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ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX

Updated July 2026 — ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA wins on price, MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX wins on networking and memory.

The MSI MAG X870E Tomahawk MAX WiFi PZ offers superior performance and features compared to the ASRock B450M/AC R2.0, making it the better choice for high-end users.

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

Price

ASRock is significantly cheaper at $79.00.

Compatibility

Supports a wider range of older Ryzen processors.

Basic Use

Adequate for budget builds and casual users.

Why MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX is better

Performance

Supports latest Ryzen 9000 series processors.

Memory

Supports DDR5 with higher speeds.

Connectivity

Includes Wi-Fi 7 and advanced audio features.

Overall score

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA
65
MSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX
90

Specifications

SpecASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAMSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX
Processor SupportRyzen 2000-5000Ryzen 9000/8000/7000
Memory TypeDDR4DDR5
PCIe Version3.05.0
M.2 Slots14
Wi-FiNoWi-Fi 7

Dimension comparison

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAMSI MAG X870E Tomahawk MAX WiFi PZ Motherboard, ATX

Overview of the ASRock B450M/AC R2.0 and MSI MAG X870E Tomahawk MAX WiFi PZ

The ASRock B450M/AC R2.0 is priced at $79.00, while the MSI MAG X870E Tomahawk MAX WiFi PZ comes in at $319.99, making the ASRock about 75% cheaper. This substantial price difference reflects the varying target audiences and capabilities of these two motherboards. The ASRock is designed for budget-conscious users or those building entry-level systems, whereas the MSI is geared towards high-performance gaming and advanced computing tasks.

Compatibility with Processors

The ASRock B450M/AC R2.0 supports AMD AM4 Socket Ryzen processors from the 2000 to 5000 series. This wide compatibility makes it a versatile choice for users wanting to build a system with older or mid-range Ryzen CPUs. In contrast, the MSI MAG X870E Tomahawk MAX WiFi PZ supports the latest AMD Ryzen 9000, 8000, and 7000 processors, indicating its focus on high-end performance. This capability allows users to harness the full power of the newest generation of Ryzen CPUs, making it suitable for demanding applications and gaming.

Memory Support and Overclocking

When it comes to memory support, the ASRock B450M/AC R2.0 supports DDR4 memory up to 3200 MHz. While this meets the needs of most users, it does not allow for extreme overclocking. On the other hand, the MSI MAG X870E Tomahawk MAX WiFi PZ supports DDR5 memory with speeds of over 8400 MT/s when overclocked. This difference is significant, as DDR5 provides faster data rates and improved overall performance, catering to gamers and professionals seeking high-speed memory solutions.

Expansion Slots and Connectivity

The ASRock B450M/AC R2.0 features one PCIe 3.0 x16 slot and one PCIe 2.0 x16 slot, which may limit the capability for users looking to install multiple graphics cards or high-speed devices. Meanwhile, the MSI MAG X870E Tomahawk MAX WiFi PZ offers a PCIe 5.0 x16 slot, providing double the bandwidth compared to PCIe 3.0. This allows for cutting-edge graphics cards and future-proofing for upcoming hardware. The MSI board also boasts multiple M.2 connectors and enhanced connectivity options, including Wi-Fi 7 and Bluetooth 5.4, making it a more versatile choice for modern setups.

Cooling Solutions

Cooling is essential for maintaining system performance, especially in high-demand scenarios. The ASRock B450M/AC R2.0 includes basic cooling solutions suitable for moderate workloads. However, the MSI MAG X870E Tomahawk MAX WiFi PZ is equipped with advanced thermal management features, including 7W/mK MOSFET thermal pads and an extended heatsink. These enhancements ensure that the motherboard remains cool under load, which is vital for maintaining optimal performance during gaming or intensive tasks.

Networking and Audio Features

In terms of networking, the ASRock B450M/AC R2.0 offers standard connectivity options without advanced features. Conversely, the MSI MAG X870E Tomahawk MAX WiFi PZ includes a full-speed Wi-Fi 7 module and 5Gbps LAN, along with advanced audio capabilities that support 7.1 USB High Performance Audio. This superior networking and audio performance is particularly advantageous for gamers and content creators who require high-quality sound and fast internet connections for online gaming or streaming.

Price Comparison and Value Proposition

The ASRock B450M/AC R2.0 is priced at $79.00, making it an attractive option for budget-conscious users or those building a basic system. The MSI MAG X870E Tomahawk MAX WiFi PZ, at $319.99, represents a significant investment aimed at enthusiasts wanting cutting-edge performance. While the ASRock provides good value for entry-level builds, the MSI's higher price reflects its advanced features and capabilities, appealing to users looking for a future-proof solution.

Which should you buy?

Choosing between the ASRock B450M/AC R2.0 and the MSI MAG X870E Tomahawk MAX WiFi PZ revolves around your specific needs and budget. If you are a casual user or building a budget-friendly system, the ASRock offers solid performance at a fraction of the price. However, if you are a gamer or someone who requires high performance and advanced features for demanding applications, the MSI motherboard is the clear choice despite its higher price tag. Ultimately, your decision should be based on your performance needs and the level of investment you are willing to make.