Intel® Core™ Ultra 5 Processor 250K Plus 18 cores vs Intel Core i5-12400 Desktop Processor 18M Cache
Updated August 2026 — The Intel® Core™ Ultra 5 Processor 250K Plus outperforms the Intel Core i5-12400 in core count, clock speed, and platform support, making it the better choice for enthusiasts.
The Intel® Core™ Ultra 5 Processor 250K Plus outperforms the Intel Core i5-12400 in core count, clock speed, and platform support, making it the better choice for enthusiasts.
Why Intel® Core™ Ultra 5 Processor 250K Plus 18 cores is better
Core Count
Ultra 5 has 24 cores vs i5's 6 cores
Clock Speed
Ultra 5 maxes at 5.5 GHz vs i5's 4.4 GHz
Platform Support
Ultra 5 supports PCIe 5.0 and DDR5
Why Intel Core i5-12400 Desktop Processor 18M Cache is better
Price
i5 is cheaper at C$381.45
Power Efficiency
i5 has lower power consumption
Mainstream Use
i5 is suitable for everyday tasks
Overall score
Specifications
| Spec | Intel® Core™ Ultra 5 Processor 250K Plus 18 cores | Intel Core i5-12400 Desktop Processor 18M Cache |
|---|---|---|
| Cores | 24 | 6 |
| Threads | 24 | 12 |
| Max Turbo | 5.5 GHz | 4.4 GHz |
| Base Power | 125W | 65W |
| Cache Size | N/A | 18MB |
Dimension comparison
Overview of the Intel® Core™ Ultra 5 Processor 250K Plus and Intel Core i5-12400
In this comparison, we will look at two Intel processors: the Intel® Core™ Ultra 5 Processor 250K Plus and the Intel Core i5-12400. The former is priced at C$332.99, while the latter comes at a higher price of C$381.45. Both processors cater to different segments of users, from gamers to productivity enthusiasts, and their specifications reflect these target audiences.
Performance Analysis
The performance of the Intel® Core™ Ultra 5 Processor 250K Plus stands out with its high-performance core configuration, featuring up to 24 cores, which includes 8 performance cores and 16 efficiency cores. This makes it ideal for demanding gaming and content creation tasks. It also boasts a max turbo frequency of 5.5 GHz, providing excellent responsiveness.
In contrast, the Intel Core i5-12400 has 6 cores and 12 threads, with a max turbo frequency of 4.4 GHz. While it is less powerful than the Ultra 5, it still delivers solid performance for everyday tasks and moderate gaming, making it suitable for budget-conscious users who still want good efficiency.
Core and Thread Count
Core count plays a crucial role in a processor's ability to multitask and handle demanding applications. The Intel® Core™ Ultra 5 Processor 250K Plus features a substantial 24 cores, which is particularly advantageous for users engaging in high-intensity tasks like gaming and video editing.
On the other hand, the Intel Core i5-12400 has 6 cores and 12 threads, which may limit its capability in handling multiple demanding applications simultaneously. Users focused on heavy multitasking or running resource-intensive applications may find the Ultra 5 significantly more beneficial in this regard.
Clock Speeds
Clock speed is another vital aspect of CPU performance. The Intel® Core™ Ultra 5 Processor 250K Plus achieves an impressive max turbo frequency of 5.5 GHz, ensuring it can handle bursts of high-demand tasks efficiently. This high clock speed also supports gaming and productivity applications requiring quick response times.
The Intel Core i5-12400, while having a decent max turbo frequency of 4.4 GHz, simply cannot match the speed of the Ultra 5. This difference in clock speeds can impact performance in demanding scenarios, making the Ultra 5 a more appealing option for power users.
Platform Support and Compatibility
The Intel® Core™ Ultra 5 Processor 250K Plus is built for next-gen platform support, being compatible with Intel 800 Series Chipset-based motherboards that feature the LGA1851 socket. This allows for advanced technologies like PCIe 5.0 and high-speed DDR5 memory support, which is crucial for future-proofing a system.
Conversely, the Intel Core i5-12400, while still reliable, does not offer the same level of cutting-edge platform compatibility, as it is built for slightly older architectures. Users who want to take advantage of the latest technology in their builds should consider the Ultra 5 for its superior compatibility.
Thermal Design and Power Consumption
Thermal design and power consumption are important factors, especially for users planning to overclock or run intensive applications. The Intel® Core™ Ultra 5 Processor 250K Plus has a robust power design with a base power of 125W and a maximum turbo power of 250W. This allows it to maintain performance under heavy loads without overheating.
In comparison, the Intel Core i5-12400 is more power-efficient with lower power requirements, but this also means it may not sustain high performance during extended periods of intense usage. Users who prioritize performance and are willing to manage thermal output may prefer the Ultra 5.
Target Audience
When considering the target audience for each processor, the Intel® Core™ Ultra 5 Processor 250K Plus is clearly aimed at enthusiasts and professionals who require high performance for gaming, content creation, and productivity. Its higher core count, clock speed, and advanced compatibility make it ideal for demanding users.
On the other hand, the Intel Core i5-12400 is geared towards mainstream users who need a reliable processor for everyday tasks such as browsing, streaming, and light gaming. Its lower price point makes it attractive for budget-conscious consumers who do not require the extensive capabilities of the Ultra 5.
Which should you buy?
Choosing between the Intel® Core™ Ultra 5 Processor 250K Plus and the Intel Core i5-12400 ultimately depends on your specific needs and budget. If you are an enthusiast looking for top-tier performance, with a price of C$332.99, the Ultra 5 clearly offers superior specifications, including more cores, higher clock speeds, and advanced platform support. Its capabilities make it an excellent investment for those who need high performance and future-proofing.
However, if you are looking for a more budget-friendly option for general use, the Intel Core i5-12400 at C$381.45 provides solid performance for everyday tasks and moderate gaming. It’s a sensible choice for users who do not require the high power and extensive features of the Ultra 5. In summary, for high performance and advanced features, choose the Ultra 5, while the Core i5-12400 suffices for more casual users.
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