Intel Core i5-10400 vs Intel Core i9-10900

Core i5-10400 vs Core i9-10900 specs and performance

Our benchmark analysis concludes that the Core i9-10900 performs better than the Core i5-10400. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-10400 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i9-10900 has significantly more cores than the Core i5-10400. Indeed, the Core i9-10900 has 10 cores compared to 6 cores found in the Core i5-10400. It also has more threads than the Core i5-10400. Our comparison shows that the Core i5-10400 has a slightly higher clock speed compared to the Core i9-10900. Despite this, the Core i9-10900 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. The cache sizes of these CPUs are different. Indeed, the Core i9-10900 has significantly more L2 cache than the Core i5-10400. The Core i9-10900 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.