* Faster startup - Since no spin-up required.
* Faster read time In some cases, twice or more than that of the fastest hard drives.[citation needed]
* Faster than conventional disks on random I/O
* Low read and write latency (seek) time, hundreds of times faster than a mechanical disk.
o Faster boot and application launch time in certain cases - Result of the faster seek time. But only if application already resides in flash and is more dependent on read speed than other issues, eg. OS bootup that detects devices will not be significantly speeded up even with faster seeks & reads. See Amdahl's law.
* Long lifetime[1] - Back of the envelope calculations suggest that flash based SSDs can be written to at full speed continuously for 51 years before exceeding the flash memory's write endurance.
o However, it should be noted that certain SCSI hard drives have MTBF of 1.5 million hours (~175 years) and normal SATA harddrives have MTBF of 500,000 hours (~57 years). [2]
* Few to no mechanical parts
o Lower power consumption and heat production - no mechanical parts results in less power consumption.
o No noise - Lack of mechanical parts makes the SSD completely silent.
o Better mechanical reliability - Lack of mechanical parts results in less wear and tear. High level of ability to endure extreme shock, vibration and temperatures[citation needed], which apply to laptops and other mobile devices, or when transported.
* Security - allowing a very quick "wipe" of all data stored.
* Deterministic performance - unlike mechanical hard drives, performance of SSDs is constant and deterministic across the entire storage. "Seek" time is constant, and performance does not deteriorate as the media fills up (See: Fragmentation).