Intel Core i5-6500 vs Intel Core i5-8400

The Intel Core i5-6500, based on the Skylake S architecture and introduced in 2015, was aimed at the mainstream desktop market.

Manufactured using the 14 nm process, it features 4 cores and 4 threads. It integrates Intel HD Graphics 530, supports PCIe 3.0, offers 6 MB of L3 cache, and a maximum memory bandwidth of 34 GB/s. The Intel Core i5-8400, part of the Coffee Lake S architecture and released in 2017, targeted a similar segment.

Also manufactured using the 14 nm process, it has 6 cores and 6 threads. It is equipped with Intel UHD Graphics 630, supports PCIe 3.0, has 9 MB of L3 cache, and a maximum memory bandwidth of 43 GB/s. The Intel Core i5-8400 shows a clear advantage over the Intel Core i5-6500 in single-core performance.

In multi-core applications, its performance lead, primarily due to the two additional cores, is even more pronounced and significantly exceeds the ten percent mark in tests. For gaming scenarios, the Intel Core i5-8400 is the superior choice due to its higher core count and better single-core performance, offering a smoother experience in modern titles.

The Intel Core i5-6500 can handle older titles but does not reach the level of the Intel Core i5-8400. Both processors have a Thermal Design Power (TDP) of 65 watts, indicating comparable energy consumption and similar cooling requirements. The Intel Core i5-6500 is available very cheaply on the used market and offers good value for money for basic systems.

The Intel Core i5-8400 fetches higher prices on the used market but justifies this with its significantly better overall performance. The Intel Core i5-6500 is suitable for basic tasks and budget-friendly systems. The Intel Core i5-8400 is recommended for users who need higher performance for multitasking and demanding gaming.