Recent years, solid state drive (SSD) as a new type of digital storage catches most computer users’ eyes. Compared to traditional digital storage hard drive disk (HDD), SSD become more and more popular for its portable size and high performance on data reading/writing. Does this means the SSD will take the place of HDD? Let’s make a short comparison:


Subject Hard Disk Drive(HDD) Solid State Drive(SSD)
Time to Spin Up Up to 2 seconds before HDD can read/write to drive Instantaneous, able to read/write immediately
Read Speed (SATA) Roughly 100MB/s, depending on level of fragmentation. 250 MB/s
Write Speed (SATA) 50-70 MB/s, depending on level of fragmentation. 200-250MB/s.
Storage size Large Low
Data Restorability Easy to recover Hard to recover
Encryption HDD's can overwrite encrypted data right on top of the old data SSD's need a secure erase feature or total partition encryption. (Can not overwrite data, data must be erased first)
Fragmentation Level of fragmentation of an HDD will significantly reduce read/write speeds No need to defragment solid state drives due to not having any read/write heads to find the data
Lifespan Long Short
Sound Typically make noticeable sound during read/write and spin up times. Have no moving parts and make no sound.
Cost Only around $0.10 per gigabyte, very cheap Expensive, in excess of $1.50-$3 per gigabyte

From the “SSD VS HDD” table you could view the difference between SSD and HDD clearly.

SSD Advantage
As you see speed is the main advantage of SSD hard drives. It is faster to startup time and read/write speed than in traditional hard drives. Therefore, SSD is a better choice for installing Windows OS, especially for Windows 7, or the operation depend on high speed image processing.
SSD Disadvantage
The low storage size and the high price may the main disadvantage of SSD. Now most SSD storage size is from 64 GB to 256 GB, and cost from $100 to thousands. It is clearly that if you want to select SSD as a large storage device that’s not a wise option. On the other hand, for the low data restorability, we don’t suggest use SSD to store the important data

From all analysis above, we could see that maybe one day when the SSD would instead HDD, but not today, the best way to configure our storage device is keep both SSD and HDD. Make SSD as the primary storage device for installing Windows OS, and HDD for large data storage. To achieve this purpose most users have to reinstall their OS, and other programs. Is there any way to migrate our OS from old HDD to new SSD directly? The answer is “Yes”. You could view more details information from: OS Migration Tool.