Intel Core i5-6400T vs Intel Core i7-4558U

Core i5-6400T vs Core i7-4558U comparison

Our benchmark analysis concludes that the Core i5-6400T performs better than the Core i7-4558U. Despite this, the Core i7-4558U has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Core i5-6400T has significantly more cores with 4 cores compared to the Core i7-4558U that has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core i7-4558U has a slightly higher clock speed compared to the Core i5-6400T. Also, the Core i7-4558U has a slightly higher turbo speed. The Core i7-4558U outputs less heat than Core i5-6400T thanks to a slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 i5-6400T has the same number of threads as cores. This means the the CPU does not support hyperthreading.