ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs ASUS TUF Gaming B650
Updated July 2026 — ASUS TUF Gaming B650 leads on price and connectivity.
The ASUS TUF Gaming B650-PLUS WiFi offers superior performance and features compared to the ASRock B450M/AC R2.0, making it the better choice for gamers and power users.
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 older AMD processors.
Size
Micro ATX form factor is compact.
Why ASUS TUF Gaming B650 is better
Performance
Superior power delivery with 12 plus 2 stages.
Memory Support
Supports next-gen DDR5 memory.
Connectivity
Includes WiFi 6 and USB4 support.
Overall score
Specifications
| Spec | ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA | ASUS TUF Gaming B650 |
|---|---|---|
| Socket Type | AM4 | AM5 |
| Max RAM | DDR4 3200 | DDR5 |
| Power Stages | 1 plus 1 | 12 plus 2 |
| PCIe Version | 3.0 | 5.0 |
| WiFi | No | WiFi 6 |
Dimension comparison
Overview of the Products
When choosing between the ASRock B450M/AC R2.0 and the ASUS TUF Gaming B650-PLUS WiFi, users need to consider their specific needs and budget. The ASRock motherboard is priced at $79.00, making it significantly more affordable than the ASUS model, which retails for $144.00. This price difference of about 82% reflects the varying features and target audiences of these two motherboards.
Compatibility and Socket Type
The ASRock B450M/AC R2.0 supports the AMD AM4 socket, compatible with Ryzen 2000, 3000, 4000 G-Series, and 5000 processors. In contrast, the ASUS TUF Gaming B650-PLUS WiFi is built for the newer AMD AM5 socket, accommodating Ryzen 7000, 8000, and 9000 series processors. This distinction is crucial for users looking to build a system that utilizes the latest AMD technology. If you plan to use a Ryzen 7000 series CPU, the ASUS motherboard is the clear choice.
Performance Features
The ASUS TUF Gaming B650-PLUS WiFi boasts an impressive power delivery system with 12 plus 2 teamed power stages, ensuring stable power for high-performance CPUs. The ASRock B450M/AC R2.0, while capable, doesn't offer the same level of enhanced power solutions. The ASUS motherboard is designed for gamers and power users, featuring advanced cooling solutions and comprehensive connectivity options. Thus, for those looking to maximize performance, the ASUS model stands out.
Memory and Storage Options
Memory support is another area where these motherboards differ significantly. The ASRock B450M/AC R2.0 supports DDR4 memory up to 3200 MHz, while the ASUS TUF Gaming B650-PLUS WiFi is designed for next-gen DDR5 memory. Additionally, the ASUS model features M.2 PCIe 5.0 slots, enhancing storage speed and capabilities. For users focused on future-proofing their builds and leveraging the latest memory technology, the ASUS motherboard is undeniably the better option.
Connectivity Features
Connectivity options are a strong point for the ASUS TUF Gaming B650-PLUS WiFi. It includes WiFi 6, Realtek 2.5 Gb Ethernet, and multiple USB ports, including USB4 support, making it ideal for gaming and high-speed data transfer. In contrast, the ASRock B450M/AC R2.0 offers basic connectivity with HDMI and limited PCIe slots. For users who prioritize high-speed internet and data transfer capabilities, the ASUS motherboard's extensive connectivity options provide a notable advantage.
Gaming and Cooling Capabilities
When it comes to gaming, the ASUS TUF Gaming B650-PLUS WiFi is engineered with features like two-way AI noise cancellation and comprehensive cooling solutions, including enlarged VRM and PCH heatsinks. These features ensure stable performance during intense gaming sessions. The ASRock B450M/AC R2.0 lacks similar advanced cooling features, making it less suitable for high-demand gaming applications. Thus, gamers and content creators would benefit more from the ASUS model's robust gaming-oriented design.
Design and Aesthetics
The aesthetics of a motherboard can be an essential factor for many users. The ASUS TUF Gaming B650-PLUS WiFi features a stylish edge lighting design with RGB effects, appealing to gamers who prefer a visually striking build. In contrast, the ASRock B450M/AC R2.0 has a more utilitarian design, which may not resonate as well with users looking for a visually appealing setup. If aesthetics are a priority, the ASUS motherboard's customizable RGB lighting will certainly catch the eye.
Price Comparison
The ASRock B450M/AC R2.0 is priced at $79.00, making it a budget-friendly option for users who need a basic motherboard for AMD processors. On the other hand, the ASUS TUF Gaming B650-PLUS WiFi is available for $144.00, which is about 82% more expensive. This investment reflects its advanced features and capabilities, appealing to gamers and power users. While the ASRock model offers solid performance for its price, the ASUS motherboard justifies its higher cost with superior features and future-proofing options.
Which should you buy?
Deciding between the ASRock B450M/AC R2.0 and the ASUS TUF Gaming B650-PLUS WiFi ultimately depends on your specific needs. If you're on a tight budget and require a reliable motherboard for AMD’s older processors, the ASRock model is a sensible choice. However, if you plan on using the latest Ryzen processors and prioritize performance, connectivity, and aesthetics, the ASUS motherboard is worth the additional investment. For gamers and power users, the enhanced features of the ASUS TUF Gaming B650-PLUS WiFi provide a compelling reason to choose it over the more affordable ASRock B450M/AC R2.0.