Compare 6 products

	ASRock B450M PRO4	ASRock B450M Pro4-F	Asus Prime B450-PLUS	MSI B450-A Pro - ATX	MSI B450-A Pro MAX	MSI B450M-A Pro MAX

Memory
Supported memory bus clock	2400 MHz 2133 MHz 2667 MHz 2933 MHz 3200 MHz	2400 MHz 2133 MHz 2667 MHz 2933 MHz 3200 MHz	2400 MHz 2133 MHz 2666 MHz 2800 MHz 3000 MHz 3200 MHz	2400 MHz 1866 MHz 2133 MHz 2667 MHz 2800 MHz 2933 MHz 3000 MHz 2667 MHz 3200 MHz 3466 MHz 3066 MHz	2400 MHz 1866 MHz 2133 MHz 2667 MHz 2800 MHz 2933 MHz 3000 MHz 2667 MHz 3200 MHz 3466 MHz 3733 MHz 3866 MHz 4000 MHz 4133 MHz 3066 MHz	2400 MHz 1866 MHz 2133 MHz 2667 MHz 2800 MHz 2933 MHz 3000 MHz 2667 MHz 3200 MHz 3466 MHz 3733 MHz 3866 MHz 4000 MHz 4133 MHz 3066 MHz
RAM technology	DDR4	DDR4	DDR4	DDR4	DDR4	DDR4
Memory slots type	DIMM	N/A	N/A	DIMM	DIMM	DIMM
Maximum RAM size	64 GB	64 GB	64 GB	64 GB	64 GB	32 GB
Number of memory slots	4	N/A	N/A	4	4	2
Memory channels	Dual	N/A	N/A	Dual	N/A	Dual
ECC	N/A	N/A	N/A	yes	N/A	yes
Non-ECC	N/A	N/A	N/A	yes	N/A	yes
Unbuffered memory	N/A	N/A	N/A	N/A	N/A	yes

Audio properties
Audio codec	Realtek ALC892	Realtek ALC892	Realtek ALC887-VD2	Realtek ALC892	Realtek ALC892	Realtek ALC892
Audio output channels	7.1	N/A	N/A	7.1	7.1	7.1

Technical details
Compatible processor series	AMD Ryzen	N/A	N/A	AMD Ryzen	AMD Ryzen	AMD A AMD Athlon X4 AMD Ryzen
Maximum number of processors	1	1	1	1	1	1
Maximum number of SMP processors	N/A	N/A	N/A	1	N/A	1