Core i7-12700H vs. Ryzen 9 5900HS | Intel's Alder Lake is slower than AMD's Cezanne Zen 3 at 45W TDP

The new Core i7-12700H uses 6 performance cores (with Hyperthreading) and 8 efficiency cores, so the i7 can execute up to 20 threads simultaneously in multi-core applications. The Core i9-12900H uses the same number of cores and even though it would be the most suitable contender for the Ryzen 9, the 12900H would not offer a performance advantage over the i7 at the same 45W TDP configuration. On the other side of the competition we have the AMD Ryzen 9 5900HS, which can execute 16 threads with its eight cores.

We do not want to ignore that Intel managed to increase the single-core performance thanks to the new performance cores and manages an advantage between 10-20% (depending on the benchmark). However, this is a result of the high power consumption. While the Intel Core i7-12700H shows a total consumption of 29W (IA cores: 22W) during single-core tests, the Ryzen 9 5900HS only consumes 18W overall and 14W for the core. This means AMD is still ahead in terms of efficiency and it is also an explanation why Intel only uses up to 6 performance cores in its mobile processors.

We will publish the two reviews of the Lenovo Yoga Slim 7 Pro and the Alienware x14 in the next couple of days, just like a review of the new Ryzen 6 6900HS.