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ASRock AMD B850i Lightning WiFi 6E Socket AM5 vs MSI MAG X870 Tomahawk WiFi Gaming Motherboard

Updated August 2026 — ASRock AMD B850i Lightning WiFi 6E Socket AM5 wins on price and size, MSI MAG X870 Tomahawk WiFi Gaming Motherboard wins on audio and connectivity.

The ASRock AMD B850i Lightning offers a compact and budget-friendly option, while the MSI MAG X870 Tomahawk provides superior features and connectivity. Choose based on your specific needs.

Why ASRock AMD B850i Lightning WiFi 6E Socket AM5 is better

Price

ASRock is $40 cheaper

Size

Mini-ITX form factor for compact builds

Memory Speed

Supports extreme overclocking up to 8200+ MHz

Why MSI MAG X870 Tomahawk WiFi Gaming Motherboard is better

Connectivity

Includes USB 4 port with 40Gbps speed

Audio

Features Audio Boost 5 for enhanced sound

Power Delivery

Extended PWM heatsink for better cooling

Overall score

ASRock AMD B850i Lightning WiFi 6E Socket AM5
78
MSI MAG X870 Tomahawk WiFi Gaming Motherboard
85

Specifications

SpecASRock AMD B850i Lightning WiFi 6E Socket AM5MSI MAG X870 Tomahawk WiFi Gaming Motherboard
Form FactorMini-ITXATX
Memory Support2x DDR5DDR5
USB PortsUSB 3.2 Gen2USB 4
LANKiller 2.5G5G LAN
Audio FeaturesNot specifiedAudio Boost 5

Dimension comparison

ASRock AMD B850i Lightning WiFi 6E Socket AM5MSI MAG X870 Tomahawk WiFi Gaming Motherboard

Overview of the ASRock AMD B850i Lightning and MSI MAG X870 Tomahawk

The ASRock AMD B850i Lightning is priced at $179.99, while the MSI MAG X870 Tomahawk costs $219.99, making the ASRock about 18% cheaper. Both motherboards are designed for AMD Ryzen 9000, 8000, and 7000 series processors, offering robust performance for gaming and productivity, but they cater to different needs and preferences. The ASRock is a Mini-ITX board, perfect for compact builds, while the MSI is an ATX option, providing more expandability and features.

Design and Form Factor

Design differences are significant between the ASRock AMD B850i Lightning and the MSI MAG X870 Tomahawk. The ASRock, with its Mini-ITX form factor, measures 170x170mm, making it ideal for small form factor cases. This compact design supports high-performance components while saving space. In contrast, the MSI features a larger ATX form factor, allowing for more expansion slots and connectivity options. Users looking for a more space-efficient build may prefer the ASRock, while those needing additional capabilities might opt for the MSI.

Power Delivery and Performance

The ASRock AMD B850i Lightning boasts a premium power delivery system with a 10+1+1 phase design and a 110A Smart Power Stage. This setup ensures stable performance, especially under load, which is crucial for compact builds where thermal and power efficiency is paramount. On the other hand, the MSI MAG X870 Tomahawk features an extended PWM heatsink and enhanced circuit design, which also supports high-end processors effectively. While both motherboards offer solid power solutions, the ASRock's compact design focuses more on efficiency in tight spaces.

Memory Support

When it comes to memory, the ASRock AMD B850i Lightning supports dual-channel configurations with 2 DDR5 DIMM slots, allowing for extreme overclocking speeds of up to 8200+ MHz. This is particularly beneficial for users looking to maximize memory performance in a compact setup. Meanwhile, the MSI MAG X870 Tomahawk also supports DDR5 memory but does not specify a maximum speed. Users looking for high-speed memory capabilities might find the ASRock more appealing, especially if they plan to push memory performance.

Connectivity Options

Connectivity is a crucial factor for any motherboard. The ASRock AMD B850i Lightning features advanced networking options, including Killer 2.5G LAN and WiFi 6E with Bluetooth, ensuring premium wired and wireless connectivity. It also includes a USB 3.2 Gen2 Type-C port for high-speed data transfers. In comparison, the MSI MAG X870 Tomahawk offers a built-in USB 4 port that delivers lightning-fast 40Gbps transmission speeds, alongside 5G LAN for superior network performance. While both motherboards provide excellent connectivity, the MSI edges out with its higher USB transmission speed, which is ideal for data-intensive tasks.

Storage Solutions

Storage capabilities vary between the two products. The ASRock AMD B850i Lightning features both Blazing M.2 (PCIe Gen5x4) and Hyper M.2 (PCIe Gen4x4) slots, maximizing storage performance in compact builds. This dual-slot design allows for fast data access, essential for gaming and content creation. Conversely, the MSI MAG X870 Tomahawk also includes M.2 Gen5 slots, but the specifics of its storage capabilities are not detailed. The presence of multiple M.2 slots in the ASRock makes it a strong contender for users prioritizing storage performance in smaller systems.

Audio Features

Audio quality can greatly enhance the gaming and multimedia experience. The ASRock AMD B850i Lightning does not specify audio features, making it difficult to assess its performance in this area. In contrast, the MSI MAG X870 Tomahawk includes Audio Boost 5, which isolates audio with a high-quality audio processor for an immersive gaming experience. For users who prioritize sound quality, the MSI offers a clear advantage with its dedicated audio enhancement features.

Pricing and Value

The ASRock AMD B850i Lightning is priced at $179.99, while the MSI MAG X870 Tomahawk is available for $219.99, representing a price difference of $40. This makes the ASRock about 18% cheaper than the MSI. For budget-conscious consumers or those building a compact system, the ASRock presents a compelling value proposition. However, the additional features and capabilities of the MSI may justify its higher price for users seeking an expanded feature set.

Which should you buy?

Choosing between the ASRock AMD B850i Lightning and the MSI MAG X870 Tomahawk ultimately depends on your specific needs. If you’re looking for a compact, budget-friendly option with excellent memory support and storage solutions, the ASRock is the way to go. However, if you need an ATX motherboard with superior connectivity options, enhanced audio features, and a robust power delivery system, the MSI is worth the extra investment. Consider your build requirements and preferences carefully before making a decision.