Intel Core i5-10400 vs Intel Core i7-1265U

Core i5-10400 vs Core i7-1265U benchmarks

In our benchmarks, the Core i5-10400 beats the Core i7-1265U in overall performance. Despite this, the Core i7-1265U has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Core i7-1265U has significantly more cores with 10 cores compared to the Core i5-10400 that has 6 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core i5-10400 has a significantly higher clock speed compared to the Core i7-1265U. Despite this, the Core i7-1265U has a slightly higher turbo speed. The Core i7-1265U outputs less heat than Core i5-10400 thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Core i7-1265U has more L2 cache than the Core i5-10400. However, both these chips have the same amount of 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.