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.
Teamgroup's T-Force Cardea Zero Z440 drive sits between the two other PCIe Gen 4 drives we've tested being slightly faster than the Corsair Force MP600 and slightly slower than Patriot's Viper VP4100 drive.