DurabilityDurability: HDDs are better than SSDs Failure rate: SSDs are better than HDDs In my experience, SSD's failure rate is much lower than HDD's. Theoretically, because the former has limiting number of writing, they are supposed to have higher failure rate. However, in fact its failure rate is lower than HDD's. An SSD has no moving head, so it is more likely to protect your data safely even in the situation that your hardware is somewhat shaken. On the other hand, most HDDs rest their read and write heads when the system is off, but they are flying over the drive platter during the operation. If you are harsh on your hardware, an SSD is strongly recommended.
PriceSSDs are more expensive than HDDs in terms of dollar per gigabyte. A 4 TB internal 2.5-inch HDDs hard drive costs between $120 and $160 while an SSD of the same capacity starts at $200. That translates into 3 to 4 cents per gigabyte for the HDD and 20 cents per gigabyte for the SSD. Although the price of SSDs has been falling, the price advantage of HDDs is still strong because of well-established technology.
CapacityAn HDD capacity can be up to 10 TB, whereas an SSD has limited storage capacity (for consumers it goes up to 4TB and for enterprises it runs as high as 60TB.) Even though consumer SSDs top out at 4TB, those are still unusual and unaffordable. An avid computer gamer will require more SSD storage capacity, with 1TB to 4TB drives common in high-end system.
SpeedA computer with an SSD will often boot in just a few seconds. The SSD depends on controller technology, which mainly determines its speed, to execute various operations related to reading and writing data. In contrast, a HDD requires time to accelerate to operating specs and is usually slower than an SSD during normal use.
AvailabilityHDDs are more influential in budget and older systems, but SSDs are becoming more prosperous in recently released high-end computers like Apple. PCs and cheaper laptops are expected to continue to offer HDDs for the next few years.
NoiseEven the quietest HDD makes a little bit of sound when it spins the drive or its read lead is moving. Faster HDDs will create more noise than that are slower. However, SSDs are literally quiet since they are non-mechanical.
PowerAn SSD does not consume electricity spinning up a platter as HDD does. Thus, none of the energy consumed by the SSD is wasted, enabling the drive to run more efficiently.
- SSD: 3-year warranty for home; 5-year warranty for business (10-year warranty in special case).
- HDD: 3-year warranty for home; 5-year warranty for business.
P.S. SSDs have four common malfunctions
- BIOS can't detect SSDs
- sometimes a boot sector is missing, but after restarting the computer everything will be fine.
- the screen suddenly becomes frozen
- as soon as the computer is turned on, its screen becomes blue.