SSD VS HDD The Ultimate Battle
- Either you
are binging on technology or actually buying a
storage hard disk drive for your computer, we
will explain to you the ins and outs of HDD & SSD technology
,
First, we are going to explore the basics:
SSD vs HDD: the basics
How hard drives
work
The hard
drive of a computer is a device that stores all the software installed
on a computer as well as all the data files created and used by this
software this includes any documents you have created and downloaded, as
like music photos videos……..
The HARD Drive is a form of permanent
storage, rather than temporary memory such as random-access
“RAM” which explains that when
turning off the computer, the files endure safely stored
on the drive so you can use them the next time you turn on your computer.
There are
two general types of hard drives:
HARD DISK DRIVES (HDD)
Specifications
HDD
Which at
the heart of every drive is a stack of high-speed spinning discs with a
recording head flying over each surface, each disc is coated with
a film of microscopic magnetized meta grains and the DATA doesn’t
remain there in a form that you can recognize indeed it is recorded as a magnetic pattern formed by groups of those tiny grains in
each group, also known as a BIT all of the grains have
their magnetization’s aligned in one of two possible
states which correspond to zeroes and ones, Data
is written to the nearest available area. There is an algorithm that
processes the data before it’s written, allowing the firmware to detect and
correct errors.
The platters spin at
preset speeds (4200 rpm to 7200 rpm for consumer computers), those speeds correlate
to read/write rates. The higher the preset speed, the faster a hard drive will
be able to read and write data.
Solid-State Drives
(SSD)
Specifications
SDD:
Which have
no moving mechanical parts, but use flash memory
like the kind found in USB flash drives, Instead,
it uses NAND flash memory. The more NAND (Negative-AND) memory chips an SSD
has, the more storage capacity it has. Modern technology allows SSDs to have
more NAND chips than ever, which means SSDs can have capacities similar to HDDs.
Now let's review the difference between HDD and
SSD
SPEED
HDD
- higher latency, longer write/read times; and supports fewer input-output operations per sec (IOPs) compared to SSD
SSD
- has lower latency, faster read/write and support more inputs output operations per sec
- Comparing between
SSDs vs HDDs, speed is where we really begin to see a difference,
SSD and HDD speeds are measured in MB/s (megabytes per second) for both
read (how fast the drive can read data) and write (how fast data can be
written to the drive).
HDD drive use a
spinning platter, so the speed is immensely depending
on the revolution per minute (RPM) the average drive
is capable of 7,200 RPM, and even higher we
are talking 10,000 RPM.
Worth the mention there are other
elements to determine HDD speed, such as a capacity for instance a
SATA 3 hard drive at 5,400 RPM will have speeds of around 100MB/s,
while a 7,200 RPM will be 150MB/s.
- For the matter that SSD doesn’t have any moving parts like
mentioned before their speeds aren’t dependent on RPMs, but on the
technology – and the data connection – of the drive.
A solid-state drive
with a SATA 3 connection should achieve around 550MB/s
read and 520MB/s write speeds, though some will be faster – but will max
out at 600MB/s
So, you’re looking at
around 10 times the speed if you go for one of these SSDs. When it comes to
speed and performance, SSDs are definitely the way to go.
SSD
vs HDD: capacity
-Capacities range
from 40GB up to 12TB for commercial hard drives, while there are even
larger capacities for enterprise use? you can get a 2TB
hard drive, which offers you plenty of space. HDDs
around the 8TB to 12TB size are primarily used for servers and NAS devices,
where you need a lot of space for holding backups.
So, HDDs are good for
storing lots of large files, which makes them good for holding photos, videos
and games.
SSD
- Generally weren’t capable of such large capacities, but due to modern technology an SDD with terabytes of storage is eligible now; although it often come with a tremendously high price tag.Notice
If you
are seeking to hold
programs such as an operating system for which you
want to take advantage of the SSD’s HIGHER SPEED,
and then use an HDD to store other files where speed isn’t as important, a
smaller SSD around 160GB-256GB is a good idea to go
for.
HEAT, ELECTRICITY, NOIS
- use more electricity to rotate the platters generation heat and noise
SSD
- Since no such rotation is needed in solid-state drives, they use less power and do not generate heat or noise.
Components
HDD
- Contains moving parts -
a motor-driven spindle that holds one or more flat circular disks
(called platters) coated with a thin layer of magnetic material. Read-and-write
heads are positioned on top of the disks; all this is encased in a metal case.
SDD
- has no moving parts; it is essentially a memory chip. It is interconnected, integrated circuits (ICs) with an interface connector. There are three basic components - controller, cache, and capacitor.
The benefits
HDD
- The benefits of a hard
disk drive are that they are a proven technology, are frequently less expensive
than a solid-state drive for the same amount of storage. Currently, HDDs are
also available with more storage space than SSDs.
SSD
- Solid-state drives
deliver faster load times for games, applications, and movies. Because of the
technology they use, SSDs are lighter and more able to withstand being moved
and dropped. In addition, solid-state drives use less energy, keeping the
computer they’re used in cooler.
FINAL OUTLOOK
- As we mentioned
earlier, if you have the option then it may be worth getting a smaller SSD for
your operating system and apps, along with an HDD to store your files. There are
also hybrid drives, known as SSHDs, which offer the best of both worlds, with
the speeds of SSDs and the capacities of HDDs in a single drive, and which are
worth considering if you don’t have space in your device for multiple hard
drives.
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