Intel Core i5-8600K vs Intel Core i7-1255U

Core i5-8600K vs Core i7-1255U specs and performance

Our benchmark analysis concludes that the Core i5-8600K performs better than the Core i7-1255U. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-1255U in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-1255U has significantly more cores than the Core i5-8600K. Indeed, the Core i7-1255U has 10 cores compared to 6 cores found in the Core i5-8600K. It also has more threads than the Core i5-8600K. These CPUs have different clock speeds. Indeed, the Core i5-8600K has a significantly higher clock speed compared to the Core i7-1255U. Despite this, the Core i7-1255U has a slightly higher turbo speed. The Core i7-1255U outputs less heat than Core i5-8600K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Core i7-1255U has significantly more L2 cache when compared to the Core i5-8600K. The Core i7-1255U 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. For instance, the Core i5-8600K has the same number of threads as cores. This means the the CPU does not support hyperthreading.