The DELL Precision T5810 has an SSD storage media which is faster than most recently released personal computers. Most new comparable spec personal computers have an HDD storage media. 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 across all medium processor cores personal computers that were launched around the same time as the Precision T5810.
The worst storage speed amongst similar types of desktop computer is HDD.