Hi Alexey,
Both laptops are using a 2 NVMe SSD setup. The OS and programs on one, and the data on the other. The storage drive on the new laptop is slightly faster than the one on the older machine. A Samsung 2TB 990 PRO vs a SAMSUNG 970 EVO Plus.
I did not try running the DEM generation more than once on either. The actual time of generation is fairly insignificant in this case ( 560,xxx,xxx points in cloud). I was just surprised that it would be slower at all on the new machine.