Intel Core i5-6600K vs Intel Core i7-8665U

Core i5-6600K vs Core i7-8665U benchmarks

In our benchmarks, the Core i5-6600K beats the Core i7-8665U in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-8665U in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores but the Core i7-8665U has more threads. With our hardware info, we find that the Core i5-6600K has a significantly higher clock speed than the Core i7-8665U. Despite this, the Core i7-8665U has a slightly higher turbo speed. The Core i7-8665U outputs less heat than Core i5-6600K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 i5-6600K has the same number of threads as cores. This means the the CPU does not support hyperthreading.