Intel Core i5-10400 vs Intel Core i9-10900K

Core i5-10400 vs Core i9-10900K comparison

In our benchmarks, the Core i9-10900K beats the Core i5-10400 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-10400 in all gaming tests too.

With info from our database, we find that the Core i9-10900K has significantly more cores with 10 cores whereas the Core i5-10400 has 6 cores. It also has more threads than the Core i5-10400. These CPUs have different clock speeds. Indeed, the Core i9-10900K has a slightly higher clock speed compared to the Core i5-10400. Also, the Core i9-10900K has a slightly higher turbo speed. A Core i5-10400 CPU outputs less heat than a Core i9-10900K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Core i9-10900K has significantly more L2 cache when compared to the Core i5-10400. The Core i9-10900K also has significantly more L3 cache.

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. Indeed, the Core i5-10400 has more threads than cores. Each physical core is split into multiple threads.