Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS Prime B650M-A-CSM Micro-ATX Commercial Motherboard	ASRock Rack Server Motherboard B650D4U3-2L2Q/BCM Micro-ATX AMD EPYC…	ASROCK B650D4U Motherboard AMD B650 Express Socket AM5 micro ATX
Price (new) (differs)	£353.58as of 5 Nov, 18:23	£708.45as of 5 Nov, 18:20	£385.18 (currently unavailable)as of 5 Nov, 18:20
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	not stated	£461.84
Price badge	not stated	not stated	not stated
First available on Amazon (differs)	Dec 2022 (3 yr 10 mo old)	Nov 2024 (1 yr 11 mo old)	Jan 2024 (2 yr 10 mo old)
Brand (differs)	ASUS	ASRock Rack	ASRock
Socket	AM5	AM5	AM5
Chipset	B650	B650	B650
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR5	DDR5	DDR5
RAM slots (differs)	not stated	4	not stated
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated	not stated	not stated	not stated
M.2 slots	not stated	not stated	not stated
Newest PCIe generation stated (differs)	PCIe 5.0	PCIe 5.0	not stated
PCIe 5.0 graphics slot (differs)	not stated	Yes	not stated
PCIe 5.0 M.2 slot (differs)	Yes	not stated	not stated
WiFi	None named in the listing title	None named in the listing title	None named in the listing title
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	2.5GbE	not stated	not stated
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	5 Gbps	not stated	not stated
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker)	not stated	not stated	not stated
BIOS flashback	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers (differs)	Yes	not stated	not stated
Video outputs	not stated	not stated	not stated
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#390,861	#261,221	#164,116
Buy	Check price on Amazon	Check price on Amazon	Check 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.

Find another board to compare