Intel Core i5-6600K vs Intel Core i5-6400

The Intel Core i5-6600K was introduced as a high-performance solution for enthusiasts and overclockers.

Based on the Skylake S architecture, this processor is manufactured using the 14 nm process. It features four cores and four threads. In benchmarks, the Intel Core i5-6600K shows significant advantages over the smaller model in both single-core and multi-core performance, as the difference is well over ten percent.

In games, it delivers a more stable frame rate thanks to higher clock speeds. With a Thermal Design Power of 91 watts, it consumes more energy but offers flexibility for manual clock adjustments through the unlocked multiplier. The integrated Intel HD Graphics 530 handles basic graphical tasks. For users seeking maximum computing power from this generation, the Intel Core i5-6600K remains the preferred choice.

The Intel Core i5-6400 is aimed at price-conscious users and is frequently used in standard desktop systems.

This processor also utilizes the Skylake S architecture in a 14 nm process and offers four cores as well as four threads. In terms of computing power, it ranks noticeably below the K-model, which is reflected in lower scores in single-core and multi-core tests. In gaming scenarios, the performance is sufficient for many applications, but it does not reach the level of its more powerful counterpart.

A significant advantage is the lower Thermal Design Power of 65 watts, which reduces cooling requirements and power consumption. The price-performance ratio is solid, as the Intel Core i5-6400 provides a cost-effective basis for everyday tasks. The memory bandwidth of 34 GB/s and PCIe 3.0 match the standard of this product family.