MSI MAG B850M Mortar WiFi Motherboard, mATX vs MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX
Updated August 2026 — MSI MAG B850M Mortar WiFi Motherboard, mATX wins on size, MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX wins on power and price.
The MSI MAG B850M Mortar WiFi offers great value for budget-conscious gamers, while the MSI MAG X870E Tomahawk MAX WiFi PZ excels in performance and features for enthusiasts.
Why MSI MAG B850M Mortar WiFi Motherboard, mATX is better
Price
B850M is $100 cheaper
Size
B850M's mATX form factor is more compact
Value
B850M offers solid performance for budget builds
Why MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX is better
Power
X870E has a stronger 14 Duet Rail Power Phase
Cooling
X870E includes extra choke thermal pads
Connectivity
X870E features USB4 Type-C 40Gbps
Overall score
Specifications
| Spec | MSI MAG B850M Mortar WiFi Motherboard, mATX | MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX |
|---|---|---|
| DDR5 Speed | 8200+ MT/s | 8400+ MT/s |
| M.2 Slots | 3 | 4 |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| LAN | 5Gbps | 5Gbps |
| Form Factor | mATX | ATX |
Dimension comparison
Overview of the MSI MAG B850M Mortar WiFi and MSI MAG X870E Tomahawk MAX WiFi PZ
The MSI MAG B850M Mortar WiFi is priced at $219.99, making it about 31% cheaper than the MSI MAG X870E Tomahawk MAX WiFi PZ, which retails for $319.99. Both motherboards support the latest AMD Ryzen 9000, 8000, and 7000 processors and are built with high-performance features tailored for gamers and power users. However, they cater to slightly different user needs based on their specifications and features.
Design and Build Quality
Both motherboards are designed for durability and high performance. The MSI MAG B850M Mortar WiFi employs a 12 Duet Rail Power System (60A, SPS) VRM, while the X870E Tomahawk MAX features a more robust 14 Duet Rail Power Phase with 80A SPS, indicating a potentially better power delivery for overclocking and stability. The B850M's mATX form factor is compact, suitable for smaller cases, whereas the X870E's ATX design allows for more expansion options. Both models boast a solid build with 2oz thickened copper layers and PCIe Steel Armor II to protect the primary graphics card slot.
Performance Capabilities
In terms of performance, the MSI MAG B850M Mortar WiFi supports DDR5 memory speeds of up to 8200+ MT/s (OC), while the X870E Tomahawk MAX provides slightly lower DDR5 memory speeds of 8400+ MT/s (OC). Both motherboards feature a PCIe 5.0 x16 slot that allows for high-speed graphics card integration. The greater power phase design in the X870E suggests it may handle extreme performance better than the B850M, particularly for users engaging in high-intensity gaming or content creation tasks.
Cooling Solutions
Cooling is critical for sustaining performance under load, and both motherboards implement advanced cooling features. The B850M is equipped with a comprehensive thermal solution, including MOSFET thermal pads and an Extended Heatsink, ensuring efficient heat dissipation. The X870E Tomahawk MAX also includes similar cooling technologies but adds extra choke thermal pads and a more extensive cooling setup, which might provide an edge in prolonged heavy usage scenarios. This could be particularly beneficial for gamers who push their systems to the limit.
Connectivity Options
Connectivity is a strong point for both motherboards. The MSI MAG B850M Mortar WiFi includes Wi-Fi 7 and Bluetooth 5.4, along with 5Gbps LAN, which ensures fast and reliable networking. In comparison, the X870E Tomahawk MAX not only features Wi-Fi 7 and Bluetooth 5.4 but also introduces a USB4 Type-C port capable of 40Gbps, offering superior data transfer rates and compatibility with newer devices. For users who require extensive connectivity options, the X870E's additional ports may present a significant advantage.
Storage Capabilities
Storage options vary slightly between the two motherboards. The MSI MAG B850M Mortar WiFi is equipped with three M.2 slots: two M.2 Gen5 x4 128Gbps slots and one M.2 Gen4 x2 32Gbps slot. In contrast, the X870E Tomahawk MAX provides four M.2 connectors, which include two Gen5 x4 128Gbps slots and two Gen4 x4 64Gbps slots. This increased flexibility allows for more storage solutions on the X870E, catering to users with larger libraries of games or data-intensive applications.
Target Audience
The MSI MAG B850M Mortar WiFi is ideal for gamers who are looking for a solid foundation at a lower price point, making it an attractive option for budget-conscious builds. On the other hand, the MSI MAG X870E Tomahawk MAX WiFi PZ targets enthusiasts and professionals needing enhanced performance and more advanced features, justifying its higher price tag. Users seeking the best in terms of power delivery, cooling, and connectivity would likely lean towards the X870E, while those prioritizing value may find the B850M more appealing.
Which should you buy?
In conclusion, the choice between the MSI MAG B850M Mortar WiFi and the MSI MAG X870E Tomahawk MAX WiFi PZ largely depends on your specific needs and budget. If you're looking for a more budget-friendly option that still delivers excellent performance, the B850M is a fantastic choice at $219.99. However, for those who require the latest features, superior power delivery, and extensive connectivity options, the X870E at $319.99 is worth the investment. Ultimately, both motherboards cater to different segments of the market, ensuring that users can find a product that fits their requirements.

