Crystal Disk Benchmark is used to measure read and write performance through sampling of 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.
This is a great way to start off a report, hitting 3.1GB/s read and 2.1GB/s write with low 4K random write performance at 206MB/s. Typically, we might see a drop in performance somewhat when moving from ATTO to Crystal DiskMark, simply because the data being tested is so different (compressible vs incompressible).
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.
The big takeaway in our AS SSD testing is seeing the Toshiba XG5 achieve 300K IOPS and also result in some great speeds during the Copy Benchmark.
ANVIL STORAGE UTILITIES PROFESSIONAL
Anvil’s 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.
Anvil Storage Utilities confirms all that we are seeing, for the most part, and also lets us know that, after formatting, there is 953GB available on the disk for storage.
REAL WORLD FILE TRANSFER
We also wanted to see how performance was in a real-world use when transferring large files to the SSD. For this test, we are going to simply stress write performance by transferring over a 30GB folder of movies off of a 512GB Samsung 950 Pro to the test SSDs and time how long it takes. Once complete we can calculate the average speed.
Once again, the Toshiba XG5 is among the best with an average speed of 1.2GB/s during a real world file transfer of a 30GB video folder.