MSI MAG B850M Mortar WiFi Motherboard, mATX vs MSI MAG X870 Tomahawk WiFi Gaming Motherboard
Updated August 2026 — MSI MAG B850M Mortar WiFi Motherboard, mATX wins on memory, MSI MAG X870 Tomahawk WiFi Gaming Motherboard wins on size and connectivity.
The MSI MAG B850M Mortar WiFi offers excellent performance in a compact design, while the X870 Tomahawk excels in connectivity and expansion options. Choose based on your specific needs.
Why MSI MAG B850M Mortar WiFi Motherboard, mATX is better
Compact Size
Ideal for smaller builds
Memory Speed
Supports DDR5 up to 8200 MT/s
Price
Same price as X870 Tomahawk
Why MSI MAG X870 Tomahawk WiFi Gaming Motherboard is better
USB Speed
Features USB 40G for faster data transfer
Cooling Design
Extended heatsink for better thermal management
Expansion Options
More room for additional components
Overall score
Specifications
| Spec | MSI MAG B850M Mortar WiFi Motherboard, mATX | MSI MAG X870 Tomahawk WiFi Gaming Motherboard |
|---|---|---|
| Form Factor | mATX | ATX |
| Wi-Fi | 7 | 7 |
| Bluetooth | 5.4 | 5.4 |
| M.2 Slots | 3 | unknown |
| Audio Boost | 5 | 5 |
| USB Ports | 20G | 40G |
Dimension comparison
Overview of the MSI MAG B850M Mortar WiFi Motherboard
The MSI MAG B850M Mortar WiFi Motherboard is designed for gamers seeking a solid foundation for AMD Ryzen 9000, 8000, and 7000 processors. Priced at $219.99, this mATX motherboard features a robust 12 Duet Rail Power System with 60A SPS VRM, ensuring it supports high-performance CPUs effectively. The board also boasts advanced connectivity options, including Wi-Fi 7 and Bluetooth 5.4, which enhance its usability for modern gaming setups.
Overview of the MSI MAG X870 Tomahawk WiFi Gaming Motherboard
Similarly priced at $219.99, the MSI MAG X870 Tomahawk WiFi Gaming Motherboard caters to users looking for a feature-rich option for AMD Ryzen 9000, 8000, and 7000 series processors. This ATX motherboard stands out with its lightning-fast USB 40G connectivity, which provides an impressive data transmission speed of 40Gbps. Its extended heatsink design is tailored to maintain high performance under load, making it a strong contender for serious gamers.
Build Quality and Design
The build quality of the MSI MAG B850M Mortar WiFi is robust, featuring durable 8-layer PCBs with 2oz of thickened copper, which is essential for stability during intense gaming sessions. Its mATX form factor allows for efficient space utilization in smaller cases. On the other hand, the MSI MAG X870 Tomahawk's military-inspired design emphasizes sturdiness, appealing to gamers who appreciate a rugged aesthetic. The ATX size may offer more expansion options, but its additional space could be less ideal for compact builds.
Performance Features
When it comes to performance, the MSI MAG B850M Mortar WiFi leverages DDR5 memory support with overclocking capabilities reaching up to 8200 MT/s. This is particularly beneficial for gamers looking for high-speed performance. The X870 Tomahawk also supports DDR5 but does not specify a maximum overclocking speed in the available data. However, its extended PWM heatsink ensures that high-end processors can run at full speeds without thermal throttling, which is crucial for maintaining performance during demanding tasks.
Connectivity Options
Connectivity is a highlight for both motherboards. The MSI MAG B850M Mortar WiFi includes full-speed Wi-Fi 7 and Bluetooth 5.4, alongside a Realtek 5G LAN for high-speed networking. In contrast, the X870 Tomahawk also offers Wi-Fi 7 and Bluetooth 5.4 but adds the advantage of a USB 4 port capable of 40Gbps transmission. This provides faster data transfer rates for peripherals and storage devices, which can be particularly advantageous for gamers utilizing external drives.
Expansion and Storage Capabilities
The MSI MAG B850M Mortar WiFi provides three M.2 connectors, with two supporting Gen5 speeds of 128Gbps and one Gen4 slot, allowing for versatile storage configurations. This can enhance loading times and overall system responsiveness. Meanwhile, the MSI MAG X870 Tomahawk also supports M.2 Gen5 storage, but the specific number of slots is not detailed in the data provided. The enhanced circuit design in the X870 Tomahawk could imply better overall stability when multiple expansion cards are in use.
Gaming and Audio Experience
For gaming, the MSI MAG B850M Mortar WiFi is equipped with Audio Boost 5, which supports 7.1 USB High Performance Audio, promising an immersive gaming experience. The X870 Tomahawk also includes Audio Boost 5, emphasizing isolated audio processing for improved sound quality. Both motherboards are designed with the gamer in mind, but the specific audio processing features may appeal differently depending on user preferences.
Which should you buy?
Choosing between the MSI MAG B850M Mortar WiFi and the MSI MAG X870 Tomahawk WiFi ultimately depends on your specific gaming needs and preferences. If you prefer a compact motherboard with robust performance features and excellent memory support, the B850M Mortar might be the better option for you. However, if you value faster data transfer capabilities and a more expansive design for future upgrades, the X870 Tomahawk is an excellent choice. Both motherboards are competitively priced at $219.99, making either a solid investment for gamers looking to build a high-performance PC.

