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.
Crystal DiskMark returns performance virtually identical to that of ATTO, and we get a great first look at something very common with all SD cards, very low 4K read and write performance. SD card storage is great for just that…media storage, whereas not so beneficial for operating system files as one might see in Win 10.
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.
92MB/s read and 73MB/s write are actually great speeds for the monster we know as AS SSD. You might notice that we never followed through with 4K transfer speeds and that is because it takes an incredible amount of time for this….not worth considering we already know low 4K speeds are very poor.
ANVIL’S STORAGE UTILITIES PROFESSIONAL 1.1.0
Anvil’s Storage Utilities is the best software program available for benchmarking flash media. Not only does it give an accurate look at transfer speeds and throughput, but also, it goes even further by identifying file sizes, disk access times, as well as system and device identification. It even has many extra features such as endurance torture testing and a TRIM button feature to manually trigger TRIM on supported devices.
QUICKBENCH VER. 4.0
QuickBench is another benchmark tool used to measure the transfer speeds and performance of storage devices. QuickBench is a good tool for confirming the previously produced read and write speeds seen above.