If you mean simply from copying over files, then neither does my computer....there's not enough calculations in simply moving files that requires processor power....that's purely up to the whim of the HD and how fast it works.....when I copied a 3gb file over it just took a long time for my two hard drives to copy the file from one to the other, did nothing to my CPU as far as utilization.My CPU's never reach 100% utilization, because the hard drive's can't keep up with them.
Haven't done any benches for that so honestly I don't know, probably not great because the drives are somewhat old.What is the sustained transfer rate of your current drive(s)?
Yeah if it's copied to the RAM then the CPU would communicate with it, but I've never moved anything that's required heavy use of the RAM or CPU....not simply moving files anyway..... Deleting them yeah it does use CPU power I've noticed, quite a bit more than simply copying them over...Usually when the drive is coping data into the RAM, it is then being used right away.. This utilizes the CPU..