:: SSD Vs HDD Comparison

SSD -  Solid State Drive
  
HDD - Hard Disk Drive
 

Attribute	SSD	HDD
Power Draw / Battery Life	Less power draw, averages 2 – 3 watts, resulting in 30+ minute battery boost	More power draw, averages 6 – 7 watts and therefore uses more battery
Cost	Expensive, $ 1.00 per GB (based on buying a 240 GB drive)	Very cheap, Only around $ 0.075 per GB (based on buying a 4TB model)
Capacity	Typically not larger than 512GB for notebook size drives.	Typically 500GB – 2TB for notebook size drives.
Operating System Boot Time	Around 22 seconds average bootup time	Around 40 seconds average bootup time
Noise	There are no moving parts and as such no sound	Audible clicks and spinning can be heard
Vibration	No vibration as there are no moving parts	The spinning of the platters can sometimes result in vibration
Heat Produced	Lower power draw and no moving parts so little heat is produced	HDD doesn’t produce much heat, but it will have a measurable amount more heat than an SSD due to moving parts and higher power draw
Failure Rate	Mean time between failure rate of 2.0 million hours	Mean time between failure rate of 1.5 million hours
File Copy / Write Speed	Generally above 200 MB/s and up to 500 MB/s for cutting edge drives	The range can be anywhere from 50 – 120MB / s
Encryption	Full Disk Encryption (FDE) Supported on some models	Full Disk Encryption (FDE) Supported on some models
File Opening Speed	Up to 30% faster than HDD	Slower than SSD
Magnetism Affected?	An SSD is safe from any effects of magnetism	Magnets can erase data

If you need a lots of storage capacity and don't want to spend much money and don't about fast a computer booting then you can prefer HDD. But, If you need and able to pay for faster computer booting but don't mind for storage capacity then you can prefer SSD.

Related Post :
              Advantages and Disadvantages of Li-Fi.