Core i5-8400 vs Core i5-12400 specs and performance
According to the hardwareDB Benchmark tool, the Core i5-12400 is faster than the Core i5-8400. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.
Info from our database shows that they both have the same core count but the Core i5-12400 has more threads. Our comparison shows that the Core i5-8400 has a slightly higher clock speed compared to the Core i5-12400. Despite this, the Core i5-12400 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.
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 i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.