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Intel® Core™ i5-11400 Desktop Processor 6 Cores up vs Intel® Core™ Ultra 9 Desktop Processor 285 24

Updated August 2026 — full head-to-head comparison.

Price Comparison

The Intel® Core™ i5-11400 is priced at $186.00, making it about 67% cheaper than the Intel® Core™ Ultra 9 Desktop Processor 285, which retails for $569.91. This significant price difference reflects the distinct target audiences for each processor. The i5-11400 is designed for budget-conscious users who still require solid performance for gaming and productivity tasks, while the Ultra 9 is aimed at enthusiasts and professionals demanding maximum performance. If cost is a primary factor, the i5-11400 certainly stands out as the more economical choice.

Core Count and Performance

The Intel® Core™ Ultra 9 boasts an impressive 24 cores, divided into 8 Performance-cores and 16 Efficient-cores, compared to the i5-11400's 6 cores. This stark difference in core count allows the Ultra 9 to handle significantly more simultaneous tasks, making it ideal for demanding applications like video editing and 3D rendering. The Ultra 9 can reach speeds of up to 5.6 GHz, while the i5-11400 tops out at 4.4 GHz. Users who frequently engage in multitasking or resource-intensive activities will find the Ultra 9's architecture and speed more suitable for their needs.

Cache Size

The cache size of a processor can greatly influence its performance, especially in data-heavy tasks. The Intel® Core™ Ultra 9 features a substantial 40 MB cache, compared to the 12 MB offered by the i5-11400. This larger cache allows the Ultra 9 to retrieve frequently used data more quickly, enhancing overall system responsiveness. While the i5-11400's cache is sufficient for general computing and gaming, users who require peak performance in data-heavy applications will benefit from the Ultra 9's superior cache capacity.

Integrated Graphics

Both processors come with integrated graphics, but they cater to different user needs. The Intel® Core™ i5-11400 incorporates Intel UHD Graphics 730, providing decent graphics performance for casual gaming and multimedia tasks. In contrast, the Ultra 9 also includes integrated graphics, but it's optimized for high-performance gaming and content creation. While both integrated graphics solutions eliminate the need for a dedicated GPU for basic tasks, the Ultra 9’s graphics capabilities are better suited for demanding applications and gaming at higher settings.

Compatibility

Compatibility with motherboards is another crucial aspect to consider. The Intel® Core™ i5-11400 is compatible with Intel 500 Series and select 400 Series chipsets, making it versatile for various builds. Meanwhile, the Intel® Core™ Ultra 9 requires a motherboard compatible with the newer Intel 800 Series chipset. This difference can impact your upgrade options or the overall cost of your system build, as you may need to invest in a new motherboard to accommodate the Ultra 9. For users looking to upgrade an existing system without changing their motherboard, the i5-11400 may be the more convenient choice.

Power Consumption

Power consumption is an important consideration for many users. Both processors have a base power of 65W, indicating that they are designed to be efficient in terms of energy use. However, the Ultra 9's advanced performance features may lead to higher power draw during intensive tasks, compared to the i5-11400, which is optimized for balanced performance and power efficiency. Users looking to build a power-efficient system may find the i5-11400 more appealing, especially in scenarios where every watt counts.

Target Audience

The target audience for each processor is distinct. The Intel® Core™ i5-11400 is ideal for casual gamers and everyday users who need reliable performance without breaking the bank. It's an excellent choice for those who prioritize affordability over extreme performance. On the other hand, the Intel® Core™ Ultra 9 is tailored for high-end users such as gamers, content creators, and professionals who demand the best performance for complex applications. The Ultra 9’s higher core count and speeds cater specifically to those who require cutting-edge technology for intensive tasks.

Which should you buy?

Choosing between the Intel® Core™ i5-11400 and the Intel® Core™ Ultra 9 ultimately depends on your specific needs and budget. If you're looking for a budget-friendly option that delivers solid performance for gaming and productivity, the i5-11400 at $186.00 is a compelling choice. However, if you're an enthusiast or a professional who requires top-tier performance for demanding tasks and are willing to invest significantly more, the Ultra 9 at $569.91 might be worth the cost for its superior capabilities. Consider your performance needs, budget constraints, and potential future upgrades when making your decision.