Intel Core i5-8400 vs Intel Core i5-11400H

Core i5-8400 vs Core i5-11400H benchmarks

Our benchmark analysis concludes that the Core i5-11400H performs better than the Core i5-8400. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.

Our spec comparison shows that they have an identical amount of cores but the Core i5-11400H has more threads. With our hardware info, we find that the Core i5-8400 has a slightly higher clock speed than the Core i5-11400H. Despite this, the Core i5-11400H has a slightly higher turbo speed. The Core i5-11400H 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. In terms of cache, the Core i5-11400H has significantly more L2 cache when compared to the Core i5-8400. The Core i5-11400H also has slightly more L3 cache.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. For instance, the Core i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.