Ssds use a form of flash memory to read write and store data but flash storage is not necessary to be ssd.
All flash storage vs ssd.
The cd is a medium and cd drive is the storage.
Modern ssd hard drives are flash based so today there s not really a difference today between ssd and flash.
Ssd read speed is about 550 mb s and the write speed is 520 s.
When flash technology is used for enterprise storage the term flash drive or flash array is often used interchangeably with solid state drive ssd.
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.
Most ssds solid state drives are made mostly of flash memory like an omelet is made mostly of eggs but flash memory can be.
The relationship between ssd and flash is just like the relationship between a cd drive and a cd.
Flash drives are more robust.
Because it uses integrated circuit technology flash storage is a solid state technology meaning it has no moving parts.
This means much worse performance etc.
The flash storage capacity can vary from 256gb to 3tb or even more.
However ssd does not necessarily use flash as its storage medium.
When installed in a single pci e slot the flash storage read speed is approximately 1100mb s and the write speed is 975mb s.
Similarly ssd is the device for storage whereas flash is the medium.
Here is flash storage vs ssd for performance and capacity.
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.
An ssd performs the same basic function as a hard drive but data is instead stored on interconnected flash memory chips that retain the data even when there s no power flowing through them.
Flash storage or flash memory is the eggs parts of the analogy.
Ssd just means a hard disk that doesn t move.
Each of them has its pros and cons.
If you drop it to the ground it will still keep working.
It is a vital factor.