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ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs Asus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX

Updated July 2026 — ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA wins on size, Asus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX wins on price and connectivity.

The Asus ROG Strix B550-F Gaming WiFi II offers superior performance and features compared to the ASRock B450M/AC R2.0. For gamers and power users, the investment in the Asus model is justified.

Why ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA is better

Price

ASRock is significantly cheaper at $79.00.

Basic Features

Adequate for general computing tasks.

Size

Micro ATX form factor is compact.

Why Asus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX is better

Performance

Supports PCIe 4.0 for faster data transfer.

Connectivity

Includes WiFi 6E and dual M.2 slots.

Aesthetics

Customizable RGB lighting enhances gaming setups.

Overall score

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA
70
Asus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX
90

Specifications

SpecASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAAsus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX
SocketAM4AM4
PCIe Version3.04.0
WiFiNoYes
Memory Speed3200 MHz3200 MHz
M.2 Slots12

Dimension comparison

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAAsus ROG Strix B550-F Gaming WiFi II AMD AM4 ATX

Overview of the ASRock B450M/AC R2.0 and Asus ROG Strix B550-F Gaming WiFi II

The ASRock B450M/AC R2.0 is priced at $79.00, making it about 43% cheaper than the Asus ROG Strix B550-F Gaming WiFi II, which retails for $139.99. While both motherboards are designed for AMD processors, they cater to different segments of the market, with the ASRock model being more budget-friendly and the Asus model offering advanced features for gamers and power users.

The ASRock B450M/AC R2.0 supports a range of AMD AM4 socket processors, including Ryzen 2000, 3000, 4000 G-Series, and 5000 series. Its micro ATX form factor makes it a compact option for smaller builds. In contrast, the Asus ROG Strix B550-F Gaming WiFi II is an ATX motherboard designed specifically for the latest 3rd Gen Ryzen processors, featuring cutting-edge technologies like PCIe 4.0 and WiFi 6E.

Performance and Compatibility

In terms of performance, the Asus ROG Strix B550-F Gaming WiFi II has a clear advantage due to its support for PCIe 4.0, which allows for faster data transfer rates compared to the PCIe 3.0 support found in the ASRock B450M/AC R2.0. This makes the Asus motherboard a better choice for users looking to maximize their system's performance, especially for gaming or intensive applications.

The ASRock B450M/AC R2.0 can still handle a variety of Ryzen processors effectively, making it suitable for budget builds or users who do not require the latest features. It supports DDR4 memory speeds of up to 3200 MHz, which is sufficient for most everyday tasks. However, for gamers and content creators, the enhanced performance capabilities of the Asus model make it the superior choice.

Features and Connectivity

The Asus ROG Strix B550-F Gaming WiFi II is packed with premium features, including dual M.2 slots for high-speed SSDs, USB 3.2 Gen 2 Type-C support, and onboard WiFi 6E, offering faster connectivity than the ASRock B450M/AC R2.0. The latter lacks some of these advanced features, which may limit its usability for high-performance tasks.

Moreover, the Asus model includes Bluetooth v5.2 and a robust power solution with 12+2 teamed power stages, ensuring stable power delivery for overclocking and demanding applications. In contrast, the ASRock motherboard's features are more basic, focusing on essential connectivity, such as HDMI output and PCIe slots for expansion.

Design and Aesthetics

The design of the Asus ROG Strix B550-F Gaming WiFi II is oriented toward gamers, featuring customizable RGB lighting and a sleek aesthetic that fits well in a gaming setup. The motherboard is designed with effective cooling in mind, which is crucial for maintaining performance during extended gaming sessions.

Conversely, the ASRock B450M/AC R2.0 has a more utilitarian design, focusing on functionality rather than aesthetics. While it does provide essential features for a solid build, it lacks the visual flair that many gamers seek. For users who prioritize aesthetics as part of their build, the Asus option is likely to be more appealing.

User Experience and Software

The user experience offered by the Asus ROG Strix B550-F Gaming WiFi II is enhanced by its renowned software, which includes a 60-day subscription to AIDA64 Extreme and an intuitive UEFI BIOS dashboard. This software support can significantly aid users in optimizing their systems and monitoring performance metrics.

The ASRock B450M/AC R2.0 does not highlight any software benefits in its description, which may limit its appeal for users looking for additional tools to enhance their experience. The lack of advanced user interface features may also deter some tech-savvy users who prefer a more customizable setup.

Pricing and Value

At $79.00, the ASRock B450M/AC R2.0 offers exceptional value for budget-conscious consumers. It provides adequate performance for general computing tasks and can support a wide range of AMD processors. However, it does come with trade-offs in terms of features and future-proofing.

In contrast, the Asus ROG Strix B550-F Gaming WiFi II's price of $139.99 reflects its advanced capabilities and features tailored for gamers and high-performance users. While it is about 77% more expensive than the ASRock option, the additional investment may be justified for those who require the latest technology and enhanced performance.

Which should you buy?

Choosing between the ASRock B450M/AC R2.0 and the Asus ROG Strix B550-F Gaming WiFi II ultimately depends on your specific needs and budget. If you are looking for a cost-effective solution for general use or light gaming, the ASRock B450M/AC R2.0 is an excellent choice at $79.00. However, if you are a serious gamer or power user who needs advanced features like PCIe 4.0, dual M.2 slots, and superior connectivity options, investing in the Asus ROG Strix B550-F Gaming WiFi II for $139.99 will provide better long-term value and performance.