Will I notice any performance difference if I switch from an HDD to an M.2 SSD?

Aee

I don’t really understand much about this computer stuff

My PC is old. I have a 1060 that currently runs all the games I wanted it to run

Right now my PC has a 1 TB HDD. My friend says that’s very old and that I should invest in an SSD

But what would be the difference? The space I’ll be able to use is the same

Is this actually going to change anything for games or is it better to invest in one of those upgrade kits?