The spec doesnt matter, the drives themselves cant keep up. Show me a drive that will run at that speed. I'd buy like 100 of them.. remove all my ram setup a huge raid-0 array and use 16gb of swap in replace of my ram running at 5000mb/s
ata133 & sata all benchmark at 50mbs for 7200rpm drives. raptors and other 10k rpm drives bench at 60mb/s