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Intel Core i5-12400 Desktop Processor 18M Cache, vs Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz

Updated August 2026 — Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz leads on performance and price.

The Intel Core i5-14400 offers superior performance with more cores and higher clock speeds, making it the better choice for demanding tasks.

Why Intel Core i5-12400 Desktop Processor 18M Cache, is better

Price

i5-12400 is significantly cheaper

Power

Both have the same TDP of 65W

Basic Tasks

i5-12400 is sufficient for everyday use

Why Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz is better

Performance

Higher clock speed and more cores

Cache

Larger 20 MB cache for better data handling

Future-proof

Compatible with newer 700 Series motherboards

Overall score

Intel Core i5-12400 Desktop Processor 18M Cache,
75
Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz
85

Specifications

SpecIntel Core i5-12400 Desktop Processor 18M Cache,Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz
Cores610
Threads1216
Base Clock2.50 GHz4.7 GHz
Turbo Clock4.40 GHz4.7 GHz
L3 Cache18 MB20 MB

Dimension comparison

Intel Core i5-12400 Desktop Processor 18M Cache,Intel® Core™ i5-14400 Desktop Processor 10 cores 4.7 GHz

Overview of the Intel Core i5-12400 and i5-14400

The Intel Core i5-12400 is priced at $214.99, while the i5-14400 is available for $264.99, making the latter about 23% more expensive. Both processors are designed for high performance, but they cater to different needs in terms of core architecture and capabilities. The 12th Gen i5-12400 offers solid performance with its 6 cores, while the 14th Gen i5-14400 enhances this with a hybrid architecture that includes 10 cores.

Performance Capabilities

The Intel Core i5-12400 operates with a base clock speed of 2.50 GHz and can turbo boost up to 4.40 GHz. It features 6 cores and 12 threads, making it suitable for multitasking and demanding applications. In contrast, the i5-14400 boasts a higher base clock speed of 4.7 GHz and a total of 10 cores (6 P-cores and 4 E-cores), allowing it to handle even more intensive workloads. This performance hybrid architecture helps optimize processing tasks, which is particularly beneficial for gamers and content creators.

Cache and Memory Support

The i5-12400 comes with an 18 MB L3 cache, which is effective for routine data handling and contributes to smooth performance. The i5-14400, on the other hand, has a larger 20 MB cache, allowing it to manage more data simultaneously. Both processors support DDR5 and DDR4 memory, coupled with PCIe 5.0 and 4.0 support, ensuring they are future-proof and compatible with the latest hardware. This makes the i5-14400 slightly more advantageous for users who require higher memory bandwidth.

Integrated Graphics

Both processors include Intel UHD Graphics 730, ensuring good visual quality and support for multiple monitors. The i5-12400 is equipped for up to four monitors, which is sufficient for most users. The i5-14400, with its enhanced architecture, is also optimized for visual performance, making it a solid choice for gamers and professionals needing reliable graphics without a dedicated GPU. However, both options deliver similar integrated graphics capabilities, so the choice here may depend more on other performance factors.

Thermal Management

Both the i5-12400 and i5-14400 come with the Intel Laminar RM1 cooler, which helps maintain optimal temperatures during operation. They both have a thermal design power (TDP) of 65W, indicating that neither processor is overly demanding on power and can remain efficient even under heavy loads. This common ground means that users won’t experience significant differences in thermal performance, making both processors suitable for standard builds without requiring high-end cooling solutions.

Compatibility and Upgradability

The i5-12400 is compatible with Intel 600 Series Chipset motherboards, while the i5-14400 can work with both Intel 600 and 700 Series motherboards (with potential BIOS updates). This means that users looking to upgrade from an older processor might find the i5-14400 to be a more versatile option if they plan to invest in newer hardware in the future. The i5-12400 may be a great choice for those who are building a budget-friendly system without immediate plans for upgrades.

Price Consideration

At a current price of $214.99, the i5-12400 is about 23% cheaper than the i5-14400, which retails for $264.99. This price difference may be a significant factor for budget-conscious consumers. However, the additional cost of the i5-14400 may be justified for users who require the higher performance and multi-core capabilities it offers. Therefore, the decision may hinge on whether the user values the enhanced performance over the lower price point.

Which should you buy?

Choosing between the Intel Core i5-12400 and the i5-14400 largely depends on your specific needs. If you're looking for a budget-friendly processor that still delivers solid performance for everyday tasks and moderate gaming, the i5-12400 is an excellent choice. However, if your work involves more intensive applications or gaming that can leverage the additional cores and higher clock speeds, the i5-14400 may be worth the extra investment. Ultimately, assess your specific workload and budget to make the most informed decision.