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.
There are many that dislike ATTO as it measures in highly compressible data that manufacturers use to determine and publish their specifications; it is an unreal number for even the typical PC user. Looking past the read and write performance highs, we pay close attention to the performance progression as file size increases. The mark of a great SSD is a steady progression throughout, for both read and write. The mark of a top SATA 3 SSD today gets us SATA 3 speeds from the 4K file size. The Samsung 850 Pro does this and it is a great start.
Crystal Disk Benchmark is used to measure read and write performance through sampling of highly compressible data (oFill/1Fill), or random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.
The performance of this Crystal DiskMark result is the highest we have ever had, bar none. Just the low 4K rtandom write performance of 163MB/s is something that we never thought we would see in a typical notebook consumer SSD.
The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. 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. Transfer speeds are displayed on the left with IOPS results on the right.
Once again, these are the highest results we have ever attained in both throughput and IOPS for AS SSD when comparing similar drives. We actually retested a number of times trying to reach the 100K mark.
This AS SSD Copy Bench test is a true to life evaluation as AS SSD creates three files (ISO/Program/Game), and simply moves them from one part of the SSD to another, recording their top speed and total transfer time. Once again, these are great results, however, more attune to what we see from similar upper tier SSDs.
ANVIL STORAGE UTILITIES PROFESSIONAL
Anvil Storage Utilities (ASU) are the most complete test bed available for the solid state drive today. The benchmark displays test results for, not only throughput but also, IOPS and Disk Access Times. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing.
Once again, all results are amongst the best we have ever seen, right down to the disk access times (resp.time) Anvil is one of our favorite benchmarks as it provides a clear picture of all performance variables, including system and SSD descriptions.