Both the Asus B850 Max Gaming Wi-Fi W and the MSI B850M Gaming Plus Wi-Fi share the same AM5 socket and B850 chipset foundation, meaning they target the same generation of AMD processors and offer identical baseline platform capabilities. They also match on quality-of-life features: both include dual BIOS, easy BIOS reset, RGB lighting, HDMI 2.1 output, and a 3-year warranty, so neither board has an obvious edge in build confidence or usability conveniences.
The most meaningful differentiator in this group is the form factor. The Asus is a full ATX board (305 × 244 mm), while the MSI is Micro-ATX (243.8 × 243.8 mm). This is a fundamental build decision: ATX opens up more PCIe slots, better airflow spacing, and compatibility with a wider range of mid-tower and full-tower cases, whereas Micro-ATX is the better fit for compact builds where footprint matters. Neither is inherently superior — it depends entirely on the user's chassis and expansion plans.
On wireless connectivity, the MSI holds a real-world edge: it supports Wi-Fi 7 (802.11be), while the Asus tops out at Wi-Fi 6E. Wi-Fi 7 delivers significantly higher theoretical throughput and lower latency, particularly useful as routers supporting the standard become more common. The MSI also carries a marginally newer Bluetooth 5.4 versus the Asus's Bluetooth 5.3, a minor but forward-looking improvement. Overall, the MSI wins this group on wireless specs; the Asus wins if a full-size ATX layout is a priority for the build.