Intel Core Ultra 9 Processor 285 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 285 is a superior choice for high-performance tasks, while the Intel Core i5-9400 is more budget-friendly for everyday use.
The Intel Core Ultra 9 Processor 285 is a superior choice for high-performance tasks, while the Intel Core i5-9400 is more budget-friendly for everyday use.
Why Intel Core Ultra 9 Processor 285 is better
Core Count
Ultra 9 has 24 cores vs i5-9400's 6 cores
Memory Support
Ultra 9 supports up to 256 GB of RAM
Performance
Ultra 9 is designed for high-performance applications
Why Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA is better
Price
i5-9400 is significantly cheaper at C$209.89
Integrated Graphics
i5-9400 includes Intel UHD Graphics 630
Power Consumption
i5-9400 generally consumes less power under light loads
Overall score
Specifications
| Spec | Intel Core Ultra 9 Processor 285 | Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA |
|---|---|---|
| Brand | Intel | Intel |
| Base Power | 65 W | N/A |
| Cache Size | N/A | 9 MB |
| Graphics | N/A | Intel UHD Graphics 630 |
| Socket Type | LGA 1851 | LGA 1151 |
Dimension comparison
Price Comparison
The Intel Core Ultra 9 Processor 285 is significantly more expensive than the Intel Core i5-9400, priced at C$946.08 compared to C$209.89. This stark difference of C$736.19 reflects the advanced capabilities of the Ultra 9, which targets high-performance users such as gamers and professionals. While the i5-9400 offers solid performance for everyday computing tasks at a budget-friendly price, the Ultra 9’s cost aligns with its enhanced features, making it a premium option for those who require superior processing power.
Core and Thread Count
The Intel Core Ultra 9 Processor 285 boasts an impressive 24 cores, whereas the Intel Core i5-9400 features only 6 cores. This substantial difference in core count means that the Ultra 9 can handle more simultaneous tasks, making it ideal for intensive applications like video editing and 3D rendering. The i5-9400, with its 6 cores and 6 threads, is adequate for general tasks such as web browsing, office applications, and light gaming but may struggle under heavier workloads. Thus, the choice between them largely depends on the intended usage.
Base and Turbo Frequencies
In terms of base and turbo frequencies, the Intel Core i5-9400 operates at a base frequency of 2.90 GHz, which can boost up to 4.10 GHz. The Ultra 9, however, does not specify its base frequency but utilizes a hybrid architecture that combines high-performance cores with efficient cores to optimise performance dynamically. The i5-9400's turbo capability may provide advantages in single-threaded tasks, but the Ultra 9’s architecture is designed for multitasking and demanding applications, making it superior in scenarios requiring sustained performance.
Power Efficiency
The Intel Core Ultra 9 Processor 285 has a base power of 65 W, which is quite efficient for a processor of its performance level. In comparison, the power efficiency of the Intel Core i5-9400 is not explicitly mentioned, but it is generally lower in high-demand situations due to its fewer cores. The Ultra 9’s design focuses on balancing power consumption with performance, making it a more sustainable choice for users who run resource-intensive applications regularly. Therefore, if energy efficiency alongside high performance is a priority, the Ultra 9 stands out.
Memory Support
The Intel Core Ultra 9 Processor 285 supports a maximum memory size of 256 GB, which allows for extensive multitasking and running memory-heavy applications. This is particularly beneficial for content creators and professionals handling large datasets or engaging in heavy video production. On the other hand, the Intel Core i5-9400 is more limited in this regard, as it does not specify maximum memory support in the provided details. Thus, for users who anticipate needing vast amounts of RAM, the Ultra 9 is a clear winner.
Integrated Graphics
The Intel Core i5-9400 includes integrated Intel UHD Graphics 630, which can be beneficial for casual gaming and media consumption without needing a dedicated graphics card. The Intel Core Ultra 9 does not explicitly mention integrated graphics capabilities, focusing instead on its powerful cores designed for high-performance tasks. Users who plan to use their CPU for casual gaming or multimedia may find the i5-9400 more appealing due to its built-in graphics, while those needing raw processing power might prefer the Ultra 9.
Target Audience
The Intel Core Ultra 9 Processor 285 is aimed at high-end users, including gamers, content creators, and professionals requiring top-tier performance. Its robust architecture and higher price point cater to those looking to push their systems to the limit. Conversely, the Intel Core i5-9400 targets budget-conscious users who require dependable performance for everyday tasks without the need for extreme processing power. Understanding these distinctions will help consumers decide based on their specific needs and budget.
Which should you buy?
Choosing between the Intel Core Ultra 9 Processor 285 and the Intel Core i5-9400 ultimately hinges on your specific needs and budget. If you require high performance for gaming, content creation, or multitasking, the Intel Core Ultra 9, with its 24 cores and 256 GB memory support, is the clear choice, albeit at a higher price of C$946.08. However, if you are looking for a cost-effective solution for general tasks, the Intel Core i5-9400 offers solid performance at a mere C$209.89. Therefore, assess your workload requirements and budget to make the best decision.
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