CrystalDiskMark is a piece of software that allows you to benchmark your hard drive or solid state drive, the purpose of benchmarking is to make sure that your HDD or SSD is performing optimally. CrystalDiskMark analyzes your hard drives by running a series of tests and displaying the results on the screen. It is useful for comparing the speed of both portable and local storage devices.
Download: CrystalDiskMark 8.0.4c | Portable ~4.0 MB (Open Source)
View: CrystalDiskMark Homepage