Gb/s (Gbit/s) != GB/s
Sigh...
Gb/s (Gbit/s) != GB/s
http://en.wikipedia.org/wiki/Data_rate_units#Gigabit_per_second
A gigabit per second (Gbit/s, or Gb/s) is a unit of data transfer rate equal to:
1,000 megabits per second or
1,000,000 kilobits per second or
1,000,000,000 bits per second or
125,000,000 bytes per second.
http://en.wikipedia.org/wiki/Data_rate_units#Gigabyte_per_second
A gigabyte per second (GB/s) is a unit of data transfer rate equal to:
8,000,000,000 bits per second, or
1,000,000,000 bytes per second, or
1,000,000 kilobytes per second, or
1,000 megabytes per second, or
8 gigabits per second.