Intel Core i5-10400 vs Intel Core i5-8600K

Core i5-10400 vs Core i5-8600K specs and performance

Our benchmark analysis concludes that the Core i5-10400 performs better than the Core i5-8600K. Despite this, the Core i5-8600K has the advantage in our gaming benchmark.

When comparing these CPUs we notice that they have the same number of cores but the Core i5-10400 has more threads. Our comparison shows that the Core i5-8600K has a slightly higher clock speed compared to the Core i5-10400. Furthermore, both these CPUs have identical turbo speeds. A Core i5-10400 CPU outputs less heat than a Core i5-8600K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, both these CPUs have the same amount of L2 cache. The Core i5-10400 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 i5-10400 has more threads than cores. Each physical core is split into multiple threads.