CrystalDiskMark is a synthetic benchmark that tests both sequential and random small and mid-sized file transfers using incompressible data. It provides a quick look at best and worst case scenarios with regard to SSD performance, best case being larger sequential transfers and worse case being small, random transfers.
The Micron M500DC series drives also put up some decent numbers in CrystalDiskMark. Sequential and large data transfers were competitive, though the drives didn't lead the pack. In the 4K transfer tests, especially at high queue depths though, the Micron M500DC series drives did very well.