I've been using Construct on 5 different laptops in the past years - three of them had Intel processors (5-10th gen) and two AMD Ryzen 7.
I can tell that Intel integrated graphics is noticeably slower than AMD, and generally runs hotter. But if you are working on small projects, there probably won't be much difference.
My current everyday laptop is a Ryzen 7 5700U ultrabook with 32 GB RAM. It can easily handle C3 projects that are gigabytes in size.
I can also confirm that C3 runs smoothly on a gaming laptop (Ryzen 7 + RTX 2060).