The Mac Mini Late 2014 has a faster storage speed than most few processor core PCs that have been around for more than two years. This computer has an SSD storage medium, whereas most computers that have been available for a comparable time to it 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.
An SSD storage medium is in fact the best storage speed amongst all few processor core PCs that have been on the market for more than two years.
An HDD storage medium is the worst storage speed across comparable types of desktop computer.