Many new SSD owners who cant wait to test the performance of their SSD often grab this program and run a quick test, not realizing that they are testing with incompressible data rather than compressible data used in testing by manufacturers. ![]() Our results of 556MB/s read and 499MB/s write are almost dead on and well above what we expected for a first release of a SATA 3 mSATA SSD.Ĭrystal 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. The original specifications believed for the Runcore T50 mSATA 6Gbps 120GB SSD were a mere 554MB/s read and 469MB/s write which are now altered on Runcore’s Specifications Page to 540MB/s read and 500MB/s write. ![]() 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 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. ![]() ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications.
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