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ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard vs MSI MAG X870 Tomahawk WiFi Gaming Motherboard

Updated August 2026 — ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard wins on size and price, MSI MAG X870 Tomahawk WiFi Gaming Motherboard wins on audio and cooling.

The ASRock B650I Lightning WiFi offers excellent value for compact builds, while the MSI MAG X870 Tomahawk WiFi excels in advanced features for gamers.

Why ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard is better

Price

ASRock is 23% cheaper

Size

Ultra-compact Mini-ITX design

Memory Speed

Supports DDR5 7200+ (OC)

Why MSI MAG X870 Tomahawk WiFi Gaming Motherboard is better

Connectivity

Lightning USB 40G for faster data transfer

Audio

Audio Boost 5 for enhanced sound quality

Cooling

Extended heatsink design for better thermal management

Overall score

ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard
78
MSI MAG X870 Tomahawk WiFi Gaming Motherboard
85

Specifications

SpecASRock B650I Lightning WiFi AMD AM5 Mini-ITX MotherboardMSI MAG X870 Tomahawk WiFi Gaming Motherboard
Form FactorMini-ITXATX
Processor SupportAMD Ryzen 9000/8000/7000AMD Ryzen 9000/8000/7000
Memory TypeDDR5DDR5
PCIe Version5.05.0
LAN2.5G5G

Dimension comparison

ASRock B650I Lightning WiFi AMD AM5 Mini-ITX MotherboardMSI MAG X870 Tomahawk WiFi Gaming Motherboard

Pricing Comparison

The ASRock B650I Lightning WiFi is priced at $169.99, making it about 23% cheaper than the MSI MAG X870 Tomahawk WiFi, which retails for $219.99. This price difference could be significant for budget-conscious consumers looking to build or upgrade their systems without compromising performance. While the ASRock motherboard offers compelling features for smaller builds, the MSI unit provides additional functionalities that could justify its higher price for gamers and power users.

Form Factor and Design

The ASRock B650I Lightning WiFi features an ultra-compact Mini-ITX design, measuring 170mm x 170mm, ideal for small form factor builds. This compactness makes it suitable for users with limited space who still want a powerful computing experience. In contrast, the MSI MAG X870 Tomahawk WiFi is designed in a standard ATX form factor, offering more expansion slots and a larger surface area for enhanced cooling and layout flexibility. This difference in size and design can be pivotal depending on the user's specific build requirements and preferences.

Processor Compatibility

Both motherboards support AMD Ryzen 9000, 8000, and 7000 Series processors, ensuring compatibility with the latest generation of AMD chips. The ASRock B650I Lightning WiFi is tailored for users seeking a compact solution without sacrificing CPU capabilities. Meanwhile, the MSI MAG X870 Tomahawk WiFi may cater better to those who prioritize high-performance gaming or multi-tasking, given its robust design and features aimed at gamers. The choice here may hinge on how users plan to utilize their CPUs within their builds.

Memory Support

The ASRock B650I Lightning WiFi can support DDR5 memory speeds of up to 7200+ (OC) in dual-channel configuration, allowing for exceptional overclocking potential. On the other hand, while the MSI MAG X870 Tomahawk WiFi also supports DDR5, specific speed details are not provided, which may indicate a slightly different approach to memory optimization. For users who prioritize high-speed memory capabilities for gaming or professional tasks, the ASRock motherboard may be the more attractive option, especially given its explicit support for overclocked speeds.

Connectivity Options

When it comes to connectivity, the ASRock B650I Lightning WiFi boasts a comprehensive suite, including 2.5G LAN, Intel WiFi 6E, and multiple USB 3.2 Gen2 ports. This extensive connectivity makes it a versatile choice for users who need speed and flexibility. The MSI MAG X870 Tomahawk WiFi, on the other hand, emphasizes its Lightning USB 40G, which provides lightning-fast 40Gbps transmission speed, along with Wi-Fi 7 and Bluetooth 5.4. The advanced connectivity options of the MSI motherboard may appeal more to tech-savvy users looking for cutting-edge capabilities, particularly in gaming scenarios.

Audio Features

In terms of audio capabilities, the ASRock B650I Lightning WiFi features the Realtek ALC897 7.1 CH HD Audio Codec, enhanced with Nahimic Audio for an immersive experience. This focus on audio quality can be particularly beneficial for users who engage in gaming or content creation where sound clarity is essential. The MSI MAG X870 Tomahawk WiFi also prioritizes audio with its Audio Boost 5 technology, promising isolated audio with a high-quality audio processor. While both motherboards offer robust audio solutions, the choice may depend on personal preferences regarding the specific audio enhancements they provide.

Power Delivery and Cooling

The ASRock B650I Lightning WiFi incorporates an advanced 8+2+1 phase power delivery system, which utilizes premium Dr.MOS components to ensure stability and efficiency during high-performance tasks. This design is particularly beneficial for users pushing their systems to the limit. In contrast, the MSI MAG X870 Tomahawk WiFi features an extended heatsink design aimed at maintaining optimal temperatures under heavy loads. This difference indicates that while both motherboards are built for performance, the ASRock may have a slight edge in power delivery efficiency, while the MSI focuses more on thermal management.

Which should you buy?

Ultimately, the choice between the ASRock B650I Lightning WiFi and the MSI MAG X870 Tomahawk WiFi depends on your specific needs and budget. The ASRock motherboard is about 23% cheaper and ideal for compact builds with high-speed memory support and excellent connectivity. Conversely, the MSI unit justifies its higher price with advanced features like Lightning USB 40G and superior audio capabilities, making it perfect for gamers and power users who need more from their motherboard. Consider what aspects are most important for your build before making a decision.