Intel Core i5-6400 vs Intel Core i7-3537U

Core i5-6400 vs Core i7-3537U comparison

Our benchmark analysis concludes that the Core i5-6400 performs better than the Core i7-3537U. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-3537U in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i5-6400 has significantly more cores with 4 cores compared to the Core i7-3537U that has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core i5-6400 has a slightly higher clock speed compared to the Core i7-3537U. Also, the Core i5-6400 has a slightly higher turbo speed. The Core i7-3537U outputs less heat than Core i5-6400 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 i5-6400 has significantly more L2 cache when compared to the Core i7-3537U. The Core i5-6400 also has significantly 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 i5-6400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.