What are the benefits of solid-state hard drives versus mechanical ones?

Solid-State drives (Solid state drives), many people are accustomed to being called SSD solid-state drives. It is composed of control unit and Memory unit (Flash chip, DRAM chip), which relies on low power and high performance, and becomes popular among computer users. So, what are the benefits of solid-state drives? The following computer Pepsi Network Small series for us to analyze the advantages and disadvantages of SSD solid-state drives, a rise in knowledge!

What are the benefits of solid-state drives

　　The advantages of solid-state drives:

1, start fast

No motor accelerates the rotation process.

2, read delay small

Without the head, fast Random read, the reading delay is very small. According to the relevant test: two computers in the same configuration of the computer, the laptop with solid state drive from the boot to the desktop has taken a total of only 18 seconds, and the laptop with the traditional hard drive for 31 seconds, nearly half the two gap.

3, fragmentation does not affect read time

A relatively fixed read time. Because the addressing time is independent of the data storage location, disk fragmentation does not affect the read time.

4. Fast writing Speed

DRAM-based solid-state hard disk write speed is very fast

5, no noise

Because there are no mechanical motors and fans, the noise value at work is 0 db. Some high-end or high-volume products are equipped with fans and therefore still generate noise.

6. Low calorific value

Low-capacity flash-based solid-state drives have lower energy consumption and calorific value in the working state, but higher energy consumption for high-end or high-volume products.

7. No mechanical failure occurs

There is no mechanical moving parts, no mechanical failure, no fear of collision, shock, vibration. This will not affect normal use even in the case of high-speed movement or even rollover tilt, and can minimize the likelihood of data loss if a laptop falls accidentally or collides with a hard object.

8, the working temperature range is bigger

A typical hard drive can only work within a 5-55 ℃ range. Most solid-state drives can work in-10~70℃, and some industrial solid-state drives can work in-40~85℃, or even a larger temperature range (E.g:runcore-55~135℃) for military-grade products.

9. Small size and light weight

The low volume solid-state hard disk is smaller and lighter than the same capacity mechanical hard disk. But this advantage gradually weakens with the increase of capacity. Until 256GB, solid-state drives are still lighter than ordinary mechanical hard drives of the same capacity.

10, vibration resistance

Compared to traditional hard drives, solid-state hard drives have a much stronger seismic capability, making data more secure to store.

In addition, solid-state drives have a low power consumption characteristics, compared to mechanical hard drives more energy saving.

　　Solid State HDD Disadvantage:

1, Small capacity

Solid-State hard disk development has been a few years, but the current SSD capacity is still not large enough, mainstream users still choose 120GB or 240GB of products, capacity of a larger number, the general need to double the price.

And the mechanical hard drive, the basic standard is now the 1TB, capacity is several times the SSD.

2, the price is expensive

At present, 120GB of solid-state hard disk price and 1TB mechanical hard disk, at the same price, the capacity difference is about 8 times times.

3, SSD life may be smaller

Solid-State drives are long-lived, and in fact mechanical hard drives are available, but the theoretical entry of SSDs is not as high as traditional mechanical hard drives. However, the general SSD, normal use, 3-5 years without pressure, many SSD can be guaranteed 1-3 years, so the life do not worry too much.

Solid state and mechanical hard drive contrast