The HP Z640 has a faster storage speed than most many processor cores PCs that were released around the same time as it. This computer has an HDD storage media, whereas most many processor cores PCs that have been on the market for around the same time as it have a Flash storage media. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.
This personal computer's storage speed (HDD) is actually the worst storage speed across all many processor cores PCs that are a similar age to the Z640.
The best storage speed amongst similar types of personal computer is SSD.