Performance - Synthetic Gaming - 3DMark Time Spy
Performance - Synthetic Gaming - 3DMark Time SpySynthetic - 3DMark Time Spy
3DMark includes everything you need to benchmark your hardware. Time Spy is way more GPU-dependent, though. But still, a very representative title concerning PC gaming performance.
Note: it's not rather fair to compare a mobile RTX 4090 with a desktop 4090 founder edition, but hey ... it holds ground to a certain extent.