Gigabyte A520I AC vs MSI MAG B850M Mortar WiFi Motherboard, mATX
Updated August 2026 — MSI MAG B850M Mortar WiFi Motherboard, mATX leads on connectivity and features.
The MSI MAG B850M Mortar WiFi offers superior performance and features compared to the Gigabyte A520I AC. For serious gamers and power users, the B850M is the better choice.
Why Gigabyte A520I AC is better
Price
Gigabyte A520I AC is significantly cheaper.
Size
Mini-ITX form factor is more compact.
Basic Use
Sufficient for casual gaming and basic tasks.
Why MSI MAG B850M Mortar WiFi Motherboard, mATX is better
Performance
Supports AMD Ryzen 9000 series processors.
Memory
Supports DDR5 memory with high speeds.
Connectivity
Includes Wi-Fi 7 and advanced LAN options.
Overall score
Specifications
| Spec | Gigabyte A520I AC | MSI MAG B850M Mortar WiFi Motherboard, mATX |
|---|---|---|
| Processor Support | 3rd Gen AMD Ryzen | AMD Ryzen 9000/8000/7000 |
| Memory Type | DDR4 | DDR5 |
| PCIe Version | 3.0 | 5.0 |
| M.2 Slots | 1 | 3 |
| Wi-Fi | Intel Dual Band AC | Wi-Fi 7 |
Dimension comparison
Overview of the Gigabyte A520I AC and MSI MAG B850M Mortar WiFi
The Gigabyte A520I AC is priced at $99.99, making it significantly more budget-friendly than the MSI MAG B850M Mortar WiFi, which retails for $219.99. This price difference of about 120% reflects the varying target audiences and features each motherboard offers. While the A520I AC is designed for users looking for a compact, entry-level solution, the MAG B850M Mortar caters to gamers and power users with advanced specifications.
Performance Capabilities
In terms of performance, the MSI MAG B850M Mortar WiFi supports the latest AMD Ryzen 9000 series processors and is built with a 12 Duet Rail Power System that provides 60A SPS VRM. This setup allows it to handle high-performance tasks, gaming, and overclocking with ease. On the other hand, the Gigabyte A520I AC is compatible with 3rd Gen AMD Ryzen processors, which limits its performance potential compared to the MSI option. The B850M's support for PCIe 5.0 x16 and DDR5 memory also positions it as a superior choice for future-proofing.
Memory and Storage Options
The MSI MAG B850M Mortar WiFi stands out with its support for DDR5 memory, enabling high speeds of up to 8200 MT/s when overclocked. This is a considerable advantage over the Gigabyte A520I AC, which only supports DDR4 memory with dual-channel configuration. Additionally, the B850M features triple M.2 connectors, including M.2 Gen5 slots, providing a broader range of high-speed storage options. In contrast, the A520I AC offers a single M.2 PCIe 3.0 x4 slot, which may limit performance for more demanding applications.
Connectivity Options
When it comes to connectivity, the MSI MAG B850M Mortar WiFi includes advanced features such as Wi-Fi 7 and 5Gbps LAN, ensuring high-speed internet connectivity for gamers and streamers. The presence of USB 20G Type-C ports enhances its versatility for modern peripherals. In comparison, the Gigabyte A520I AC provides Intel Dual Band AC WiFi and a standard 1GbE LAN. While adequate for basic use, it may not meet the demands of users who require higher data transfer speeds.
Cooling Solutions
Cooling is a critical aspect for performance enthusiasts. The MSI MAG B850M Mortar WiFi is equipped with premium cooling features, including a chipset heatsink and FROZR GUARD technology, which utilizes thermal pads to maintain optimal temperatures during intensive tasks. The extended heatsink and EZ M.2 Shield Frozr II help prevent thermal throttling. The Gigabyte A520I AC, while featuring an optimized VRM heatsink, lacks the comprehensive cooling solutions found in the B850M, making it less ideal for sustained high-performance scenarios.
Form Factor and Design
The Gigabyte A520I AC adopts a Mini-ITX form factor, making it suitable for compact builds where space is at a premium. This smaller size can be appealing for those looking to create portable or small-footprint systems. Conversely, the MSI MAG B850M Mortar WiFi comes in a mATX form factor, allowing for more expandability and additional features. Users seeking a balance between space and performance may find the mATX design of the MSI motherboard more suitable for their needs.
Target Audience
The target audiences for these motherboards are markedly different. The Gigabyte A520I AC is well-suited for casual users, budget-conscious gamers, and those building compact systems. Its lower price and sufficient features cater to less demanding applications. In contrast, the MSI MAG B850M Mortar WiFi is aimed at serious gamers and professionals who require top-tier performance, advanced connectivity, and overclocking capabilities. This distinction is reflected in their respective prices and specifications.
Which should you buy?
Ultimately, the decision between the Gigabyte A520I AC and the MSI MAG B850M Mortar WiFi hinges on your specific needs and budget. If you are looking for an affordable, space-efficient motherboard suitable for basic tasks and casual gaming, the A520I AC at $99.99 serves as a commendable choice. However, for those who prioritize performance, future-proofing, and advanced features, the MSI MAG B850M Mortar WiFi is worth the investment at $219.99. Its superior specifications make it ideal for high-performance gaming and demanding applications, making it the better option for power users.