Passing a Toshiba MK-5055 in GSX 5400T / min, and much less efficient in addition, it is felt everywhere! In games for shipments at the start and at the speed file transfer to external eSATA HDD (Samsung Spinpoint F3 HD103SJ) for large files with an average has more than 100MB / s! And about 70-80 MB / s transfer a few GB of music;)