Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible. We tested the Agility 4 with both sample typs and the compressible data sample is shown on the left.
Testing with compressible data definitely results in higher read performance, however, the write performance with incompressible data definitely wasn’t expected. Gaining results of over 400MB/s is already a rarity, regardless of the type of drive used, but getting low 4k random write performance of over 100MB/s is almost unheard of. These scores are still lower than the Vertex 4 by a stretch but ahead of the rest of the pack. It is too bad we couldn’t see higher read performance to go along with that.
Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data. AS SSD, for the most part, gives us the worst case scenario in SSD transfer speeds because of its use of incompressible data and many enthusiasts like to AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.
AS SSD doesn’t display anything unique with respect to transfer speed, however, the write Access Time of .032ms is very quick and the equal high 4k-64Thrd IOPS read and write results are also not seen often. The overall point score of 861 is above average but not the highest we have seen to date, with some SSDs breaking the 1000 point mark.
AS SSD Copy Benchmark creates three files and transfers them from one portion of the SSD to another, monitoring only the high transfer speed reached and total time to move each file. This Copy Bench is not the best and we would like to have seen transfer speeds above the SATA 2 range.
The white material seen on the inside of the cover provides thermal protection as it dissipates heat from the Indy controller to the exterior casing.