Compare 5 products

	ASRock B450M Steel Legend	ASRock Fatal1ty B450 Gaming K4	Gigabyte Z370 AORUS Ultra Gaming WIFI	MSI B450-A Pro - ATX	Supermicro X9DRD-7LN4F

Memory
Supported memory bus clock	2400 MHz 2133 MHz 2667 MHz 2933 MHz 3200 MHz 3466 MHz 3533 MHz	2400 MHz 2133 MHz 2667 MHz 2933 MHz 3200 MHz	2400 MHz 2133 MHz 2666 MHz 2800 MHz 3000 MHz 3200 MHz 3300 MHz 3400 MHz 3333 MHz 3466 MHz 3733 MHz 3600 MHz 3800 MHz 3666 MHz 3866 MHz 4000 MHz	2400 MHz 1866 MHz 2133 MHz 2667 MHz 2800 MHz 2933 MHz 3000 MHz 2667 MHz 3200 MHz 3466 MHz 3066 MHz	1600 MHz 1333 MHz 1066 MHz 800 MHz
RAM technology	DDR4	DDR4	DDR4	DDR4	DDR3
Maximum RAM size	64 GB	64 GB	64 GB	64 GB	512 GB
Memory slots type	N/A	DIMM	DIMM	DIMM	N/A
Number of memory slots	N/A	4	4	4	N/A
Unbuffered memory	N/A	N/A	yes	N/A	N/A
Memory channels	N/A	N/A	Dual	Dual	N/A
ECC	N/A	N/A	yes	yes	N/A
Non-ECC	N/A	N/A	yes	yes	N/A
Extreme Memory Profile (XMP)	N/A	N/A	yes	N/A	N/A

Technical details
Maximum number of processors	1	1	1	1	2
Compatible processor series	N/A	AMD Ryzen	Intel Core i3 Intel Core i5 Intel Core i7	AMD Ryzen	N/A
Maximum number of SMP processors	N/A	N/A	1	1	N/A
Data bus transfer rate	N/A	N/A	N/A	N/A	8 GT/s

BIOS
BIOS type	AMI	UEFI AMI	UEFI AMI	UEFI AMI	AMI
BIOS features	Multilingual BIOS JumperFree SMBIOS 2.3 support UEFI BIOS ACPI 5.1 support	Multilingual BIOS JumperFree SMBIOS 2.3 support UEFI BIOS ACPI 5.1 support	WfM 2.0 support UEFI BIOS SMBIOS 2.7 support DMI 2.7 support ACPI 5.0 support Dual BIOS	BIOS FlashBack+ MSI ClickBIOS 5	APM 1.2 support ACPI 1.0 support DMI 2.3 support ACPI 2.0 support SMBIOS 2.3 support IPMI support ACPI 3.0 support UEFI BIOS ACPI 4.0 support
BIOS memory size	N/A	128.0 mB	256.0 mB	N/A	N/A
System Management BIOS (SMBIOS) version	N/A	2.3	2.7	N/A	N/A
ACPI version	N/A	5.1	5.0	N/A	N/A