Intel® Core™ Ultra 5 Processor 250K Plus 18 cores 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 5 Processor 250K Plus outperforms the Intel Core i5-9400 in almost every aspect, making it the better choice for high-performance needs.
The Intel® Core™ Ultra 5 Processor 250K Plus outperforms the Intel Core i5-9400 in almost every aspect, making it the better choice for high-performance needs.
Why Intel® Core™ Ultra 5 Processor 250K Plus 18 cores is better
core count
Ultra 5 has 18 cores vs i5-9400's 6 cores
clock speed
Ultra 5 reaches 5.5 GHz vs i5-9400's 4.1 GHz
platform support
Ultra 5 supports PCIe 5.0 vs i5-9400's PCIe 3.0
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 C$209.89 vs Ultra 5's C$332.99
energy efficiency
i5-9400 has lower power consumption
integrated graphics
i5-9400 includes Intel UHD Graphics 630
Overall score
Specifications
| Spec | Intel® Core™ Ultra 5 Processor 250K Plus 18 cores | Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA |
|---|---|---|
| Cores | 18 | 6 |
| Max Turbo | 5.5 GHz | 4.1 GHz |
| Base Power | 125W | 65W |
| Max Turbo Power | 250W | 95W |
| Price | C$332.99 | C$209.89 |
Dimension comparison
Overview of the Products
When comparing the Intel® Core™ Ultra 5 Processor 250K Plus and the Intel Core i5-9400 Desktop Processor, the stark differences in their specifications and pricing come into focus. The Intel® Core™ Ultra 5 is priced at C$332.99, while the Intel Core i5-9400 is more budget-friendly at C$209.89. This price difference indicates the Ultra 5’s advanced capabilities, which cater to high-demand users, while the i5-9400 offers solid performance for everyday computing needs.
Core Architecture
The Intel® Core™ Ultra 5 features an impressive 18 cores, consisting of a combination of 8 performance cores and 16 efficiency cores, designed for high-performance tasks. This configuration allows for exceptional multitasking and gaming capabilities. In contrast, the Intel Core i5-9400 has only 6 cores, which limits its ability to handle multiple demanding applications simultaneously. The disparity in core count is significant, with the Ultra 5 offering three times as many cores, making it a better choice for power users.
Clock Speed and Performance
Performance metrics reveal that the Intel® Core™ Ultra 5 can reach turbo frequencies of up to 5.5 GHz, providing top-tier responsiveness for intense tasks. This is considerably higher than the Intel Core i5-9400, which has a maximum turbo frequency of 4.1 GHz. The Ultra 5’s ability to achieve higher clock speeds means it can deliver faster processing times, which is a crucial factor for gamers and creators who require rapid performance.
Platform Compatibility
The Intel® Core™ Ultra 5 is compatible with Intel's 800 Series Chipset-based motherboards, supporting advanced features such as PCIe 5.0 and high-speed DDR5 memory, with speeds reaching up to 7200 MT/s. This modern architecture is ideal for users looking to future-proof their systems. On the other hand, the Intel Core i5-9400 is limited to compatibility with Intel 300 Series chipsets, which restricts its upgrade potential and performance capabilities, particularly for those looking to leverage more recent technologies.
Thermal and Power Design
Thermal management is another area where the Intel® Core™ Ultra 5 excels, with a robust power design featuring a base power of 125W and a maximum turbo power of 250W. This ensures that the processor can sustain high-intensity tasks without overheating. Conversely, the Intel Core i5-9400 has a lower power profile, which is advantageous for energy efficiency but may limit its performance under heavy loads. The Ultra 5’s design caters to enthusiasts who may engage in overclocking, while the i5-9400 is more suited for standard use cases.
Target Audience
The Intel® Core™ Ultra 5 Processor is clearly targeted at enthusiasts and professional users who demand high performance for gaming and creative applications. Its advanced features and higher price point reflect this focus. In contrast, the Intel Core i5-9400 is aimed at mainstream consumers who require reliable performance for everyday tasks, such as web browsing and office applications, making it a more economical choice for budget-conscious buyers.
Graphics Capabilities
The Intel Core i5-9400 includes integrated Intel UHD Graphics 630, which provides basic graphical capabilities suitable for casual gaming and media consumption. In contrast, the Intel® Core™ Ultra 5 does not specify integrated graphics in the provided data, implying that it is designed more for users who will invest in dedicated graphics solutions. This distinction is crucial for gamers or professionals who require superior graphics performance.
Price Comparison
When it comes to pricing, the Intel® Core™ Ultra 5 is listed at C$332.99, while the Intel Core i5-9400 is priced at C$209.89. This C$123.10 difference reflects the Ultra 5's advanced features and capabilities, justifying its higher cost for users who need maximum performance. The i5-9400, while less expensive, provides good value for everyday computing needs without the advanced features necessary for high-performance tasks.
Which should you buy?
Choosing between the Intel® Core™ Ultra 5 Processor 250K Plus and the Intel Core i5-9400 depends largely on your specific needs and budget. If you require a processor that can handle demanding applications, high-end gaming, and multitasking with ease, the Ultra 5 is the superior choice, justifying its higher price with its 18 cores and advanced performance capabilities. However, if your computing needs are more modest, focusing on everyday tasks and casual use, the Intel Core i5-9400 provides excellent performance at a more accessible price point. Ultimately, the decision hinges on whether you value cutting-edge performance over cost-efficiency.
versusfinder.com is a participant in the Amazon.ca Associates Program. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

