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Side-by-side comparison of 2 motherboards

Specification	ASRock B450M-HDV R4.0 Socket AM4/ AMD Promontory B450/ DDR4…	ASRock B450 Pro 4 R2.0
Price (new) (differs)	£80.14as of 5 Nov, 18:20	not stated
RRP (differs)	£60.01	not stated
First available on Amazon (differs)	Feb 2019 (7 yr 8 mo old)	Jan 2024 (2 yr 10 mo old)
Form factor (differs)	Micro-ATX	not stated
RAM slots (differs)	not stated	4
Maximum RAM (differs)	not stated	64 GB
Fastest RAM speed stated (differs)	not stated	3,200 MT/s
Amazon sales rank (differs)	#50,825	#63,697
Buy	Check price on Amazon	See it 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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