I've seen this happen between my laptop (Lenovo Ideapad Y500) running various different Linux distros (Ubuntu, Fedora being the common ones) and when I try to write a large file to a networked drive using Linux it seems to be limited to 40MB/s when on Windows it will move at around 112MB/s with no problems.
Is this due to some issues with Samba or is there simply more overhead when dealing with NTFS on Linux that I am not aware of?