Compare 4 motherboards

Side-by-side comparison of 4 motherboards
Specification	B450M STEEL LEGEND Motherboard B450 AM4 DDR4 3200+(OC) 64GB support…	Asro B450M PRO4 R2.0 B450	ASUS TUF GAMING B450M-PLUS II	Asustek computer PRIME B450M-K II ATX +2GLN+U3.2+M2 SATA6+4XDDR9
Price (new) (differs)	£201.39as of 22 Sep, 18:23	£189.17as of 22 Sep, 18:23	£144.77as of 22 Sep, 18:21	£88.16as of 22 Sep, 18:21
Amazon Warehouse offer	not stated	not stated	not stated	not stated
RRP (differs)	£201.39	not stated	£101.26	£72.99
Price badge (differs)	not stated	not stated	30-day low	not stated
First available on Amazon (differs)	Dec 2025 (9 mo old)	Jan 2024 (2 yr 8 mo old)	Jan 2022 (4 yr 8 mo old)	Nov 2020 (5 yr 10 mo old)
Brand (differs)	WUKUBO	ASRock	ASUS	ASUS
Socket	AM4	AM4	AM4	AM4
Chipset	B450	B450	B450	B450
Form factor	Micro-ATX	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4	DDR4
RAM slots (differs)	not stated	not stated	4	not stated
Maximum RAM	not stated	not stated	not stated	not stated
Fastest RAM speed stated (differs)	3,200 MT/s	not stated	not stated	not stated
M.2 slots	not stated	not stated	not stated	not stated
Newest PCIe generation stated (differs)	not stated	PCIe 3.0	not stated	not stated
PCIe 5.0 graphics slot	not stated	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated	not stated	not stated
WiFi	None named in the listing title	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	not stated
Wired LAN (differs)	not stated	not stated	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated	not stated
Fastest USB-C port	not stated	not stated	not stated	not stated
SATA ports	not stated	not stated	not stated	not stated
Power phases (as stated by the maker)	not stated	not stated	not stated	not stated
BIOS flashback	not stated	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated	not stated
ARGB headers (differs)	not stated	not stated	Yes	not stated
Video outputs (differs)	not stated	not stated	HDMI	not stated
Audio codec	not stated	not stated	not stated	not stated
Colour	not stated	not stated	not stated	not stated
Amazon sales rank (differs)	not stated	#83,893	#14,754	#1,574
Buy	Check price on Amazon	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.

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