Intel Core i5-8400 vs Intel Core i7-6700T

Core i5-8400 vs Core i7-6700T benchmarks

In our benchmarks, the Core i5-8400 beats the Core i7-6700T in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-6700T in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i5-8400 has significantly more cores with 6 cores compared to the Core i7-6700T that has 4 cores. Despite this, the Core i7-6700T has more threads than the Core i5-8400. Both the Core i5-8400 and Core i7-6700T have the same clock speed. Despite this, the Core i5-8400 has a slightly higher turbo speed. The Core i7-6700T outputs less heat than Core i5-8400 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 i5-8400 has significantly more L2 cache than the Core i7-6700T. The Core i5-8400 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 i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.