Intel Core i7-8665U vs Intel Core i7-1355U

Core i7-8665U vs Core i7-1355U comparison

Our benchmark analysis concludes that the Core i7-1355U performs better than the Core i7-8665U. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-8665U in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-1355U has significantly more cores than the Core i7-8665U. Indeed, the Core i7-1355U has 10 cores compared to 4 cores found in the Core i7-8665U. It also has more threads than the Core i7-8665U. With our hardware info, we find that the Core i7-8665U has a slightly higher clock speed than the Core i7-1355U. Despite this, the Core i7-1355U has a slightly higher turbo speed.

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 i7-8665U has more threads than cores. Each physical core is split into multiple threads.