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ASRock AMD B850i Lightning WiFi 6E Socket AM5 vs MSI PRO B850-P WiFi Motherboard, ATX

Updated August 2026 — MSI PRO B850-P WiFi Motherboard, ATX leads on form factor and connectivity.

The MSI PRO B850-P WiFi offers better value with more features at a lower price, making it the preferred choice for most users.

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

Compact Design

Ideal for small form factor builds

Power Delivery

Stable performance in compact settings

Storage Options

High-speed storage slots

Why MSI PRO B850-P WiFi Motherboard, ATX is better

Memory Capacity

Supports up to 128GB of RAM

Connectivity

Includes Wi-Fi 7 and USB 10Gbps Type-C

Cooling Solutions

Advanced thermal management features

Overall score

ASRock AMD B850i Lightning WiFi 6E Socket AM5
78
MSI PRO B850-P WiFi Motherboard, ATX
85

Specifications

SpecASRock AMD B850i Lightning WiFi 6E Socket AM5MSI PRO B850-P WiFi Motherboard, ATX
Price$179.99$155.50
DDR5 Slots24
M.2 Slots23
Wi-Fi6E7
Power Phases10+1+112

Dimension comparison

ASRock AMD B850i Lightning WiFi 6E Socket AM5MSI PRO B850-P WiFi Motherboard, ATX

Overview

When it comes to choosing a motherboard for your AMD Ryzen 9000, 8000, or 7000 series processor, two compelling options are the ASRock AMD B850i Lightning and the MSI PRO B850-P WiFi. Priced at $179.99 and $155.50, respectively, these motherboards cater to different needs and preferences. The ASRock model is designed for compact builds, while the MSI version prioritizes extensive features for performance and connectivity.

Design and Form Factor

The ASRock AMD B850i Lightning features a Mini-ITX design, which is ideal for small form factor builds. With dimensions of 170x170mm, it is perfect for cases where space is a constraint. In contrast, the MSI PRO B850-P WiFi sports a standard ATX form factor, which allows for more expansion options and is better suited for larger builds. The difference in design impacts not only the aesthetics but also the overall flexibility in component selection. Enthusiasts should consider their case size and build preferences when choosing between these two options.

Power Delivery and Performance

The power delivery system of the ASRock AMD B850i Lightning includes a 10+1+1 phase design with a 110A Smart Power Stage, ensuring stable performance even in compact settings. On the other hand, the MSI PRO B850-P WiFi employs a more robust 12 Duet Rail Power System, designed to cater to high-performance Ryzen processors. This dual setup in the MSI motherboard can provide enhanced stability during demanding tasks like gaming or content creation. Users looking for superior power management may lean more towards the MSI option.

Memory Support

Memory performance is critical for many users, and both motherboards support DDR5 memory with overclocking capabilities. The ASRock model supports speeds of up to 8200+ MHz (OC) with its two DDR5 DIMM slots. Meanwhile, the MSI PRO B850-P WiFi offers four DDR5 DIMM slots, which can also achieve similar overclocked speeds. This means that users can install up to 128GB of RAM on the MSI board, making it more versatile for memory-intensive applications. If memory capacity and upgrade flexibility are priorities, the MSI option is the clear winner.

Storage Options

Storage capabilities differ significantly between these two motherboards. The ASRock AMD B850i Lightning includes two high-speed storage slots: one Blazing M.2 (PCIe Gen5x4) and one Hyper M.2 (PCIe Gen4x4) for maximum performance. Conversely, the MSI PRO B850-P WiFi excels with three M.2 connectors, including one M.2 Gen5 slot with EZ M.2 Shield Frozr II for thermal management. This allows for greater storage expansion and efficiency in the MSI motherboard. For users requiring extensive storage solutions, the MSI option stands out.

Connectivity Features

Both motherboards offer advanced networking options, but there are notable differences. The ASRock model includes Killer 2.5G LAN and WiFi 6E, providing fast and reliable internet connectivity. On the flip side, the MSI PRO B850-P WiFi supports Wi-Fi 7 and Bluetooth 5.4, which signifies a step toward even faster wireless communication. The inclusion of USB 10Gbps Type-C and 7.1 HD audio in the MSI board enhances its appeal for multimedia tasks. For users focused on future-proofing their connectivity, the MSI version has the edge.

Cooling Solutions

Effective cooling is essential for maintaining optimal performance in high-demand scenarios. The ASRock AMD B850i Lightning features a compact design but includes essential cooling capabilities suitable for small builds. The MSI PRO B850-P WiFi, however, incorporates advanced cooling features such as MOSFET thermal pads, extra choke thermal pads, and an Extended Heatsink, ensuring that temperatures remain in check even under heavy load. For users prioritizing effective thermal management, the MSI option provides superior cooling solutions.

Price Comparison

Price is always a consideration when investing in hardware. The ASRock AMD B850i Lightning is priced at $179.99, while the MSI PRO B850-P WiFi is available for $155.50. This makes the MSI model about 17% cheaper than its ASRock counterpart. While both motherboards offer impressive features, the MSI option provides excellent value for users looking to maximize their budget without sacrificing performance.

Which should you buy?

Ultimately, the choice between the ASRock AMD B850i Lightning and the MSI PRO B850-P WiFi comes down to individual needs. If you're seeking a compact Mini-ITX motherboard that excels in small builds with solid power delivery, the ASRock model is a great choice. However, if you require greater memory capacity, extensive storage options, and superior connectivity features at a lower price, the MSI PRO B850-P WiFi stands out as the better option. Consider your specific use case and preferences to determine which motherboard aligns best with your computing needs.