The Apple Mac Mini Late 2014 has a faster storage speed than most PCs that are a similar age to it. This computer has an SSD storage medium, whereas most desktop computers that were released more than two years ago have an HDD storage medium. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.
This desktop computer's storage speed (SSD) is actually the best storage speed amongst all computers of this age and type.
Amongst comparable types of desktop computer the worst storage speed is HDD.