What are the read write speeds of the new Mac Pro's storage options?

just saw an article in last days -

http://www.macperformanceguide.com/blog/index.html

I have the 256 drive and according to Black Magic read & write are about 940 each.

I have a late 2013 MP that I purchased in May 2014 with a 512 SSD and I get the slow speeds like yo show in your second image.

So I got the samsung but its a much earlier generation than the later generation, most likely the mac pro I had graphics issues was using a much later on flash drive....

Yes, it is a SMO512F, which I suspect is the Sandisk 512.

what OS did your mac pro came with the first unit came with El Capitan and the second unit which I exchange from the first one, the second unit came with Mavericks.

https://youtu.be/UtmuFe_CGAI

if you go to that link you would see the speed in a screen capture of the disk speed I did a few weeks ago...