GLN+U3.2+M2 SATA6+4XDDR9ASRock B450 Pro 4 R2.0
Price (new) (differs)£88.37as of 20 Sep, 02:41£84.99as of 20 Sep, 02:41
Amazon Warehouse offernot statednot stated
RRP (differs)£72.99not stated
Price badgenot statednot stated
First available on Amazon (differs)Nov 2020 (5 yr 10 mo old)Jan 2024 (2 yr 8 mo old)
Brand (differs)ASUSASRock
SocketAM4AM4
ChipsetB450B450
Form factor (differs)Micro-ATXnot stated
Memory typeDDR4DDR4
RAM slots (differs)not stated4
Maximum RAM (differs)not stated64 GB
Fastest RAM speed stated (differs)not stated3,200 MT/s
M.2 slotsnot statednot stated
Newest PCIe generation statednot statednot stated
PCIe 5.0 graphics slotnot statednot stated
PCIe 5.0 M.2 slotnot statednot stated
WiFiNone named in the listing titleNone named in the listing title
Bluetoothnot statednot stated
Wired LAN (differs)1GbEnot stated
USB4 / Thunderboltnot statednot stated
Fastest USB-C portnot statednot stated
SATA portsnot statednot stated
Power phases (as stated by the maker)not statednot stated
BIOS flashbacknot statednot stated
Debug LED / POST codenot statednot stated
ARGB headersnot statednot stated
Video outputsnot statednot stated
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#1,413#27,937
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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