Intel Core i7-7700K vs Intel Core i5-9400F

Core i7-7700K vs Core i5-9400F specs and performance

Our benchmark analysis concludes that the Core i5-9400F performs better than the Core i7-7700K. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-7700K in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i5-9400F has significantly more cores with 6 cores compared to the Core i7-7700K that has 4 cores. Despite this, the Core i7-7700K has more threads than the Core i5-9400F. These CPUs have different clock speeds. Indeed, the Core i7-7700K has a significantly higher clock speed compared to the Core i5-9400F. Also, the Core i7-7700K has a slightly higher turbo speed. The Core i5-9400F outputs less heat than Core i7-7700K thanks to a significantly 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 i5-9400F has significantly more L2 cache than the Core i7-7700K. The Core i5-9400F also has slightly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Core i7-7700K has more threads than cores. Each physical core is split into multiple threads.