Thx, the manufactures stated speed sucks and puts it over on the public. Thx for the answer.
The manufacturers are actually pretty forthcoming in the speed of their drives. Seagate lists the max sustained transfer rate for their drives between 125-210 MB/s.http://www.seagate.com/internal-hard-drives/desktop-hard-drives/desktop-hdd/
I'm sorry you were fooled into thinking the SATA3 speed was the drive's actual speed. It's just the interface's max theoretical speed. This is just one of those things anybody buying hard drives has to learn. If it makes you feel better, if you're reading something from the drive which is sitting entirely within the 16-64 MB cache, it will
be transferred at the full 6 GB/s. It'll finish in 0.01 sec instead of 0.02 sec, but it will have been transferred at 6 GB/s.