HD Tune Pro
Version and / or Patch Used: 4.61
Developer Homepage: http://www.hdtune.com
Product Homepage: http://www.hdtune.com
This is the first time we've had a chance to look at mSATA performance on the new Z87 platform and you can see across the board we're ahead compared to the previous generation Z77 boards.
Write and read performance is 50 - 100MB/s up depending on the area.