Which is better for a new gaming build?

The GIGABYTE B650M D3HP AX. AM5 takes current Ryzen CPUs and DDR5, while the MSI board is limited to the older AM4 platform.

Can I reuse my old Ryzen CPU and DDR4 RAM?

Only on the MSI MAG B550M Mortar WIFI. The GIGABYTE uses AM5 and DDR5, so AM4 chips and DDR4 sticks will not fit.

Is the GIGABYTE worth the extra money?

At $135.98 at Walmart as of November 7, 2026, yes for a new build. It was $102.00 on November 3, so the gap to the MSI is small for a much newer platform.

Which has better networking?

The GIGABYTE. It has Wi-Fi 6E and 2.5GbE LAN. The MSI lists Ethernet and Wi-Fi but no 2.5GbE or Wi-Fi 6E.

Do either support ECC memory?

The MSI MAG B550M Mortar WIFI does. The GIGABYTE B650M D3HP AX is listed as non-ECC only.

Which has more M.2 storage?

The GIGABYTE lists two PCIe 4.0 M.2 slots, one accepting 22110 drives. The MSI lists PCIe 4.0 M.2 support without a slot count.

MSI MAG B550M Mortar WiFi vs GIGABYTE B650M D3HP AX

Buy the GIGABYTE B650M D3HP AX if you are building a new Ryzen 7000 or 9000 system. Its AM5 socket, DDR5 support and Wi-Fi 6E make it the forward-looking choice. The MSI MAG B550M Mortar WIFI only makes sense if you already own an AM4 CPU and DDR4 memory. The GIGABYTE is $135.98 at Walmart as of November 7, 2026, and it dropped to $102.00 on November 3, so watch for another dip.

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