The Thinkstation P500 has a faster storage speed than most similar spec computers that have been available for more than a year. This personal computer has an SSD storage medium, whereas most personal computers of a similar spec and age 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 actually the best storage speed across all computers of a similar type and age to the Thinkstation P500.
Across comparable types of computer the worst storage speed is HDD.