AS SSD is a great free tool designed just for benching Solid State Drives. It performs an array of sequential read and write tests, as well as random read and write tests with sequential access times over a portion of the drive. AS SSD includes a sub suite of benchmarks with various file pattern algorithms but this is difficult in trying to judge accurate performance figures.
With the AS SSD benchmark, the 970 EVO read score of 2032 just pips WD's Black NVMe drive. However the write score of 2279 is very impressive and the fastest we have seen for a consumer drive to date by quite some way.