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

Core i5-8400 vs Core i5-8400H comparison

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

With info from our database, we find that the Core i5-8400 has significantly more cores with 6 cores whereas the Core i5-8400H has 4 cores. Despite this, the Core i5-8400H has more threads than the Core i5-8400. With our hardware info, we find that the Core i5-8400 has a slightly higher clock speed than the Core i5-8400H. Despite this, the Core i5-8400H has a slightly higher turbo speed. The Core i5-8400H 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 info from our database shows that the Core i5-8400 has more L2 cache than the Core i5-8400H. Despite this, the Core i5-8400H has slightly more L3 cache compared to the Core i5-8400.

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.