Intel Core Ultra 9 Processor 285K vs Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA
Updated August 2026 — The Intel Core Ultra 9 Processor excels in high-performance tasks and memory support, while the Intel Core i5-9400 offers great value for everyday use.
The Intel Core Ultra 9 Processor excels in high-performance tasks and memory support, while the Intel Core i5-9400 offers great value for everyday use.
Why Intel Core Ultra 9 Processor 285K is better
Performance
Higher base power of 125 W for demanding applications.
Memory Support
Supports up to 256 GB of memory.
Target Market
Designed for high-performance scenarios.
Why Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA is better
Price
Significantly lower price at C$209.89.
Turbo Boost
Can reach up to 4.10 GHz for burst performance.
Integrated Graphics
Includes Intel UHD Graphics 630 for basic tasks.
Overall score
Specifications
| Spec | Intel Core Ultra 9 Processor 285K | Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA |
|---|---|---|
| Brand | Intel | Intel |
| Processor Type | Ultra 9 | i5-9400 |
| Base Frequency | N/A | 2.90 GHz |
| Cache Size | N/A | 9 MB |
| Graphics | N/A | Intel UHD 630 |
Dimension comparison
Overview of the Products
In this comparison, we will examine the Intel Core Ultra 9 Processor 285K and the Intel Core i5-9400 Desktop Processor. The Intel Core Ultra 9 Processor is priced at C$896.25, while the Intel Core i5-9400 comes in significantly cheaper at C$209.89. These two processors cater to different segments of the computing market, with distinct specifications and capabilities.
Performance Capabilities
The Intel Core Ultra 9 Processor boasts a robust base power of 125 W, indicating a performance-oriented design suitable for demanding applications. In contrast, the Intel Core i5-9400 features 6 cores and a base frequency of 2.90 GHz, which can turbo boost up to 4.10 GHz. This makes the i5-9400 a solid choice for mid-range tasks and gaming. However, the Ultra 9 is positioned for high-performance scenarios, making it more suitable for heavy multitasking and intensive workloads.
Memory Support
When it comes to memory support, the Intel Core Ultra 9 Processor stands out with a maximum memory size of 256 GB. This allows for extensive multitasking and is ideal for users who require high memory capacity, such as video editors and 3D modelers. On the other hand, the Intel Core i5-9400, while not specified, generally supports less memory, making it more appropriate for everyday computing tasks rather than memory-intensive applications.
Core and Thread Count
The Intel Core Ultra 9 Processor is designed for high performance, but specific core and thread counts are not provided. The Intel Core i5-9400, however, features 6 cores and 6 threads, indicating its capability to handle multiple tasks simultaneously. This makes it suitable for gamers and general users who need reliable processing power without the higher costs associated with premium processors.
Turbo Boost Technology
Turbo boost technology is a critical feature for enhancing performance. The Intel Core i5-9400 can reach a maximum turbo frequency of 4.10 GHz, which allows it to handle bursts of high-demand tasks efficiently. The Intel Core Ultra 9 Processor lacks specified turbo capabilities in the provided data, which may indicate a more consistent performance rather than variable boosts. For users prioritizing peak performance in short bursts, the i5-9400 could be the better option.
Graphics Capabilities
The Intel Core i5-9400 comes with integrated Intel UHD Graphics 630, which provides adequate performance for standard graphical tasks such as video playback and casual gaming. Unfortunately, the Intel Core Ultra 9 Processor does not provide any information regarding integrated graphics, which may require users to invest in a separate graphics card for visual tasks. This could add to the overall cost for those considering the Ultra 9.
Compatibility and Chipset
Compatibility is an important factor when selecting a processor. The Intel Core i5-9400 is specifically compatible with motherboards based on Intel 300 Series chipsets. This makes it easier for users to find compatible components for their builds. In contrast, the Intel Core Ultra 9 Processor does not include any compatibility details, which could pose a challenge for users who are assembling a new system or upgrading existing hardware.
Price Considerations
Price is a significant factor when evaluating processors. The Intel Core Ultra 9 Processor is priced at C$896.25, which reflects its high-performance capabilities and target market. Conversely, the Intel Core i5-9400 is much more budget-friendly at C$209.89, making it accessible for users who need reliable performance without breaking the bank. For those on a budget or new to PC building, the i5-9400 presents a compelling value proposition.
Which should you buy?
Choosing between the Intel Core Ultra 9 Processor and the Intel Core i5-9400 depends largely on your specific needs and budget. If you require a processor for high-performance tasks, extensive memory support, and are willing to invest more, the Intel Core Ultra 9 Processor is the way to go. However, if you are looking for a cost-effective solution for everyday computing, gaming, and moderate multitasking, the Intel Core i5-9400 offers excellent performance at a significantly lower price.
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