Intel Core i5-9400 vs Intel Core i5-8500

The Intel Core i5-8500, based on the Coffee Lake S architecture, and the Intel Core i5-9400, with the slightly updated Coffee Lake S Refresh architecture, are both desktop processors for the mainstream market.

Both are manufactured using a 14-nm process and feature 6 cores and 6 threads. They are designed for general productivity tasks, office applications, and light gaming. Both support PCIe 3.0 and offer a maximum memory bandwidth of 43 GB/s. Their integrated graphics solution is the Intel UHD Graphics 630, and the Level 3 cache is 9 MB each.

In benchmarks, the Intel Core i5-8500 and Intel Core i5-9400 show nearly identical single-core and multi-core performance. The measured differences are well below the 10 percent threshold and are not noticeable in daily use. Even in gaming scenarios, both processors offer a very similar foundation.

For demanding gaming, the use of a dedicated graphics card is essential for both models, as the integrated Intel UHD Graphics 630 is only designed for basic graphical requirements. Both processors share a Thermal Design Power (TDP) of 65 watts, indicating moderate power consumption and straightforward cooling solutions.

In today's market, both the Intel Core i5-8500 and the Intel Core i5-9400 are primarily available as used components. They offer excellent value for money for budget systems or upgrades. Given their very similar performance in all areas, the choice between the two models is less a question of technical superiority and more about better availability or a lower price.