ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 vs MSI PRO B850-P WiFi Motherboard, ATX
Updated August 2026 — MSI PRO B850-P WiFi Motherboard, ATX leads on cooling and overclocking.
The MSI PRO B850-P WiFi offers superior technology and performance, while the ASRock B550M-ITX/AC is a budget-friendly option for older Ryzen processors.
Why ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 is better
Price
ASRock is $45.51 cheaper
Size
ASRock is a Mini ITX motherboard
Compatibility
Supports a wider range of AMD AM4 processors
Why MSI PRO B850-P WiFi Motherboard, ATX is better
Performance
Supports latest Ryzen 9000 series processors
Memory
Supports DDR5 memory with higher speeds
Cooling
Advanced cooling solutions for better thermal management
Overall score
Specifications
| Spec | ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 | MSI PRO B850-P WiFi Motherboard, ATX |
|---|---|---|
| Processor Support | AMD AM4 | AMD AM5 |
| Memory Type | DDR4 | DDR5 |
| Max Memory Speed | 4733 MHz | 8200 MT/s |
| Audio Codec | Realtek ALC887 | Audio Boost |
| Wi-Fi | No | Wi-Fi 7 |
Dimension comparison
Price Comparison
The ASRock B550M-ITX/AC is priced at $109.99, making it about 17% cheaper than the MSI PRO B850-P WiFi, which retails for $155.50. This price difference can be significant for budget-conscious builders or those looking for a solid entry-level motherboard. The ASRock model offers a great balance of features and performance for its price point, particularly for users focused on 3rd Gen AMD Ryzen processors. In contrast, the MSI board, while more expensive, provides support for the latest Ryzen 9000 series, which may justify the higher cost for those seeking the latest technology and performance.
Compatibility with Processors
The ASRock B550M-ITX/AC supports a range of AMD AM4 processors, including Ryzen 3000, 4000 G-Series, and 5000 series, but does not support AMD Athlon processors. This makes it a robust option for users with existing Ryzen setups. On the other hand, the MSI PRO B850-P WiFi is designed for the latest AMD Ryzen 9000, 8000, and 7000 processors, utilizing the AM5 socket. This modern compatibility is essential for users looking to future-proof their systems or upgrade to the latest CPUs. Therefore, if you're aiming for the newest generation, the MSI motherboard is the clear choice.
Memory Support
The ASRock B550M-ITX/AC supports DDR4 memory with overclocking capabilities up to 4733 MHz, providing decent performance for most gaming and productivity tasks. In contrast, the MSI PRO B850-P WiFi significantly advances memory technology by supporting DDR5 memory with speeds of up to 8200 MT/s when overclocked. This enables more bandwidth and better performance in memory-intensive applications. If you prioritize high-speed memory for tasks such as gaming or video editing, the MSI model offers a distinct advantage.
Cooling Solutions
Cooling is essential for maintaining performance, especially during overclocking. The ASRock B550M-ITX/AC provides standard cooling solutions suitable for its class, but it lacks advanced thermal features. In contrast, the MSI PRO B850-P WiFi is equipped with several cooling enhancements, including a 12 Duet Rail Power System, thermal pads, and an Extended Heatsink for improved heat dissipation. These features help maintain optimal temperatures, especially when pushing the motherboard to its limits with high-performance components. Users looking to maximize their system's thermal performance will find the MSI option superior.
Connectivity Options
Connectivity can greatly enhance the usability of a motherboard. The ASRock B550M-ITX/AC features basic connectivity options, including HDMI and DisplayPort for graphics output, but lacks modern advancements in networking. In comparison, the MSI PRO B850-P WiFi stands out with full-speed Wi-Fi 7 support, Bluetooth 5.4, and a variety of USB ports, including USB 10Gbps Type-C. These features make the MSI motherboard ideal for users who require high-speed internet or plan to connect multiple devices seamlessly. For modern connectivity needs, the MSI option is clearly more equipped.
Audio Capabilities
Both motherboards provide essential audio capabilities, but they differ in quality and technology. The ASRock B550M-ITX/AC includes 7.1 CH HD Audio, which is sufficient for most gaming and media consumption needs. Meanwhile, the MSI PRO B850-P WiFi also supports 7.1 HD Audio but enhances the experience with Audio Boost technology, which can deliver clearer sound and better audio fidelity. For audiophiles or gamers who prioritize sound quality, the MSI motherboard offers a distinct edge.
Build Quality and Design
In terms of build quality, both motherboards are designed with durability in mind, but they cater to different audiences. The ASRock B550M-ITX/AC features sturdy components suitable for its form factor, making it ideal for compact builds. The MSI PRO B850-P WiFi, however, incorporates premium materials such as a server-grade PCB and Surface Mount Technology (SMT) soldering for improved signal clarity. This attention to detail not only enhances durability but also ensures better overall performance. Builders seeking longevity and reliability in their components may prefer the MSI board for its superior design.
Which should you buy?
The decision between the ASRock B550M-ITX/AC and the MSI PRO B850-P WiFi ultimately comes down to your specific needs and budget. If you are looking for an economical option that supports a wide range of AMD processors and provides decent performance, the ASRock model is a solid choice at $109.99. However, if you require cutting-edge technology with support for the latest Ryzen processors, DDR5 memory, and advanced cooling solutions, the MSI board, priced at $155.50, is worth the investment. Consider your future upgrade plans and the types of applications you intend to run when making your choice.

