There's nothing slow there, those different results are at the level of statistical error and no way that it would be noticeable at all !!!
BTW: You are using wrong benchmark, it's made for HDDs not SSD. http://www.techspot.com/downloads/6014-as-ssd-benchmark.html
is much better at benchmarking SSDs.
Another thing, you didn't benchmark 4K and 4K-64Thrd, they are way more important for work. Speed you were checking is for copying files and can wary a lot in everyday use depending on file size and type.