time (let’s say after a reboot) then your machine will have to
actually read the disk. It’s likely to be as slow in both cases. Again the speed difference may not be as visible (this depends on hardware and the actual model).
The best performance benefit is when the model was already loaded previously on your computer and you’re switching from one model to another. Your OS, is trying really hard not to read from disk, since this is slow, so it 