ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 vs ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini
Updated August 2026 — ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini leads on user features and performance.
The ASRock B550M-ITX/AC is a budget-friendly option for gamers, while the ASRock Intel Core Ultra Z890 offers advanced features for high-performance computing. Choose based on your processor preference and performance needs.
Why ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 is better
Price
B550M-ITX/AC is significantly cheaper at $109.99.
Compatibility
Supports a wider range of AMD Ryzen processors.
Audio
7.1 channel HD audio is adequate for gaming.
Why ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini is better
Performance
Supports DDR5 memory with speeds up to 9466 MHz.
Power Phase
12+1+1+1+1 power phase for better stability.
Connectivity
Includes Thunderbolt 4 Type-C ports for advanced connectivity.
Overall score
Specifications
| Spec | ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 | ASRock Intel Core Ultra Z890 LGA1851 RL-ILM Mini |
|---|---|---|
| Processor Support | AMD Ryzen 3000/5000 | Intel Core Ultra |
| Memory Type | DDR4 | DDR5 |
| Graphics Output | HDMI, DisplayPort | HDMI, Thunderbolt 4 |
| Audio Codec | Realtek ALC887 | Not specified |
| Overclocking | Yes | Yes |
Dimension comparison
Overview of the ASRock B550M-ITX/AC and ASRock Intel Core Ultra Z890
The ASRock B550M-ITX/AC is priced at $109.99, making it a budget-friendly option for users looking to build a compact system. In contrast, the ASRock Intel Core Ultra Z890 is priced at $249.99, which is about 127% more expensive. This significant price difference reflects the advanced features and capabilities designed for high-performance computing.
The B550M-ITX/AC supports AMD's AM4 socket and is optimized for Ryzen 3000 and 5000 series processors, while the Intel Core Ultra Z890 is tailored for the latest Intel Core Ultra processors with a LGA1851 socket. Depending on your processor preference, each motherboard offers unique advantages that cater to different user needs.
Performance Capabilities
The B550M-ITX/AC is built for gamers and overclocking enthusiasts, offering smooth power delivery and enhanced performance at lower temperatures. It supports DDR4 memory speeds of up to 4733 MHz and includes essential graphics output options like DisplayPort and HDMI. This motherboard is particularly suited for users who want a solid foundation for gaming without breaking the bank.
On the other hand, the Intel Core Ultra Z890 is packed with features aimed at maximizing stability and efficiency. It boasts a robust 12+1+1+1+1 power phase configuration with a 110A SPS for VCore, ensuring reliable performance under heavy workloads. Additionally, it supports DDR5 memory with speeds reaching up to 9466 MHz, which can greatly enhance overall system performance, especially in memory-intensive applications.
Compatibility with Processors
When it comes to processor compatibility, the B550M-ITX/AC is designed specifically for AMD users. It supports a wide range of Ryzen processors, including the 3000, 4000, and 5000 series, but it does not support AMD Athlon processors. This motherboard is an excellent choice for those invested in the AMD ecosystem.
In contrast, the Intel Core Ultra Z890 exclusively supports Intel Core Ultra processors (Series 2) with the LGA1851 socket. This makes it ideal for users who prefer Intel’s architecture and want to leverage the latest advancements in performance and efficiency. If you have a specific processor in mind, your choice of motherboard will hinge on that decision.
Memory Support
Memory support is another crucial distinction between the two motherboards. The B550M-ITX/AC supports DDR4 memory, which is a solid performer for most gaming and general usage scenarios. However, it is limited to speeds of up to 4733 MHz (overclocked). For gamers and casual users, this is typically sufficient to achieve good performance.
Conversely, the Intel Core Ultra Z890 takes memory performance to the next level with support for DDR5 memory. This motherboard not only supports dual-channel memory configurations but can also handle overclocking speeds of up to 9466 MHz. This feature is particularly beneficial for users engaged in high-performance tasks like gaming, video editing, or data processing, making it a more future-proof option.
Graphics Output Options
In terms of graphics output, the B550M-ITX/AC includes both DisplayPort and HDMI ports, providing flexibility for connecting to various displays. This is particularly useful for users who want to set up multiple monitors or require high-definition output for gaming.
Meanwhile, the Intel Core Ultra Z890 offers a more advanced selection of graphics output options, including one HDMI and two Thunderbolt 4 Type-C ports. Thunderbolt 4 connectivity enables faster data transfer rates and the ability to connect to a wider range of peripherals, making it a superior choice for users who need cutting-edge connectivity.
Audio Experience
The audio capabilities of the B550M-ITX/AC are powered by the Realtek ALC887 audio codec, delivering 7.1 channel HD audio. This is adequate for gaming and general multimedia tasks, providing a satisfactory audio experience for most users.
In contrast, while the product data does not specify the audio features of the Intel Core Ultra Z890, its focus on robust performance and stability suggests that it is also equipped to handle high-quality audio output. Users will likely find that both motherboards provide a satisfactory audio experience, depending on their specific needs and setups.
Design and Aesthetics
The design of the B550M-ITX/AC leans towards a more utilitarian approach, focusing on functionality while maintaining a compact form factor ideal for mini ITX builds. Its sturdy components ensure durability, especially for gaming applications.
The Intel Core Ultra Z890, marketed under the Phantom Gaming brand, features a more streamlined and visually appealing design. This motherboard is optimized for those who value aesthetics in their builds, making it attractive for users who want a stylish yet powerful system.
Which should you buy?
Ultimately, the choice between the ASRock B550M-ITX/AC and the ASRock Intel Core Ultra Z890 depends on your specific needs and budget. The B550M-ITX/AC is a fantastic choice for budget-conscious gamers who are already invested in the AMD ecosystem. Priced at $109.99, it delivers solid performance without overspending.
On the other hand, the Intel Core Ultra Z890, priced at $249.99, offers cutting-edge features and superior performance capabilities, especially for users looking to harness the power of the latest Intel processors. Its advanced memory support and connectivity options make it a worthwhile investment for those aiming for high-end performance. Choose wisely based on your processor preference and performance requirements!

