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ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs MSI B650 Gaming Plus WiFi Motherboard AMD B650

Updated July 2026 — ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA wins on compatibility, MSI B650 Gaming Plus WiFi Motherboard AMD B650 wins on price and cooling.

The MSI B650 Gaming Plus WiFi offers superior performance and features for gamers, while the ASRock B450M/AC R2.0 is a budget-friendly option for basic builds.

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

Price

ASRock is significantly cheaper at $79.00.

Size

ASRock is a compact Micro ATX motherboard.

Compatibility

ASRock supports a wider range of older AMD processors.

Why MSI B650 Gaming Plus WiFi Motherboard AMD B650 is better

Performance

MSI supports higher DDR5 memory speeds.

Cooling

MSI has advanced cooling solutions for overclocking.

Connectivity

MSI includes Wi-Fi 6E and Bluetooth 5.3.

Overall score

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA
65
MSI B650 Gaming Plus WiFi Motherboard AMD B650
85

Specifications

SpecASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAMSI B650 Gaming Plus WiFi Motherboard AMD B650
SocketAM4AM5
Memory TypeDDR4DDR5
PCIe Slots1 x PCIe 3.02 x PCIe 4.0
CoolingBasicAdvanced
Wi-FiNoYes

Dimension comparison

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAMSI B650 Gaming Plus WiFi Motherboard AMD B650

Overview of the ASRock B450M/AC R2.0 and MSI B650 Gaming Plus WiFi

When comparing the ASRock B450M/AC R2.0 and the MSI B650 Gaming Plus WiFi, the price difference is significant. The ASRock model is priced at $79.00, while the MSI option costs $171.54, making the MSI about 117% more expensive. This comparison will explore their features, performance, and suitability for different users, providing a comprehensive understanding of which motherboard might be the better choice for your needs.

Design and Build Quality

The ASRock B450M/AC R2.0 is designed as a Micro ATX motherboard, making it compact and suitable for smaller builds. It supports AMD's AM4 socket processors, including Ryzen 2000 to 5000 series. On the other hand, the MSI B650 Gaming Plus WiFi is an ATX motherboard, offering more expansion options due to its larger size. It features a 12+2 Duet Rail VRM, which enhances power delivery for high-performance processors. Both motherboards are built with quality in mind, but MSI's design caters more to gamers and high-performance users with its extended heatsinks and cooling solutions.

Compatibility and Processor Support

The ASRock B450M/AC R2.0 supports a wide range of AMD processors, including Ryzen 2000, 3000, 4000 G-Series, and 5000 series processors. This broad compatibility makes it a versatile choice for users looking to build a system with older or newer AMD chips. In contrast, the MSI B650 Gaming Plus WiFi is designed for the latest AMD AM5 socket and supports Ryzen 9000, 8000, and 7000 series processors. This makes it a more future-proof option for users who want to invest in the latest technology.

Memory and Expansion Slots

In terms of memory support, the ASRock B450M/AC R2.0 supports DDR4 memory up to 3200 MHz, which is standard for most current builds. The MSI B650 Gaming Plus WiFi, however, takes it a step further with support for DDR5 memory, offering speeds of up to 6400 MHz when overclocked. This significant upgrade allows for better overall performance in memory-intensive applications. Additionally, while the ASRock board has one PCIe 3.0 x16 slot, the MSI model features dual PCIe 4.0 x16 slots, providing enhanced graphics card support and speed for demanding tasks.

Cooling Solutions

Cooling is a critical factor for high-performance motherboards. The ASRock B450M/AC R2.0 features basic cooling capabilities, primarily using its standard heatsinks. In contrast, the MSI B650 Gaming Plus WiFi boasts integrated cooling solutions, including 7W/mK MOSFET thermal pads and an extended heatsink. It also includes a dedicated pump-fan cooling header and M.2 Shield Frozr to prevent thermal throttling during SSD access. This advanced cooling design makes the MSI model better suited for overclocking and high-performance gaming setups.

Connectivity Options

Connectivity features differ significantly between the two motherboards. The ASRock B450M/AC R2.0 includes HDMI output and basic connectivity options suitable for standard users. On the other hand, the MSI B650 Gaming Plus WiFi supports advanced features like Wi-Fi 6E, Bluetooth 5.3, and Realtek 2.5G LAN, enhancing network performance for gamers and professionals alike. Additionally, it offers USB 3.2 Gen 2x2 Type-C ports, which allow for faster data transfer speeds compared to the more basic USB options on the ASRock motherboard.

Gaming and Performance Features

The gaming capabilities of the MSI B650 Gaming Plus WiFi clearly outshine those of the ASRock B450M/AC R2.0. With its support for Ryzen 9000 series processors and dual PCIe 4.0 slots, the MSI model is designed for high-performance gaming and demanding applications. The ASRock B450M/AC R2.0, while still capable for casual gaming, lacks the high-end features needed for serious gamers, such as advanced overclocking support and enhanced graphics capabilities.

Price and Value Proposition

The ASRock B450M/AC R2.0 is priced at $79.00, making it a highly affordable option for users on a budget or those looking to build a basic system. In contrast, the MSI B650 Gaming Plus WiFi, at $171.54, is targeted at users who require advanced features and superior performance. While the MSI motherboard offers more in terms of technology and capabilities, consumers must consider whether the additional cost aligns with their specific needs and budget.

Which should you buy?

Choosing between the ASRock B450M/AC R2.0 and the MSI B650 Gaming Plus WiFi ultimately depends on your requirements and budget. If you're looking for an affordable, basic motherboard for a budget build, the ASRock option is a solid choice, especially with its support for a range of AMD processors. However, if you are aiming for a high-performance gaming setup or future-proofing your system with the latest technology, the MSI model is worth the investment, offering advanced features and superior performance capabilities.