In terms of IOPS, the 660p reached 152K/187K IOPS read/write. Here the 660p attained an overall score of 2280 points with sequential read and write speeds of 1.76GB/s and 1.64GB/s, respectively. Transfer speeds are displayed on the left with IOPS results on the right.Īs we normally see, AS SSD’s scores show a little lower than the previous benchmarks.

For the most part, AS SSD tests can be considered the ‘worst case scenario’ in obtaining data transfer speeds and many enthusiasts like AS SSD for their needs. The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. 4K performance proves to be very good with a read speed of 55MB/s and a write speed of 130MB/s at QD 1.

Sequential read hit 1932MB/s and sequential write hit 1794MB/s. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.Ĭrystal Disk Mark reveals similar performance as ATTO. In ATTO the Intel 660p achieved a max of 1.91GB/s read and 1.78GB/s write speeds.Ĭrystal Disk Benchmark is used to measure read and write performance through a sampling of random data which is, for the most part, incompressible.

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.

Good ssd results crystal disk mark