Intel Core i5-8400 vs Intel Core i7-11700K

Core i5-8400 vs Core i7-11700K specs and performance

In our benchmarks, the Core i7-11700K beats the Core i5-8400 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-11700K has slightly more cores than the Core i5-8400. Indeed, the Core i7-11700K has 8 cores compared to 6 cores found in the Core i5-8400. It also has more threads than the Core i5-8400. Our comparison shows that the Core i7-11700K has a slightly higher clock speed compared to the Core i5-8400. Also, the Core i7-11700K has a slightly higher turbo speed. A Core i5-8400 CPU outputs less heat than a Core i7-11700K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Core i7-11700K has more L2 cache than the Core i5-8400. The Core i7-11700K also has significantly 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 i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.