Intel Core i7-12800H vs Intel Core i5-1245U

Core i7-12800H vs Core i5-1245U specs and performance

In our benchmarks, the Core i7-12800H beats the Core i5-1245U in overall performance. Despite this, the Core i5-1245U has the advantage in our gaming benchmark.

With info from our database, we find that the Core i7-12800H has slightly more cores with 14 cores whereas the Core i5-1245U has 10 cores. It also has more threads than the Core i5-1245U. Our comparison shows that the Core i7-12800H has a significantly higher clock speed compared to the Core i5-1245U. Also, the Core i7-12800H has a slightly higher turbo speed. The Core i5-1245U outputs less heat than Core i7-12800H thanks to a significantly lower TDP. 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 i5-1245U has significantly more L2 cache than the Core i7-12800H. Despite this, the Core i7-12800H has significantly more L3 cache compared to the Core i5-1245U.

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 i7-12800H has more threads than cores. Each physical core is split into multiple threads.