ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.
ATTO results are just below listed specs with highs of 550MB/s read and 519MB/s write transfer speeds. By appearance, this SSD seems to be a very stable SSD comfortable with our testing regimen.
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. In the Mushkin Chronos GO deluxe 1.8″ 240GB SSD a deviation is seen when testing with compressible data (left) and incompressible data (right):
Compressible data speaks to your OS and software while incompressible data speaks to music, video and photographs. In the case of incompressible data, the transfer speed ONLY relates to the time it might take to transfer your media and not the play of it in any way.
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 provides decent results and we were happy with the high read and write IOPS results. The ideal in any SSD is to find balanced performance overall. As for the Copy Bench result, we received excellent results with transfering .ISO and game files, however, would have liked to see better with transfer of the program: