Intel Core i5-6400 vs Intel Core i5-9400

Core i5-6400 vs Core i5-9400 comparison

In our benchmarks, the Core i5-9400 beats the Core i5-6400 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-6400 in all gaming tests too.

With info from our database, we find that the Core i5-9400 has significantly more cores with 6 cores whereas the Core i5-6400 has 4 cores. It also has more threads than the Core i5-6400. Our comparison shows that the Core i5-9400 has a slightly higher clock speed compared to the Core i5-6400. Also, the Core i5-9400 has a slightly higher turbo speed. Both these chips have an identical TDP (Thermal Design Power). 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 i5-9400 has more L2 cache than the Core i5-6400. The Core i5-9400 also has significantly more L3 cache.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. For instance, the Core i5-6400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.