Intel Core i7-6700K vs Intel Core i7-1255U

Core i7-6700K vs Core i7-1255U comparison

In our benchmarks, the Core i7-1255U beats the Core i7-6700K in overall performance. Despite this, the Core i7-6700K has the advantage in our gaming benchmark.

With info from our database, we find that the Core i7-1255U has significantly more cores with 10 cores whereas the Core i7-6700K has 4 cores. It also has more threads than the Core i7-6700K. These CPUs have different clock speeds. Indeed, the Core i7-6700K has a significantly higher clock speed compared to the Core i7-1255U. Despite this, the Core i7-1255U has a slightly higher turbo speed. The Core i7-1255U outputs less heat than Core i7-6700K 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 i7-1255U has more L2 cache than the Core i7-6700K. The Core i7-1255U also has significantly more L3 cache.

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 i7-6700K has more threads than cores. Each physical core is split into multiple threads.