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ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard vs MSI MAG B850M Mortar WiFi Motherboard, mATX

Updated August 2026 — MSI MAG B850M Mortar WiFi Motherboard, mATX leads on storage options and performance.

The ASRock B650I Lightning WiFi is a compact and cost-effective option, while the MSI MAG B850M Mortar WiFi offers superior performance and expandability. Choose based on your specific needs.

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

Price

ASRock is $50 cheaper

Size

Mini-ITX design for compact builds

Power Phase

8+2+1 phase power design

Why MSI MAG B850M Mortar WiFi Motherboard, mATX is better

Memory Speed

Supports up to 8200+ MT/s

Connectivity

Includes Wi-Fi 7 and Bluetooth 5.4

Storage Options

Three M.2 connectors for flexibility

Overall score

ASRock B650I Lightning WiFi AMD AM5 Mini-ITX Motherboard
75
MSI MAG B850M Mortar WiFi Motherboard, mATX
85

Specifications

SpecASRock B650I Lightning WiFi AMD AM5 Mini-ITX MotherboardMSI MAG B850M Mortar WiFi Motherboard, mATX
Form FactorMini-ITXmicro-ATX
Power Phase8+2+112 Duet Rail
Memory Slots24
Max Memory Speed7200+ MT/s8200+ MT/s
M.2 Slots23

Dimension comparison

ASRock B650I Lightning WiFi AMD AM5 Mini-ITX MotherboardMSI MAG B850M Mortar WiFi Motherboard, mATX

Overview of the ASRock B650I Lightning WiFi and MSI MAG B850M Mortar WiFi

The ASRock B650I Lightning WiFi is priced at $169.99, while the MSI MAG B850M Mortar WiFi comes in at $219.99, making the ASRock model about 23% cheaper. Both motherboards support AMD Ryzen processors and feature advanced connectivity options, but they cater to different setups and user needs. The ASRock motherboard is designed for compact builds, whereas the MSI motherboard provides more expansive capabilities suited for high-performance gaming.

Design and Form Factor

The ASRock B650I Lightning WiFi features a mini-ITX design, measuring just 170mm x 170mm, making it ideal for small form factor builds. This compact nature allows users to create space-efficient systems without sacrificing performance. On the other hand, the MSI MAG B850M Mortar WiFi adopts a micro-ATX form factor, which provides more room for additional components and expandability. This larger design allows for enhanced cooling solutions and more ports, catering to users who need greater functionality and flexibility in their builds.

Power Delivery and Stability

When it comes to power delivery, the ASRock B650I Lightning WiFi boasts an 8+2+1 phase power design, ensuring stable performance for AMD Ryzen processors. This configuration is particularly beneficial for users looking to overclock their CPUs. Conversely, the MSI MAG B850M Mortar WiFi features a more robust 12 Duet Rail Power System (60A, SPS) VRM. This advanced power delivery system is designed to support the latest Ryzen 9000 processors at high performance levels, providing enhanced stability and efficiency under heavy loads.

Memory Support and Overclocking

The ASRock B650I Lightning WiFi supports dual DDR5 DIMM slots optimized for speeds up to 7200+ MT/s in dual-channel configuration. This capability makes it a solid choice for memory enthusiasts who want to push their systems to the limits. In comparison, the MSI MAG B850M Mortar WiFi takes it a step further with four DDR5 DIMM slots that can achieve extreme memory overclocking speeds of 8200+ MT/s. This additional capacity makes it a superior option for users who require high memory bandwidth for gaming or content creation.

Storage Options

For storage, the ASRock B650I Lightning WiFi incorporates a blazing M.2 PCIe 5.0 x4 slot alongside dual M.2 slots (PCIe 5.0 and PCIe 4.0) and two SATA3 ports. This configuration allows for a diverse range of storage solutions and speeds. In contrast, the MSI MAG B850M Mortar WiFi offers even more flexibility with three M.2 connectors, including two M.2 Gen5 x4 128Gbps slots and one M.2 Gen4 x2 32Gbps slot. This extensive storage capability is ideal for gamers and professionals needing fast access to large amounts of data.

Connectivity Features

The connectivity options differ significantly between the two motherboards. The ASRock B650I Lightning WiFi features a comprehensive suite with 2.5G LAN, Intel WiFi 6E, and multiple USB 3.2 Gen2 ports, including front and rear Type-C. This ensures that users have fast and versatile connectivity options. Meanwhile, the MSI MAG B850M Mortar WiFi enhances its connectivity with Wi-Fi 7 and Bluetooth 5.4, along with 5Gbps LAN. The inclusion of these advanced technologies positions the MSI board as a more future-proof choice, especially for users who prioritize high-speed wireless connections.

Audio Experience

Both motherboards provide quality audio solutions, but their approaches differ. The ASRock B650I Lightning WiFi features the Realtek ALC897 7.1 CH HD Audio Codec, enhanced with Nahimic Audio for an immersive experience. This makes it suitable for gaming and media consumption. In contrast, the MSI MAG B850M Mortar WiFi includes Audio Boost 5, which supports 7.1 USB High Performance Audio, ensuring clear and powerful sound. While both motherboards offer excellent audio capabilities, the MSI model may appeal more to audiophiles and gamers looking for enhanced sound quality.

Which should you buy?

Choosing between the ASRock B650I Lightning WiFi and the MSI MAG B850M Mortar WiFi ultimately depends on your specific needs and preferences. The ASRock model is a great option if you are looking for a compact, cost-effective solution that still delivers solid performance. However, if you require greater expandability, higher memory speeds, and cutting-edge connectivity options, the MSI motherboard justifies its higher price of $219.99 with its advanced features and capabilities. Therefore, for users building compact systems, the ASRock is the way to go, while gamers and power users should consider the MSI for its superior performance potential.