Intel® Core™ i9-13900KF Desktop Processor 24 cores vs INTEL Core Ultra 9 285K 5.7GHz FCLGA18W
Updated August 2026 — The Intel Core i9-13900KF offers better multi-core performance and value, while the Core Ultra 9 285K excels in clock speed and newer chipset compatibility.
The Intel Core i9-13900KF offers better multi-core performance and value, while the Core Ultra 9 285K excels in clock speed and newer chipset compatibility.
Why Intel® Core™ i9-13900KF Desktop Processor 24 cores is better
Core Count
24 cores vs undisclosed cores
Price
£415.99 vs £475.00
Chipset Compatibility
Supports 600 & 700 Series vs only 800 Series
Why INTEL Core Ultra 9 285K 5.7GHz FCLGA18W is better
Clock Speed
5.7GHz vs unspecified max clock
DDR5 Support
DDR5 only vs DDR5 & DDR4
Thermal Design
Newer architecture may improve cooling
Overall score
Specifications
| Spec | Intel® Core™ i9-13900KF Desktop Processor 24 cores | INTEL Core Ultra 9 285K 5.7GHz FCLGA18W |
|---|---|---|
| Cores | 24 | Not disclosed |
| Max Clock | Not specified | 5.7 GHz |
| Price | £415.99 | £475.00 |
| Chipset | 600 & 700 Series | 800 Series |
| Graphics | No integrated graphics | No integrated graphics |
| Power | 125W | 125W |
| DDR Support | DDR4 & DDR5 | DDR5 only |
Dimension comparison
Overview of the Processors
The Intel® Core™ i9-13900KF and the INTEL Core Ultra 9 285K are both high-performance desktop processors designed for gamers and creators. The i9-13900KF is priced at £415.99, while the Core Ultra 9 285K is more expensive at £475.00. This pricing indicates a potential difference in capabilities and features that could influence your purchasing decision.
Both processors target the enthusiast market, featuring cutting-edge technology meant to optimise performance for demanding tasks. The i9-13900KF boasts 24 cores, which is a significant factor in its performance capabilities. In contrast, the Ultra 9 285K focuses on its high clock speed of 5.7GHz, appealing to those who require rapid processing for their applications.
Performance and Cores
The Intel® Core™ i9-13900KF features an impressive 24 cores, which enhances its ability to perform multiple tasks simultaneously. This core count suggests that it could handle heavy workloads, such as gaming while streaming or running multiple applications at once, with ease.
On the other hand, the INTEL Core Ultra 9 285K, while not disclosing its core count, makes up for this with a high clock speed of 5.7GHz. This speed is beneficial for tasks that require swift processing over multi-threaded performance. Depending on the nature of your work or gaming, this could make the Ultra 9 285K a compelling option for users prioritising clock speed over core count.
Graphics Capability
The Intel® Core™ i9-13900KF does not feature integrated graphics, which means users will need to invest in a discrete graphics card. This could be a disadvantage for those who prefer an all-in-one solution or are looking to build a system with fewer components.
In contrast, the INTEL Core Ultra 9 285K also lacks integrated graphics but is designed for high-performance graphics, especially when paired with the right GPU. The requirement for a discrete graphics solution is a similarity between both processors, making them suitable for users who are looking to maximise their system's graphical capabilities.
Compatibility and Chipset
When it comes to compatibility, the Intel® Core™ i9-13900KF is compatible with both Intel 700 Series and 600 Series Chipset based motherboards. This flexibility allows users to upgrade their systems without needing to purchase a new motherboard if they already have a compatible one.
The INTEL Core Ultra 9 285K is compatible exclusively with Intel 800 Series Chipset based motherboards. This narrower compatibility may limit upgrade options for users who do not already possess an 800 Series motherboard, potentially adding to the overall cost of building a system around this processor.
Thermal Management
Both processors share a Processor Base Power rating of 125W, indicating that they are similarly power-hungry and will likely require adequate cooling solutions to maintain optimal performance. The Intel® Core™ i9-13900KF does not come with a thermal solution included in the box, meaning users will need to budget for an aftermarket cooler.
The INTEL Core Ultra 9 285K, while also requiring effective thermal management, may benefit from advancements in thermal design, given its newer architecture. Users must consider the cooling requirements for both processors to ensure they operate efficiently under load.
Target Audience
The Intel® Core™ i9-13900KF is aimed primarily at serious gamers and content creators who need powerful processing capabilities for multitasking and rendering. Its core count suggests a focus on parallel processing, which is essential for high-end gaming and professional applications.
Conversely, the INTEL Core Ultra 9 285K is also targeted at the same demographic but with a slightly different emphasis on clock speed and performance per core. This may appeal to users who prioritise single-threaded performance, such as those involved in specific gaming genres or applications that do not leverage multiple cores effectively.
Price Comparison
The price difference between the two processors is significant, with the Intel® Core™ i9-13900KF retailing for £415.99 and the INTEL Core Ultra 9 285K priced at £475.00. This £59.01 gap may influence budget-conscious buyers, especially considering that both processors share similar power ratings and target audiences.
The higher price of the Ultra 9 285K could be justified if its performance characteristics align more closely with a user's specific needs. However, for those looking for raw multi-core performance, the i9-13900KF may provide better value for money.
Which should you buy?
In conclusion, choosing between the Intel® Core™ i9-13900KF and the INTEL Core Ultra 9 285K ultimately depends on your specific needs and budget. If you require a processor with a greater core count for multitasking and parallel processing, the i9-13900KF is the better option at a more affordable price. However, if you prioritise clock speed for specific applications and are willing to invest more, the Ultra 9 285K could be worth considering. Each processor has its strengths, making it essential to evaluate your intended use case before making a decision.
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