Intel Core i5-9400F vs Intel Core i7-12700KF

Core i5-9400F vs Core i7-12700KF comparison

In our benchmarks, the Core i7-12700KF beats the Core i5-9400F in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-9400F in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-12700KF has significantly more cores than the Core i5-9400F. Indeed, the Core i7-12700KF has 12 cores compared to 6 cores found in the Core i5-9400F. It also has more threads than the Core i5-9400F. Our comparison shows that the Core i7-12700KF has a slightly higher clock speed compared to the Core i5-9400F. Also, the Core i7-12700KF has a slightly higher turbo speed. A Core i5-9400F CPU outputs less heat than a Core i7-12700KF CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 i5-9400F has the same number of threads as cores. This means the the CPU does not support hyperthreading.