SSD vs HDD

Most people now buy laptops for their computing needs and have to make the decision between getting either a Solid State Drive (SSD) or Hard Disk Drive (HDD) as the storage component.

Before we dive into comparing SSD vs HDD technology, let’s take a quick look at each type of drive.

What’s the difference between the two?

There are advantages and disadvantages to each type of drive, and deciding on which type is right for you comes down to what you use your computer for.

Hard Disk Drive (HDD)

SSD vs HDD

A hard disk drive is the main, and usually largest, data storage hardware device in a computer. The operating system, software titles, and most other files are stored in the hard disk drive.

A traditional hard drive contains a circular disc – known as a platter – that stores your data. The disc spins, allowing the read-write arm to read data on the disc (or write data to it) as it passes.

Inside a hard drive is something that looks more than a bit like an old record player: There’s a platter, or stacked platters, which spin around a central axis — a spindle — typically at about 5,400 to 7,200 revolutions per minute.

A solid-state drive (SSD)

SSD vs HDD

An SSD (solid-state drive) is a type of nonvolatile storage media that stores persistent data on solid-state flash memory.

You’re probably familiar with USB memory sticks – SSD can be thought of as an oversized and more sophisticated version of the humble USB memory stick. Like a memory stick, there are no moving parts to an SSD.

One of the best uses for an SSD in a PC is as a boot drive. This means installing a small-ish capacity drive on which your Windows 10 operating system will live and boot up from every day.

Capacity

These days you can get a 2TB hard drive for an affordable price, which offers you plenty of space.

In comparison, SSD is expensive, and the cost increases with the increase of per GB/TB.

Any base model of HDD is 500 GB capacity whereas for SSD base model is 128 GB. To Hard drive offers the infinite possibility of magnetic storage on disk.

Storage capacity is an essential criterion to consider when opting to buy an HDD.

Speed

The difference between hard drives and solid-state drives is in the technology used to store and retrieve data. HDD utilizes magnetic disk as storage, whereas SSD utilizes memory.

HDDs: As HDDs are the mechanical Drive the flow of data depends on the rpm of the disk. But if we compare with the New latest SSDs the speed of HDDs is very low.

SSDs: As SSDs technology uses electronic interfaces the speed of the SSDs is very very fast as compared to HDD. The Speed is almost 6 times faster than the older HDDs.

Advantages and Disadvantages

AttributeSSD (Solid State Drive)HDD (Hard Disk Drive)
Power Draw / Battery LifeLess power draw, averages 2 – 3 watts, resulting in 30+ minute battery boostMore power draw averages 6 – 7 watts and therefore uses more battery
CostExpensive, roughly $0.20 per gigabyte (based on buying a 1TB drive)Only around $0.03 per gigabyte, very cheap (buying a 4TB model)



Operating System Boot-TimeAround 10-13 seconds average bootup timeAround 30-40 seconds average bootup time
NoiseThere are no moving parts and as such no soundAudible clicks and spinning can be heard
VibrationNo vibration as there are no moving partsThe spinning of the platters can sometimes result in vibration
Heat ProducedLower power draw and no moving parts so little heat is producedHDD 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 RateMeantime between failure rate of 2.0 million hoursMeantime between failure rate of 1.5 million hours
File Copy / Write SpeedGenerally above 200 MB/s and up to 550 MB/s for cutting edge drivesThe range can be anywhere from 50 – 120MB / s
EncryptionFull Disk Encryption (FDE) Supported on some modelsFull Disk Encryption (FDE) Supported on some models
File Opening SpeedUp to 30% faster than HDDSlower than SSD



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