ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX vs MSI MAG B850M Mortar WiFi Motherboard, mATX
Updated August 2026 — ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX wins on connectivity and power, MSI MAG B850M Mortar WiFi Motherboard, mATX wins on price.
The ASUS PRIME Z890-P WIFI offers superior power delivery and advanced features, while the MSI MAG B850M Mortar WiFi provides excellent value for AMD users.
Why ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX is better
Power Delivery
14+1+1+2 power stage configuration
Connectivity
Includes Thunderbolt 4 support
Build Quality
Six-layer PCB for durability
Why MSI MAG B850M Mortar WiFi Motherboard, mATX is better
Price
$219.99 is cheaper than $229.99
Compact Design
mATX form factor for smaller builds
Audio Features
Includes Audio Boost 5 for enhanced sound
Overall score
Specifications
| Spec | ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX | MSI MAG B850M Mortar WiFi Motherboard, mATX |
|---|---|---|
| Socket | LGA 1851 | AM5 |
| DDR Support | DDR5 | DDR5 |
| PCIe Version | 5.0 | 5.0 |
| M.2 Slots | 4 | 3 |
| Wi-Fi | 7 | 7 |
Dimension comparison
Overview of ASUS PRIME Z890-P WIFI
The ASUS PRIME Z890-P WIFI is priced at $229.99, positioning it as a high-end motherboard suitable for advanced AI applications. This motherboard is designed to support Intel's latest Core Ultra processors and is packed with features that cater to demanding users. It boasts a powerful 14+1+1+2 power stage configuration, ensuring stable power delivery for intensive tasks.
Equipped with DDR5 support and PCIe 5.0 technology, the ASUS motherboard offers future-proofing for gaming and professional applications. Additionally, it includes Wi-Fi 7 capabilities, enhancing connectivity for users who require high-speed internet access. With multiple M.2 slots and robust thermal management, the ASUS PRIME Z890-P WIFI is engineered for performance and reliability.
Overview of MSI MAG B850M Mortar WiFi
At a slightly lower price of $219.99, the MSI MAG B850M Mortar WiFi presents itself as a compelling option for users looking for a motherboard that supports the AMD Ryzen 9000 series processors. This motherboard features a 12 Duet Rail Power System (60A, SPS) VRM, providing ample power for high-performance tasks.
The MSI motherboard also supports DDR5 memory with overclocking capabilities, reaching speeds of 8200+ MT/s. With a PCIe 5.0 x16 slot and triple M.2 connectors, it offers flexibility for storage and graphics options. Like its ASUS counterpart, the MSI MAG B850M comes with Wi-Fi 7, ensuring fast wireless connectivity for all your gaming and streaming needs.
Design and Build Quality
In terms of design, the ASUS PRIME Z890-P WIFI sports an ATX form factor, which can accommodate a variety of cases and offer ample expansion options. Its robust construction features a six-layer PCB and durable capacitors, ensuring longevity and stability under load. The motherboard also incorporates advanced thermal solutions, including large VRM heatsinks and hybrid fan headers.
Conversely, the MSI MAG B850M Mortar WiFi, with its mATX form factor, is designed for compact builds without sacrificing performance. It features an 8-layer PCB for enhanced durability and includes a chipset heatsink and a thermal pad setup for improved cooling. Both motherboards are built to last, but the choice between ATX and mATX may influence your decision based on your case size and build preferences.
Power Delivery and Performance
The ASUS PRIME Z890-P WIFI excels in power delivery with its 14+1+1+2 power stage configuration, each rated at 80A, ensuring consistent performance even under heavy loads. This robust power solution is designed to provide stable and efficient power to the CPU, especially beneficial for users engaging in CPU-intensive tasks.
On the other hand, the MSI MAG B850M Mortar WiFi implements a 12 Duet Rail Power System (60A, SPS) VRM, which is also effective for high-performance operations. While it provides adequate power for the AMD Ryzen series, the ASUS motherboard’s superior power stage configuration may offer an edge for users pushing their systems to the limit.
Connectivity Options
Connectivity is a strong point for both motherboards. The ASUS PRIME Z890-P WIFI comes with an array of ports, including a Thunderbolt 4 USB Type-C port and a front panel USB 10Gbps Type-C port, catering to users needing fast data transfer and external device support. It also boasts onboard Wi-Fi 7 and Realtek 2.5 Gb Ethernet for high-speed internet access.
The MSI MAG B850M Mortar WiFi features similar connectivity capabilities, including full-speed Wi-Fi 7 and USB 20G Type-C ports. However, it lacks the Thunderbolt support found in the ASUS model. Both motherboards are designed to meet the connectivity demands of modern users, but ASUS offers a more versatile option for those who need Thunderbolt capabilities.
Memory and Storage Support
Memory and storage support is critical for performance, and both motherboards shine in this aspect. The ASUS PRIME Z890-P WIFI supports DDR5 memory, with multiple M.2 slots, including one designed for PCIe 5.0. This allows for faster storage options and improved overall system performance.
In comparison, the MSI MAG B850M Mortar WiFi also supports DDR5 memory and offers triple M.2 connectors, with two Gen5 slots and one Gen4 slot. While both motherboards provide excellent memory and storage options, the inclusion of PCIe 5.0 support in the ASUS potentially provides a faster and more future-proof solution.
User Experience and Features
User experience features are essential for both casual and hardcore users. The ASUS PRIME Z890-P WIFI includes several user-friendly elements, such as BIOS FlashBack for easy updates and a Q-Release for hassle-free PCIe slot management. Additionally, it features configurable RGB lighting with Aura Sync, catering to gamers looking for aesthetic customizations.
The MSI MAG B850M Mortar WiFi, while less flashy, does not skimp on user-friendly features. It includes EZ M.2 Shield Frozr II to prevent thermal throttling and an EZ M.2 Clip II for easier installation. It also offers a solid audio experience with Audio Boost 5, enhancing the overall user experience. Both motherboards cater well to user needs, but the ASUS model leans more towards customization and advanced management features.
Which should you buy?
Choosing between the ASUS PRIME Z890-P WIFI and the MSI MAG B850M Mortar WiFi ultimately depends on your specific needs and the type of processor you plan to use. The ASUS motherboard, priced at $229.99, offers superior power delivery, advanced connectivity options with Thunderbolt support, and a more robust build for users seeking high performance, especially in AI applications.
On the other hand, the MSI MAG B850M Mortar WiFi is approximately 4% cheaper at $219.99 and provides excellent support for AMD Ryzen processors, making it a great choice for gamers and users focused on AMD's ecosystem. If you prioritize compact builds and solid performance at a slightly lower price, the MSI option may be more appealing. In conclusion, consider your processor choice and desired features to make the best decision for your build.

