Most ssds solid state drives are made mostly of flash memory like an omelet is made mostly of eggs but flash memory can be.
All flash storage vs ssd.
However ssd does not necessarily use flash as its storage medium.
Modern ssd hard drives are flash based so today there s not really a difference today between ssd and flash.
Flash storage or flash memory is the eggs parts of the analogy.
Each of them has its pros and cons.
External hard drive vs.
It is a vital factor.
Ssd is simply a disk that doesn t have moving parts and flash is the implementation that allows that to happen.
Ssds use a form of flash memory to read write and store data but flash storage is not necessary to be ssd.
Usb thumb drives have used flash storage for a long time as well but the quality of the flash storage in those is typically much lower than the flash memory used in ssds.
When flash technology is used for enterprise storage the term flash drive or flash array is often used interchangeably with solid state drive ssd.
Ssd just means a hard disk that doesn t move.
The cd is a medium and cd drive is the storage.
This means much worse performance etc.
Similarly ssd is the device for storage whereas flash is the medium.
The flash can be designed to connect directly with the pcie bus removing the additional latency of first going through a sas interface as an ssd must.
Here is flash storage vs ssd for performance and capacity.
In contrast to ssds a purpose built architecture can be designed to deliver the maximum performance that flash can provide.
Because it uses integrated circuit technology flash storage is a solid state technology meaning it has no moving parts.
Ssd read speed is about 550 mb s and the write speed is 520 s.
When installed in a single pci e slot the flash storage read speed is approximately 1100mb s and the write speed is 975mb s.
The flash storage capacity can vary from 256gb to 3tb or even more.
The relationship between ssd and flash is just like the relationship between a cd drive and a cd.