Incremental builds are unlikely to benefit from multiple cores. I have a 5900x Desktop and recently bought a Laptop with 12700H. For some incremental builds, I'm getting the same performance. The Desktop Ryzen shines with full multiple builds (where the laptop gets hot and has to sabotage itself); or with running multiple programs without noticeable performance impact.
I haven't tried mold. I already face lots of difficulties with the current linker since I need to deploy to multiple architectures, so I can't imagine how that would be with Mold (but then maybe that's why I should try it!)
Incremental builds are unlikely to benefit from multiple cores. I have a 5900x Desktop and recently bought a Laptop with 12700H. For some incremental builds, I'm getting the same performance. The Desktop Ryzen shines with full multiple builds (where the laptop gets hot and has to sabotage itself); or with running multiple programs without noticeable performance impact.