Is the transfer synchronous (8 bits per byte and no framing) where 16Mbits/sec = 2Mbytes per second?
Is it asynchronous (8bits per byte plus 2 framing) where 16Mbits/sec = 1.6Mbytes per second?
Is it asynchronous block (256bytes of 8 bits per byte plus 8 bits framing) where 16Mbits/sec = 1.9998Mbytes per second?
Based on industry practices it appears that they are quoting raw throughput.
See explanation contained http://www.tomshardware.com/forum/271146-32-since#6004346
790-800MB/s is achievable using a PCIe SSD but no one can hit 768MB/s with SATA 6Gb/s SSD.
That is how I came about 1.6GB/s ceiling for a 16Gb/s SATA Express SSD.
I do not expect SATA Express SSDs that are below $1/GB @ 1.6GB/s sequential read/writes in 2014 based on this 2008 headline
. It took them more than 5 years to get a $1/GB @ faster than 500MB/s sequential read/writes out the door. I would expect mainstream SATA Express SSDs by 2020.
Maybe by then 4K resolution *IPS displays will cost less than $1,000. The ones being peddled now at below $2,000 are TN displays.