So it is clear that ssds will be slowed down when working with hdds. In that case the ssd will only be usefull to open the application faster. Just that. And this is some useful info for many people.
Sdds are more reliable than hdd ok but Unless your data isnt in the ssd you cant take advantage of the ssds speed.
If you're talking about having a single HDD for system and data vs SSD for system and HDD for data, it's night and day difference in speed for everything. Not just because of the SDD. If you had two HDDs with one for system and one for data, you would see a huge speed increase over a single drive for everything. ... and no, partitioning one drive into several is not the same thing. That has zero benefit. Having your data on a separate drive means that the drive head is not constantly switching positions between the system files and data files. Also, the smaller the drive, the faster the access. Although a second HDD would work, it just makes sense to use the SDD, as it's faster and more stable.