Hard disk drive (HDD) Rotations Per Minute (RPM) is a measure of how fast the disks in an HDD spin. The higher the RPM, the faster the HDD can access data. However, higher RPMs also mean more noise and heat. Most HDDs have an RPM of 5400, 7200, or 10000.
Checking the RPM of an HDD can be useful for troubleshooting performance issues or for comparing different HDDs. There are a few different ways to check the RPM of an HDD.