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ASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX Motherboard vs MSI B550-A PRO ProSeries Motherboard

Updated August 2026The ASUS Prime B840-PLUS WiFi offers superior features and performance compared to the MSI B550-A PRO, making it the better choice for enthusiasts.

The ASUS Prime B840-PLUS WiFi offers superior features and performance compared to the MSI B550-A PRO, making it the better choice for enthusiasts.

Why ASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX Motherboard is better

Processor Support

Supports latest AMD Ryzen 9000, 8000, and 7000 Series.

Connectivity

Includes Wi-Fi 6E and multiple high-speed USB ports.

Thermal Management

Comprehensive cooling solutions for high-performance tasks.

Why MSI B550-A PRO ProSeries Motherboard is better

Price

More budget-friendly at C$139.99.

DDR4 Support

Supports DDR4 memory up to 4400(OC) MHz.

Simplicity

User-friendly features for basic builds.

Overall score

ASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX Motherboard
85
MSI B550-A PRO ProSeries Motherboard
75

Specifications

SpecASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX MotherboardMSI B550-A PRO ProSeries Motherboard
Socket TypeAM5AM4
Memory TypeDDR5DDR4
Wi-Fi6ENone
USB Ports10Gbps Type-A & CStandard USB
Cooling SolutionsAdvancedStandard

Dimension comparison

ASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX MotherboardMSI B550-A PRO ProSeries Motherboard

Overview of the ASUS Prime B840-PLUS WiFi and MSI B550-A PRO

The ASUS Prime B840-PLUS WiFi is priced at C$153.44, while the MSI B550-A PRO is slightly cheaper at C$139.99. Both motherboards are designed for AMD processors, but they cater to different generations and features, making them suitable for different types of users looking to build or upgrade their PCs.

The ASUS Prime B840-PLUS WiFi is equipped to support the latest AMD Ryzen 9000, 8000, and 7000 Series Desktop Processors with an AM5 socket. In contrast, the MSI B550-A PRO is compatible with 3rd Gen AMD Ryzen Processors, requiring a BIOS update for future AMD processors. This difference indicates that the ASUS motherboard is better suited for those wanting to leverage newer technology.

Performance Capabilities

When it comes to performance, the ASUS Prime B840-PLUS WiFi is built with features that support advanced AI computing, making it a strong contender for users focused on high-performance applications. It includes a 6-layer PCB and provides stable power delivery through alloy chokes and durable capacitors.

On the other hand, the MSI B550-A PRO supports DDR4 memory with speeds up to 4400(OC) MHz, which is impressive but falls short compared to the DDR5 support of the ASUS motherboard. This means that while both can handle demanding tasks, the ASUS Prime B840-PLUS WiFi offers superior performance potential for future-proofing your setup.

Connectivity Options

The ASUS Prime B840-PLUS WiFi leads in connectivity features, boasting Wi-Fi 6E, PCIe 4.0 x16 slots, and multiple PCIe 4.0 M.2 slots. It also includes a Realtek 2.5Gb Ethernet connection, which provides excellent wired performance. Furthermore, rear USB ports offer 10Gbps Type-A and Type-C options, enhancing data transfer speeds significantly.

The MSI B550-A PRO, while also offering PCIe 4.0 and additional connectivity features, does not match the extensive wireless capabilities of the ASUS motherboard. The absence of Wi-Fi 6E and fewer high-speed USB ports could limit users who prioritise fast connectivity in their builds.

Thermal Management

Thermal management is crucial for maintaining optimal performance, and both motherboards have designed features accordingly. The ASUS Prime B840-PLUS WiFi includes comprehensive cooling solutions such as VRM and M.2 heatsinks, as well as hybrid fan headers and Fan Xpert 2+. This attention to cooling helps ensure stability during intensive tasks.

Conversely, the MSI B550-A PRO features an extended heatsink design and an M.2 Shield Frozr to keep temperatures in check. While it is effective, the ASUS's more advanced cooling system may provide a more robust solution for high-performance applications or overclocking scenarios.

DIY Friendly Features

The ASUS Prime B840-PLUS WiFi is designed with DIY enthusiasts in mind, featuring a pre-mounted I/O shield and BIOS FlashBack. These tools simplify the building process and allow for easier updates. Additionally, its Q-Antenna and Q-LED Core further enhance the user experience by aiding in setup and troubleshooting.

The MSI B550-A PRO is also user-friendly, incorporating features like Core Boost and DDR4 Boost, which are aimed at enhancing performance during assembly. However, it lacks some of the more advanced DIY features present in the ASUS motherboard, potentially making it less appealing for users seeking a streamlined building experience.

Aesthetic Appeal

Aesthetic considerations can play a significant role in motherboard selection. The ASUS Prime B840-PLUS WiFi stands out with its customizable RGB lighting through three Addressable Gen 2 headers, which can be configured using ASUS-exclusive Aura Sync software. This allows users to create a visually striking setup.

In contrast, the MSI B550-A PRO does not highlight any RGB features in its description. For users who value aesthetics as much as performance, the ASUS motherboard offers a distinct advantage in personalisation options.

Software and Support

The ASUS Prime B840-PLUS WiFi comes with a suite of renowned software, including Armoury Crate, ASUS DriverHub, and ASUS GlideX. These tools enhance the user experience by providing easy access to system management, updates, and customisation options.

While the MSI B550-A PRO does not specify included software, it is generally known for reliable support. However, the extensive software suite from ASUS may offer a more integrated experience for users looking to optimise their systems.

Which should you buy?

Deciding between the ASUS Prime B840-PLUS WiFi and the MSI B550-A PRO will largely depend on your specific needs and priorities. The ASUS motherboard is priced higher at C$153.44, but it offers advanced features like support for the latest AMD processors, superior connectivity options, and enhanced thermal management. Its DIY-friendly design and aesthetic appeal with RGB lighting make it an excellent choice for enthusiasts looking for a high-performance build.

On the other hand, the MSI B550-A PRO, priced at C$139.99, is a solid option for users who require a more budget-friendly motherboard that still delivers decent performance and support for older Ryzen processors. However, it may not provide the same level of future-proofing or advanced features as the ASUS Prime B840-PLUS WiFi.

In summary, if you are looking to invest in a motherboard that will serve you well into the future with robust features, the ASUS Prime B840-PLUS WiFi is the better choice. If you are more budget-conscious and working with older hardware, the MSI B550-A PRO could perfectly suffice.

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ASUS Prime B840-PLUS WiFi AMD AM5 B840 ATX Motherboard vs MSI B550-A PRO ProSeries Motherboard | versusfinder