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ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini vs ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851

Updated August 2026 — ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini wins on power and memory, ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 wins on thermals and design.

The ASRock Intel Core Ultra Z890 excels in power delivery and memory support, while the ASUS ROG STRIX B860-I offers better thermal management and gaming features. Choose based on your specific needs.

Why ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini is better

Power Delivery

ASRock has a superior 12+1+1+1+1 power phase design.

Memory Support

Supports overclocking up to 9466+ MHz.

Price

Higher performance at a slightly higher price.

Why ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 is better

Thermal Management

ASUS features a robust thermal design.

AI Features

Designed for advanced AI applications.

Connectivity

Offers 2.5G LAN and USB Type-C.

Overall score

ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini
85
ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851
78

Specifications

SpecASRock Intel Core Ultra Z890 LGA1851 RL-ILM MiniASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851
SocketLGA 1851LGA 1851
Power Phases12+1+1+1+110+1+2+1
Max Memory9466+ MHzNot specified
WiFiWiFi 7WiFi 7
Thunderbolt2x Thunderbolt 4Thunderbolt 4

Dimension comparison

ASRock Intel Core Ultra Z890 LGA1851 RL-ILM MiniASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851

Overview of the ASRock Intel Core Ultra Z890 and ASUS ROG STRIX B860-I

The ASRock Intel Core Ultra Z890 is priced at $249.99, while the ASUS ROG STRIX B860-I is available for $207.99, making the ASUS motherboard about 17% cheaper. Both motherboards are designed for the Intel LGA 1851 socket and cater to high-performance needs, but they differ significantly in features and intended use.

The ASRock model emphasizes stability, durability, and efficiency, making it an optimal choice for daily computing. On the other hand, the ASUS motherboard is tailored for advanced AI applications and gaming, integrating features that enhance connectivity and performance.

Performance and Power Delivery

When it comes to performance, the ASRock Intel Core Ultra Z890 boasts a robust 12+1+1+1+1 power phase design with a capacity for 110A SPS for VCore. This configuration is intended to ensure stable power delivery, especially when overclocking. In contrast, the ASUS ROG STRIX B860-I features a 10+1+2+1 power stage setup, with each stage rated at 80A. This design is optimized for both gaming and AI-driven applications, making it highly efficient in demanding scenarios.

The superior power delivery of the ASRock model might appeal to users who prioritize overclocking and stability under heavy loads. However, for those focused on gaming and AI tasks, the ASUS provides adequate power management without sacrificing performance, positioning itself as a versatile choice in the market.

Connectivity Options

Connectivity is a crucial aspect for modern motherboards, and both models offer advanced features. The ASRock Intel Core Ultra Z890 includes a variety of output options: 1 HDMI and 2 Thunderbolt 4 Type-C ports, facilitating high-speed data transfer and connectivity to multiple devices. Conversely, the ASUS ROG STRIX B860-I offers Thunderbolt 4 support along with USB Type-C and 2.5G LAN, ensuring high-speed networking and versatile connectivity.

While both motherboards provide cutting-edge connectivity options, the ASRock’s inclusion of two Thunderbolt ports may provide a slight edge for multitaskers and users with multiple high-speed devices. The ASUS, however, emphasizes its gaming capabilities and AI readiness, appealing to a different user demographic.

Memory Support and Overclocking

The ASRock Intel Core Ultra Z890 supports dual-channel memory configurations with up to 9466+ MHz through overclocking. This high memory speed can significantly enhance performance in memory-intensive applications. The ASUS ROG STRIX B860-I also supports DDR5 memory, although the specifics regarding maximum speeds are not highlighted.

For users seeking to maximize memory performance, the ASRock motherboard offers a clearer advantage with its explicit support for high-frequency RAM. However, the ASUS has incorporated exclusive AI technologies to optimize memory management, potentially offering competitive performance through intelligent enhancements rather than raw speed.

Design and Aesthetics

Both motherboards feature sleek designs suitable for modern builds, but they cater to different aesthetics. The ASRock Intel Core Ultra Z890 features a minimalist design that emphasizes functionality, while the ASUS ROG STRIX B860-I is designed with gamers in mind, showcasing a more aggressive look with RGB lighting and a robust thermal design.

The choice between these two designs ultimately depends on personal preference and the intended build. Gamers might lean towards the ASUS for its visually striking design and gaming-centric features, while those looking for a more understated approach may prefer the ASRock model.

Thermal Management

Thermal management is essential for maintaining performance, especially in compact Mini-ITX builds. The ASUS ROG STRIX B860-I excels in this area with its optimized thermal design, featuring massive heatsinks, high-conductivity thermal pads, and an L-shaped heatpipe for efficient heat dissipation. The ASRock Intel Core Ultra Z890 also supports effective cooling solutions, but specific details regarding its thermal management are less emphasized.

In scenarios where heat management is critical, the ASUS provides a more comprehensive solution, making it a potentially better choice for users who plan to push their systems hard, especially during gaming sessions or intensive tasks.

Target Audience and Use Cases

The ASRock Intel Core Ultra Z890 targets users looking for stability and reliability in daily computing tasks, making it suitable for general productivity and moderate gaming. Its robust power design and memory support make it ideal for users who may wish to overclock or run demanding applications.

Conversely, the ASUS ROG STRIX B860-I is clearly aimed at the gaming and AI market, with features designed to enhance performance in these areas. Its advanced connectivity options and AI readiness suggest it is best suited for users who require high-speed performance and are likely to utilize cutting-edge technologies.

Which should you buy?

Choosing between the ASRock Intel Core Ultra Z890 and the ASUS ROG STRIX B860-I ultimately depends on your specific needs and budget. The ASRock offers superior power delivery and memory support, making it a solid choice for users focused on stability and performance. However, priced at $207.99, the ASUS motherboard provides excellent value for gamers and those interested in AI applications, featuring advanced connectivity and thermal management.

If you prioritize overclocking and raw performance, the ASRock might be the better option. However, if you are looking for a future-proof motherboard with a focus on gaming and advanced technology, the ASUS ROG STRIX B860-I stands out as the more appealing choice.