INTEL CPU Core i5-12400F / 6/12 / 2.5GHz / vs Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores
Updated August 2026 — INTEL CPU Core i5-12400F / 6/12 / 2.5GHz / wins on power, Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores wins on performance and price.
The Intel® Core™ Ultra 5 Processor 250KF Plus offers superior performance and features, making it the better choice for enthusiasts. However, the i5-12400F is a more budget-friendly option.
Why INTEL CPU Core i5-12400F / 6/12 / 2.5GHz / is better
Price
i5-12400F is significantly cheaper at $149.00
Power Consumption
i5-12400F has a lower base power of 65W
Target Audience
i5-12400F is ideal for budget-conscious users
Why Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores is better
Performance
Ultra 5 Processor has 18 cores versus 6 in i5-12400F
Turbo Frequency
Ultra 5 Processor can reach up to 5.5 GHz
Future-Proofing
Ultra 5 Processor supports PCIe 5.0 and DDR5 memory
Overall score
Specifications
| Spec | INTEL CPU Core i5-12400F / 6/12 / 2.5GHz / | Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores |
|---|---|---|
| Cores | 6 | 18 |
| Threads | 12 | 24 |
| Base Frequency | 2.5 GHz | 3.5 GHz |
| Max Turbo Frequency | 4.4 GHz | 5.5 GHz |
| Base Power | 65W | 125W |
Dimension comparison
Overview of the Processors
When comparing the INTEL CPU Core i5-12400F and the Intel® Core™ Ultra 5 Processor 250KF Plus, the most notable difference lies in their core configurations and pricing. The i5-12400F features 6 cores and 12 threads, while the Ultra 5 Processor 250KF Plus boasts an impressive 18 cores, which include 6 performance cores and 12 efficiency cores. The i5-12400F is priced at $149.00, making it about 38% cheaper than the Ultra 5 Processor 250KF Plus, which is priced at $240.58. This price difference may influence buyers depending on their performance needs and budget constraints.
Performance Capabilities
The performance capabilities of these two processors are markedly different. The i5-12400F has a base frequency of 2.5 GHz and can turbo boost up to 4.4 GHz. In contrast, the Ultra 5 Processor 250KF Plus can reach a maximum turbo frequency of up to 5.5 GHz. This means that for high-intensity tasks such as gaming or content creation, the Ultra 5 Processor is likely to outperform the i5-12400F significantly, offering enhanced responsiveness and speed. For users focused on demanding applications, the extra investment in the Ultra 5 Processor could be justified.
Thermal and Power Design
The thermal and power design of these processors also differs significantly. The i5-12400F has a 65W processor base power, while the Ultra 5 Processor 250KF Plus has a substantially higher base power of 125W and can reach a maximum turbo power of 250W. This higher power consumption can translate into better performance under load but may require more robust cooling solutions and power supplies. Users should consider their system's thermal management capabilities when choosing between these processors.
Compatibility with Motherboards
Compatibility with motherboards is another area where these processors diverge. The i5-12400F is compatible with 600 series chipset-based motherboards, while the Ultra 5 Processor 250KF Plus is designed for the newer 800 series chipset-based motherboards. This difference means that users looking to upgrade to the Ultra 5 Processor may also need to invest in a new motherboard, adding to the overall cost of the upgrade. The Ultra 5 Processor’s support for PCIe 5.0 and DDR5 memory (up to 7200 MT/s) further enhances its appeal for future-proofing a build.
Target Audience
The target audiences for these processors also vary significantly. The i5-12400F is ideal for budget-conscious gamers and general productivity users who require decent performance without breaking the bank. On the other hand, the Ultra 5 Processor 250KF Plus is geared towards enthusiasts and power users who demand top-tier performance for gaming, content creation, and overclocking capabilities. This distinction in target audience plays a crucial role in determining which processor will meet the specific needs of the buyer.
Gaming Performance
When it comes to gaming performance, the Ultra 5 Processor 250KF Plus is likely to have the upper hand due to its higher core count and turbo frequency. The 18 cores (6 P-cores and 12 E-cores) of the Ultra 5 Processor allow for superior multitasking and enhanced frame rates in demanding games. The i5-12400F, while capable, may struggle to keep up in the latest titles that require more processing power, making it less suitable for hardcore gaming setups. Gamers looking for longevity and performance might lean towards the Ultra 5 Processor despite the higher price tag.
Price-to-Performance Ratio
Evaluating the price-to-performance ratio reveals that the i5-12400F offers a more budget-friendly option for users who do not require cutting-edge performance. At $149.00, it presents a solid value for casual users and gamers. In contrast, while the Ultra 5 Processor 250KF Plus at $240.58 is more expensive, it justifies this cost through its advanced features and capabilities that cater to high-performance needs. Buyers must weigh their specific performance requirements against their budget when making a decision.
Which should you buy?
Ultimately, the choice between the INTEL CPU Core i5-12400F and the Intel® Core™ Ultra 5 Processor 250KF Plus depends on individual needs and budget considerations. If you are a casual user or gamer looking for a cost-effective solution, the i5-12400F at $149.00 is a sensible choice. However, for enthusiasts and professionals who require top performance for demanding applications, the Ultra 5 Processor 250KF Plus at $240.58 offers superior capabilities that justify its higher price.

