Not sure I understand... Is there something I should know? You mean an electric screw driver? I'm confused
my "I don't know what I'm talking about" summary
electric screwdriver will replace you putting in a screw by hand with a screwdriver
drill will drill holes and do a decent job of putting screws in
impact driver doesn't drill holes, but has far higher torque and less likely to slip off a screw head. So if you're putting a lot of screws into a wall then you're going to get through it more quickly and without rounding out a bunch of heads
It’s more about torque delivery rather than amount of torque. My big drill driver is very powerful but still shit for putting big screws in by comparison.
my "I don't know what I'm talking about" summary
electric screwdriver will replace you putting in a screw by hand with a screwdriver
drill will drill holes and do a decent job of putting screws in
impact driver doesn't drill holes, but has far higher torque and less likely to slip off a screw head. So if you're putting a lot of screws into a wall then you're going to get through it more quickly and without rounding out a bunch of heads