Within 10%?
With newer SSDs now coming well within 10% of maxing out a SATA 3.0 port
I'm no genius or anything, so I'll only take a stab here.
Serial ATA 3.0 has a transfer speed of 6.0Gbp/s.
8b/10b encoding adjusts the maximum byte transfer rate to 600MB/s
FIS overhead can be as much...