Intel Core i5-7600K vs Intel Core i5-9400

Core i5-7600K vs Core i5-9400 comparison

According to the hardwareDB Benchmark tool, the Core i5-9400 is faster than the Core i5-7600K. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-7600K in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i5-9400 has significantly more cores than the Core i5-7600K. Indeed, the Core i5-9400 has 6 cores compared to 4 cores found in the Core i5-7600K. It also has more threads than the Core i5-7600K. These CPUs have different clock speeds. Indeed, the Core i5-7600K has a slightly higher clock speed compared to the Core i5-9400. Also, the Core i5-7600K has a slightly higher turbo speed. The Core i5-9400 outputs less heat than Core i5-7600K thanks to a slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Core i5-9400 has significantly more L2 cache than the Core i5-7600K. The Core i5-9400 also has significantly more L3 cache.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. For instance, the Core i5-7600K has the same number of threads as cores. This means the the CPU does not support hyperthreading.