WD Blue 1TB Internal SSD

What is Solid State Drives?

Up until recently, PC buyers had little option about what type of storage to obtain in a laptop or desktop. If you purchased an ultraportable, you likely had a solid-state drive (SSD) as the primary drive. Each desktop or laptop form factor had a hard disk drive (HDD). Now, you can configure your system with either an HDD or SSD, or in some cases both. But how do you pick? We describe the differences between SSDs and HDDs (or hard disks), and walk you through the benefits and drawback of both to help you decide.

What is a Solid State Drive?

HDD and SSD Difference

The standard spinning hard disk is the fundamental nonvolatile storage on a computer system. That is, info on it doesn’t “go away” when you switch off the system, as holds true of information saved in RAM. A hard disks is essentially a metal plate with a magnetic coating that stores your information. A read/write head on an arm accesses the data while the plates are spinning.

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An SSD does functionally everything a hard disk drive does, however information is instead stored on interconnected flash memory chips that maintain the information even when there’s no power present. The chips can either be completely set up on the system’s motherboard (as on some small laptops and ultrabooks), on a PCI Express (PCIe) card (in some high-end workstations), or in a box that’s sized, formed, and wired to slot in for a laptop or desktop’s hard disk drive (common on everything else). These flash memory chips are of a various type than is used in USB thumb drives, and are typically much faster and more reliable. SSDs are consequently more expensive than USB thumb drives of the same capabilities.

Note: We’ll be talking mostly about internal drives in this story, but practically everything uses to external hard drives as well. External drives can be found in both large desktop and compact portable kind aspects, and SSDs are slowly ending up being a majority of the external market.

SSD Storage Advantages and Disadvantages

Both SSDs and hard drives do the same task: They boot your system, and store your applications and individual files. But each type of storage has its own distinct function set. How do they differ, and why would you wish to get one over the other?

WD Blue 1TB Internal SSD
WD Blue 1TB Internal SSD Solid State Drive – SATA 6Gbs 2.5 Inch – WDS100T1B0A (Amazon: Price $279.99)

Price: SSDs are more costly than hard drives in terms of dollar per gigabyte. A 1TB internal 2.5-inch disk drive costs about $50, but since this writing, an SSD of the same capability and kind factor begins at $220. That translates into 5 cents per gigabyte for the hard drive and 22 cents per gigabyte for the SSD. Since hard drives use older, more recognized technology, they will stay less costly for the near future. Those additional hundreds for the SSD may push your system price over spending plan.

Maximum and Common Capacity: Although SSD systems top out at 4TB, those are still unusual and expensive. You’re more likely to discover 500GB to 1TB units as main drives in systems. While 500GB is thought about a “base” hard disk drive in 2016, pricing issues can push that down to 128GB for lower-priced SSD-based systems. Multimedia users will need a lot more, with 1TB to 4TB drives common in high-end systems. Essentially, the more storage capability, the more things you can continue your PC. Cloud-based (Internet) storage might benefit housing files you prepare to share amongst your phone, tablet, and PC, but local storage is cheaper, and you only need to buy it when.

Speed: This is where SSDs shine. An SSD-equipped PC will boot in less than a minute, and often in seconds. A hard disk requires time to speed up to running specifications, and will continue to be slower than an SSD during typical use. A PC or Mac with an SSD boots much faster, launches and runs apps quicker, and transfers files much faster. Whether it’s for enjoyable, school, or business, the additional speed may be the difference in between finishing on time and stopping working.

Fragmentation: Because of their rotary recording surfaces, hard drives work best with bigger files that are put down in contiguous blocks. That method, the drive head can begin and end its read in one constant motion. When hard drives start to fill, big files can end up being spread around the disk platter, causing the drive to struggle with what’s called fragmentation. While read/write algorithms have improved to the point that the impact is reduced, hard drives can still become fragmented. SSDs can’t, nevertheless, due to the fact that the lack of a physical read head indicates data can be saved anywhere. Therefore, SSDs are inherently faster.

Resilience: An SSD has no moving parts, so it is most likely to keep your data safe on the occasion that you drop your laptop bag or your system is shaken about by an earthquake while it’s running. Most hard disk drives park their read/write heads when the system is off, but they are flying over the drive platter at a distance of a few nanometers when they function. Besides, even parking brakes have limits. If you’re rough on your equipment, an SSD is recommended.

Schedule: Hard drives are more abundant in budget plan and older systems, but SSDs are becoming more prevalent in recently released laptops. That stated, the item lists from Western Digital, Toshiba, Seagate, Samsung, and Hitachi are still skewed in favor of disk drive models over SSDs. For PCs and Macs, internal hard disks will not be going away entirely, a minimum of for the next few years. SSD design lines are growing in number: Witness the number of thin laptops with 256 to 512GB SSDs set up in place of hard disk drives.

Form Factors: Because hard drives count on spinning plates, there is a limitation to how small they can be made. There was an effort to make smaller sized 1.8-inch spinning hard drives, but that’s stalled at about 320GB, considering that the phablet and smartphone producers have picked flash memory for their main storage. SSDs have no such restriction, so they can continue to diminish as time goes on. SSDs are available in 2.5-inch laptop drive-sized boxes, however that’s only for benefit. As laptops become slimmer and tablets take over as primary Web browsing platforms, you’ll begin to see the adoption of SSDs escalate.

Sound: Even the quietest hard disk will release a little bit of sound when it is in use from the drive spinning or the read arm moving back and forth, especially if it’s in a system that’s been banged about or if it’s been poorly installed in an all-metal system. Faster hard drives will make more sound than slower ones. SSDs make essentially no noise at all, given that they’re non-mechanical.

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General: Hard drives win on price, capability, and accessibility. SSDs work best if speed, ruggedness, form element, noise, or fragmentation (technically part of speed) are important aspects to you. If it weren’t for the price and capacity issues, SSDs would be the winner hands down.

As far as durability, while it holds true that SSDs wear out with time (each cell in a flash memory bank can be written and eliminated a minimal number of times), thanks to TRIM command innovation that dynamically optimizes these read/write cycles, you’re most likely to discard the system for obsolescence (after six years approximately) before you start encountering read/write errors with an SSD. If you’re truly worried, there are a number of tools that monitor the S.M.A.R.T. status of your disk drive or SSD, and will let you understand if you’re approaching the drive’s rated end of life. The possible exceptions are high-end multimedia users like video editors who read and compose information continuously, however those users will require the larger capabilities of hard disks anyway. Hard disks will eventually break from constant use as well, because they use physical recording methods. 

The Right Storage for You

So, does an SSD or HDD (or a hybrid of the two) fit your requirements? Let’s break it down:


  • Enthusiast multimedia users and heavy downloaders: Video collectors need area, and you can just get to 4TB of area cheaply with disk drives.
  • Budget buyers: Ditto. Lots of cheap space. SSDs are too expensive for $500 PC purchasers.
  • Changing a 1TB hard disk will be cheaper than changing a 500GB SSD.
  • General users: General users are a toss-up. Folks who prefer to download their media files locally will still require a hard disk with more capacity. 


  • Road warriors: People who shove their laptops into their bags indiscriminately will desire the additional security of an SSD. That laptop might not be completely asleep when you violently shut it to capture your next flight. This also consists of folks who operate in the field, like energy workers and university scientists.
  • Speed: If you require things done now, spend the additional bucks for fast boot-ups and app launches. Supplement with a storage SSD or hard drive if you need extra space.
  • Graphic arts and engineering experts: Yes, I understand I stated they need disk drives, however the speed of an SSD might make the difference between finishing two propositions for your client and completing five. These users are prime candidates for dual-drive systems.

It’s unclear whether SSDs will totally change traditional spinning hard disk drives, particularly with shared cloud storage waiting in the wings. The price of SSDs is coming down, however they’re still too pricey to absolutely replace the terabytes of data that some users have in their PCs and Macs. Cloud storage isn’t complimentary, either: You’ll continue to pay as long as you desire individual storage on the Internet.

Hybrid Drives and External Use

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If you’re interested in the technology of an SSD, however discover the existing slate of readily available drives to be too pricey, there’s hope: hybrid drives. These drives combine both and HDD and SSD into one device. There a couple various versions of this. First, there are the SSHDs, or solid state hybrid drives. These drives are full-sized HDDs (typically around 1-2TBs) that come geared up with an extra cache of SSD NAND memory (typically a few GBs worth). SSHDs work by discovering which files you use frequently, and composes them to the quickly-accessible SSD section of memory. All other files are stored on the HDD’s spinning disc. While an SSHD won’t give you the toughness and lower power requirements of an SSD, they should still provide an appreciable uptick in speed for particular procedures.

Next, there are the double drives, which integrate two drives (an SSD and HDD) in one. Your computer will check out and treat the SSD and HDD as separate drives, meaning you can conserve files and install programs to either one. Once again, the HDD half will include more memory, but given that you’ll have a complete SSD included, you can put a lot of files on it to make the most of the faster load times. A dual drive costs more than either an SSHD or HDD, but is still a more economical alternative than acquiring a high-capacity SSD.

You can discover both SSHDs and double drives that can fit a 2.5 ″ slot along with 3.5 ″ choices. In addition to these two hybrids, which ready options for those with area for just one drive, one could likewise decide to purchase multiple separate drives depending upon their setup and readily available installing area.
In addition to these other choices, there is also the option of using a drive as an external storage device. There are drives made specifically as external storage devices; however, essentially any drive that can be installed in a PC can be placed into an external housing package and connected to a PC by means of USB. The device will work as a drive normally would, however can be brought with you, so you can access your saved files with any PC or laptop.

In general, while there many various aspects to consider when buying a new hard disk, there are numerous options offered. At this point, unless you have a clear use-case demanding one type of drive over the other, either an SSD or HDD (or SSHD, or double drive, etc) ought to serve you just fine.


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