Core i9-9900K vs Core i5-12400F comparison
Our benchmark analysis concludes that the Core i9-9900K performs better than the Core i5-12400F. Despite this, the Core i5-12400F has the advantage in our gaming benchmark.
In terms of the number of cores of each of these CPUs, the Core i9-9900K has slightly more cores than the Core i5-12400F. Indeed, the Core i9-9900K has 8 cores compared to 6 cores found in the Core i5-12400F. It also has more threads than the Core i5-12400F. These CPUs have different clock speeds. Indeed, the Core i9-9900K has a significantly higher clock speed compared to the Core i5-12400F. Also, the Core i9-9900K has a slightly higher turbo speed. The Core i5-12400F outputs less heat than Core i9-9900K thanks to a 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. Indeed, the Core i9-9900K has more threads than cores. Each physical core is split into multiple threads.