ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs MSI MAG X870 Tomahawk WiFi Gaming Motherboard
Updated July 2026 — MSI MAG X870 Tomahawk WiFi Gaming Motherboard leads on price and expansion.
The ASRock B450M/AC R2.0 is a budget-friendly option for basic users, while the MSI MAG X870 Tomahawk offers advanced features for gamers. Choose based on your performance needs.
Why ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA is better
Price
ASRock is significantly cheaper at $79.00.
Basic Use
Ideal for users with older AMD processors.
Simplicity
Straightforward design for functionality.
Why MSI MAG X870 Tomahawk WiFi Gaming Motherboard is better
Performance
Supports latest AMD Ryzen 9000/8000/7000 series.
Memory
Utilizes DDR5 for better efficiency.
Connectivity
Includes PCIe 5.0 and 5G LAN for enhanced speed.
Overall score
Specifications
| Spec | ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA | MSI MAG X870 Tomahawk WiFi Gaming Motherboard |
|---|---|---|
| Socket | AM4 | AM5 |
| Memory Type | DDR4 | DDR5 |
| PCIe Version | 3.0 | 5.0 |
| LAN Speed | 1Gbps | 5Gbps |
| Audio Features | Basic | Audio Boost 5 |
Dimension comparison
Overview of the ASRock B450M/AC R2.0 and MSI MAG X870 Tomahawk
The ASRock B450M/AC R2.0 is priced at $79.00, making it significantly more affordable compared to the MSI MAG X870 Tomahawk, which retails for $219.99. This price difference of about 178% reflects a distinct separation in target audiences. The ASRock motherboard caters to budget-conscious users or those with older AMD processors, while the MSI board is designed for gamers and enthusiasts seeking high-end performance with newer generation CPUs.
Performance and Compatibility
The ASRock B450M/AC R2.0 supports AMD AM4 socket Ryzen 2000, 3000, 4000 G-Series, 5000, and 5000 G-Series desktop processors. In comparison, the MSI MAG X870 Tomahawk is compatible with the more recent and powerful AMD Ryzen 9000, 8000, and 7000 series processors. This means that for users looking to utilize the latest technology, the MSI option is the clear choice, as it can handle more demanding applications and games that benefit from the advancements in newer processors.
Memory Support
When it comes to memory, the ASRock B450M/AC R2.0 supports DDR4 3200, which is suitable for most users. On the other hand, the MSI MAG X870 Tomahawk utilizes DDR5 memory. DDR5 offers higher bandwidth and improved efficiency, making it ideal for gaming and intensive tasks. This difference in memory technology is crucial for users looking to future-proof their builds, as DDR5 is set to become the standard in high-performance computing.
Expansion Slots and Connectivity
The ASRock B450M/AC R2.0 includes one PCIe 3.0 x16 and one PCIe 2.0 x16 slot, which can be limiting for users planning to add multiple GPUs or expansion cards. Conversely, the MSI MAG X870 Tomahawk offers PCIe 5.0 support, along with additional M.2 Gen5 slots, enhancing connectivity for high-speed SSDs. This feature supports future graphics cards and storage solutions that can take full advantage of the latest PCIe standards, making the MSI board a more versatile choice for gamers and tech enthusiasts.
Audio and Networking Features
In terms of audio, the ASRock B450M/AC R2.0 does not specify advanced audio features, while the MSI MAG X870 Tomahawk boasts Audio Boost 5, which isolates audio with a high-quality processor for an immersive gaming experience. Networking is also a significant differentiator; the MSI board features 5G LAN, ensuring faster and more reliable internet connections, a vital aspect for online gaming. This clearly positions the MSI motherboard as a better option for users who prioritize audio quality and connectivity.
Design and Build Quality
The design of the ASRock B450M/AC R2.0 is straightforward, intended for users who prioritize functionality over aesthetics. In contrast, the MSI MAG X870 Tomahawk incorporates a military-inspired design with an extended heatsink to ensure high-end processors function at full speed. This focus on durability and performance makes the MSI option appealing for gamers who often push their systems to the limit, reflecting a clear investment in build quality.
Price Consideration
The ASRock B450M/AC R2.0 is priced at $79.00, while the MSI MAG X870 Tomahawk is significantly higher at $219.99. This price gap of $140.99 means that the ASRock motherboard is about 64% cheaper than its competitor. For users on a strict budget or those with basic computing needs, the ASRock board is an attractive option. However, the MSI board justifies its higher price with advanced features and performance capabilities suitable for gaming and demanding applications.
Which should you buy?
Choosing between the ASRock B450M/AC R2.0 and the MSI MAG X870 Tomahawk ultimately depends on your specific needs and budget. If you are looking for an affordable motherboard for older AMD processors and basic use, the ASRock B450M/AC R2.0 offers exceptional value at just $79.00. However, if you are an avid gamer or require the latest technology with advanced features, the MSI MAG X870 Tomahawk, priced at $219.99, provides superior compatibility, performance, and connectivity.

