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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 2026The 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

Intel® Core™ Ultra 5 Processor 250K Plus 18 cores
95
Intel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA
75

Specifications

SpecIntel® Core™ Ultra 5 Processor 250K Plus 18 coresIntel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA
Cores186
Max Turbo5.5 GHz4.1 GHz
Base Power125W65W
Max Turbo Power250W95W
PriceC$332.99C$209.89

Dimension comparison

Intel® Core™ Ultra 5 Processor 250K Plus 18 coresIntel Core i5-9400 Desktop Processor 6 Cores 2. 90 GHz up to 4. 10 GHz Turbo LGA

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.

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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 | versusfinder