Intel Core i5-11400 vs Intel Core i5-12400

The Intel Core i5-11400 is an 11th generation Intel desktop processor, known under the codename Rocket Lake S.

It was designed for the mainstream market and targets users seeking solid performance for everyday tasks, productivity, and light gaming. Manufactured using the proven 14nm process, this processor features 6 cores and 12 threads, enabling good multitasking capabilities. It supports PCIe 4.0 and offers a maximum memory bandwidth of 51 GB/s.

With a 3 MB L2 cache and a 12 MB L3 cache, it contributes to smooth data processing. The integrated Intel UHD Graphics 730 allows for video output without a dedicated graphics card. The Intel Core i5-12400 belongs to Intel's 12th generation and carries the codename Alder Lake S.

This processor was also developed for the mainstream segment but offers significant architectural improvements over its predecessor. It is manufactured using the more advanced 10nm process, leading to higher efficiency and performance. Equipped with 6 cores and 12 threads, it delivers improved processing power for more demanding applications.

It supports the newer PCIe 5.0 and achieves a higher maximum memory bandwidth of 77 GB/s. With an 8 MB L2 cache and an 18 MB L3 cache, it benefits from expanded caching capacity. The integrated Intel UHD Graphics 730 is also present. In performance comparisons, the Intel Core i5-12400 shows significantly higher single-core performance, exceeding that of the Intel Core i5-11400 by over 10 percent in various benchmarks.

In multi-core performance, the Intel Core i5-12400 also significantly surpasses its predecessor, with an advantage of over 10 percent in all tests considered, and in some cases, even substantially more. This indicates noticeably improved computing power for parallelized tasks. For gaming scenarios, the Intel Core i5-12400 is the better choice due to its superior single-core performance and more modern architecture.

Games often benefit greatly from high single-core performance, and the efficiency improvements of the Alder Lake S architecture further contribute to a smoother gaming experience. PCIe 5.0 support also offers a future-proof platform, even if its practical benefit for current games is still limited. The Intel Core i5-12400 benefits from its more advanced 10nm manufacturing process.

This generally leads to better energy efficiency compared to the 14nm process of the Intel Core i5-11400. Although specific TDP values are not directly compared, it is expected that the Intel Core i5-12400 delivers higher performance per watt, which can potentially mean lower operating temperatures and reduced power consumption under load.

Without specific pricing, a direct evaluation is difficult. Generally, however, it is observed that older processor generations like the Intel Core i5-11400 are often available at a lower price, which can offer good value for money for certain budgets, especially if a compatible motherboard (LGA1200) is already present.

The Intel Core i5-12400, as a newer generation, offers higher performance and a more modern platform (LGA1700), which may initially mean higher costs for the processor and motherboard but also provides more future-proofing. The Intel Core i5-11400 is a solid option for users on a limited budget or for upgrades on an existing LGA1200 platform who are looking for reliable performance for everyday applications and light gaming.

Its strengths lie in cost-effectiveness. The Intel Core i5-12400, on the other hand, offers significantly higher overall performance, improved energy efficiency, and a more modern platform with PCIe 5.0 support. For new systems or users who want the best possible performance and future-proofing, the Intel Core i5-12400 is the recommended choice, even if this comes with potentially higher system costs.