Intel Core i9-9900K vs Intel Core i5-12450HX

Core i9-9900K vs Core i5-12450HX benchmarks

Our benchmark analysis concludes that the Core i9-9900K performs better than the Core i5-12450HX. Despite this, the Core i5-12450HX has the advantage in our gaming benchmark.

When comparing these CPUs we notice that they have the same number of cores but the Core i9-9900K has more threads. These CPUs have different clock speeds. Indeed, the Core i9-9900K has a significantly higher clock speed compared to the Core i5-12450HX. The cache sizes of these CPUs are different. Indeed, the Core i5-12450HX has significantly more L2 cache than the Core i9-9900K. Despite this, the Core i9-9900K has slightly more L3 cache compared to the Core i5-12450HX.

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. Indeed, the Core i9-9900K has more threads than cores. Each physical core is split into multiple threads.