Motherboards under $400

3 motherboards under $400 from ASUS, Supermicro, GIGABYTE and more. Prices run $309 to $390.

ASUSSpec score 8.5

LGA1700, ATX, DDR5, 2.5G

+Z790 chipset supports Intel overclocking

+DDR5 memory support for faster system memory

+2.5Gb LAN for faster wired networking

−ATX form factor needs a larger case

$308.90-12%Was: ~~$349.99~~

as of 11/04/2026 12:09 PST - Details

MSISpec score 8.5

AM5, ATX, DDR5, 2.5G

+AMD X670E chipset for Ryzen 7000 to 9000 processors

+AM5 socket with DDR5 memory support

+PCIe 5.0 support for fast expansion cards

$390.00

as of 11/04/2026 00:18 PST - Details

ASUSSpec score 8.2

AM5, ITX, DDR5, 2 M.2 slots

+Mini-ITX form factor fits compact builds

+Built-in Wi-Fi 6E for faster wireless

+2.5G LAN for faster wired networking

−Only two M.2 slots for storage expansion

−Limited to the AM5 socket

$317.12

as of 11/04/2026 12:10 PST - Details

Compare specs

Socket	Form factor	Memory type	Chipset	Spec score	Price
LGA1700	ATX	DDR5	Intel Z790	8.5	$308.90 as of 11/04/2026 12:09 PST - Details
AM5	ATX	DDR5	AMD X670E	8.5	$390.00 as of 11/04/2026 00:18 PST - Details
AM5	ITX	DDR5		8.2	$317.12 as of 11/04/2026 12:10 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.