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ASRock AMD B850i Lightning WiFi 6E Socket AM5 vs ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX

Updated August 2026 — ASRock AMD B850i Lightning WiFi 6E Socket AM5 wins on price and form factor, ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX wins on connectivity and expansion.

The ASRock AMD B850i Lightning offers a budget-friendly option with solid performance, while the ASUS PRIME Z890-P excels in advanced features and connectivity.

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

Price

ASRock is $50 cheaper

Compact Design

Mini-ITX form factor for small builds

Memory Speed

Supports up to 8200+ MHz

Why ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX is better

Connectivity

Includes Thunderbolt 4 USB Type-C

Expansion

Four M.2 slots for storage

Cooling

Optimized thermal design with VRM heatsinks

Overall score

ASRock AMD B850i Lightning WiFi 6E Socket AM5
78
ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX
85

Specifications

SpecASRock AMD B850i Lightning WiFi 6E Socket AM5ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX
SocketAM5LGA 1851
Memory SupportDDR5 up to 8200+ MHzDDR5
M.2 Slots24
WiFiWiFi 6EWiFi 7
Power Stages10+1+114+1+1+2

Dimension comparison

ASRock AMD B850i Lightning WiFi 6E Socket AM5ASUS PRIME Z890-P WIFI Z890 LGA 1851 ATX

Price Comparison

The ASRock AMD B850i Lightning is priced at $179.99, making it about 22% cheaper than the ASUS PRIME Z890-P, which retails for $229.99. This price difference of $50 could be a significant factor for budget-conscious consumers. While both motherboards cater to high-performance builds, the ASRock offers a compelling entry point for those looking to build a powerful gaming or workstation PC without breaking the bank.

Form Factor and Design

The ASRock AMD B850i Lightning features a Mini-ITX design, which is ideal for compact builds, measuring 170x170mm. This makes it suitable for users who prefer smaller cases or limited space setups. In contrast, the ASUS PRIME Z890-P adopts a larger ATX form factor, which allows for more expansion slots and components. However, this size may not be appealing to those aiming for a minimalist or space-efficient design. The choice of form factor heavily influences the overall build aesthetics and space utilization in your setup.

Performance Capabilities

When it comes to performance, both motherboards are designed to support high-speed components. The ASRock motherboard supports AMD Ryzen 9000/8000/7000 series processors and has a memory support of up to 8200+ MHz with its two DDR5 DIMM slots. Meanwhile, the ASUS PRIME Z890-P is ready for Intel’s Core Ultra Processors (series 2) and also supports DDR5 memory, but with added features like advanced AI for performance optimization. The ASUS board's robust 14+1+1+2 power stage design ensures stable power delivery, which can be crucial for high-performance tasks and gaming.

Connectivity Options

The ASUS PRIME Z890-P offers superior connectivity options with its Thunderbolt 4 USB Type-C port, a feature not present on the ASRock motherboard. This allows for faster data transfer and the ability to connect multiple devices seamlessly. On the other hand, the ASRock provides dual ultra-fast storage options with M.2 slots, including one PCIe 5.0 slot, appealing to users who prioritize storage performance. Both motherboards include advanced networking features, with the ASRock featuring Killer 2.5G LAN and WiFi 6E, while the ASUS has onboard Wi-Fi 7 and 2.5Gb Ethernet, catering to high-speed internet needs.

Expansion Capabilities

In terms of expansion, the ASUS PRIME Z890-P excels with four M.2 slots, including one PCIe 5.0, allowing for ample storage options and flexibility for future upgrades. The ASRock, while it does include two M.2 slots, is limited compared to its competitor. This difference in expansion capabilities could influence users who anticipate needing additional storage or enhanced performance through multiple SSDs. For gamers and professionals alike, the ability to expand and upgrade is a key consideration.

Cooling Solutions

The ASUS PRIME Z890-P is designed with an optimized thermal solution, featuring large VRM heatsinks and dedicated cooling for M.2 slots. This ensures that high-performance components remain cool under load, which is crucial for maintaining performance during extended gaming or heavy computational tasks. The ASRock motherboard, while it boasts a premium power delivery system, does not highlight specific cooling features to the same extent. Users seeking superior thermal management may prefer the ASUS for its more robust cooling capabilities.

Target Audience

The ASRock AMD B850i Lightning is aimed at users looking for a compact, efficient solution for AMD builds, particularly in small form factor PCs. Its price point makes it appealing to gamers and casual users who want a solid performance without unnecessary bells and whistles. Conversely, the ASUS PRIME Z890-P is designed for enthusiasts and professionals who require advanced features and flexibility, making it ideal for high-end gaming rigs or AI computing setups. The choice between these motherboards will largely depend on the specific needs and budgets of the users.

Which should you buy?

Ultimately, the decision between the ASRock AMD B850i Lightning and the ASUS PRIME Z890-P comes down to your specific needs and preferences. If you're looking for a more budget-friendly option that still delivers solid performance, the ASRock is a great choice at $179.99. However, if you require advanced features, better thermal management, and superior connectivity, the ASUS at $229.99 may be worth the extra investment. Both motherboards cater to different segments of the market, ensuring that users can find a suitable option based on their requirements.