Crystalmark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. We are using V3.0 x64.
With incompressible data, the Agility 3 performance suffers a little, but CrystalDiskMark offers an alternative ‘compressible' setting called 0x00 fill.
With the 0x00 0Fill setting, the test results are much higher scoring almost 500 MB/s with both sequential read and write. It is generally slower than the Vertex 3 MAX IOPS, pictured above. Although the 4k QD32 write speed is rated at 373.8MB/s compared to the MAX IOPS score of 359.7 MB/s.