Install an SSD for the Maximum Performance Gain
These days SSDs (Solid-State Drives) are getting more and more attention. Advanced computer users recommend switching to SSDs and a lot of manufacturers have already stopped installing conventional spinning disks on their latest models. They now offer lighter, thinner and faster laptops with SSD storage. But should you upgrade to SSD, what’s in it for you and are there any drawbacks? Let’s find out!
What is an SSD?
Basically, a solid-state drive (SSD) is a data storage device that
uses solid-state memory to store data. SSDs have the same purpose as
conventional mechanical hard drives, but there is one crucial difference – they
are electronic devices and don’t have any mechanical parts. Unlike HDDs, SSDs
don’t store data on spinning platters, but use flash memory instead.
As of 2010, most SSDs use NAND flash memory. More expensive SSDs (such as the ones used by businesses) use single-level cell memory (SLC), which is faster, more reliable and more expensive. A 1TB SLC solid-state drive can cost as much as a good used car with low mileage. As for consumer-oriented SSDs, they use multi-level cell memory (MLC) that is cheaper, a bit slower and a bit less reliable. But in any case, even MLC disks are a lot faster than magnetic drives and a lot more reliable, too.
SSDs have a lot of benefits, but the two most important ones are speed and reliability. Compared to conventional hard drives, solid-state drives are a lot faster. In fact, some people experience a whopping 1,000 MB/sec read speed. Today, the fastest SSDs are SATA 6.0 GB/sec.
HDDs are the most common performance bottlenecks on any system. Why? Simply because unlike RAM and CPU, hard drives have mechanical moving parts. This means that every time you need to open, save, modify a file or do anything else, the disk needs to spin. Worse still, things like file fragmentation can dramatically reduce HDD speed. As for SSDs, fragmentation doesn’t affect their speed because they can simultaneously grab bits of information from anywhere on the drive. To cut a long story short, comparing an HDD and an SSD from the speed perspective is like comparing a bicycle and a Ferrari. So, if you want a big performance gain – switch to SSD storage.
Another major SSD benefit is reliability. Unlike HDDs, solid-state drives don’t suffer from shock or drop damage. This is especially important for people who travel frequently (like myself). The number of times my heart skipped a beat when my laptop bag got handled quite unceremoniously by airport security staff! Now that I’ve switched to SSD storage, I don’t have to worry so much.
Here are some additional benefits of switching to SSD:
However, SSDs have some disadvantages.
Don’t get me wrong, I am an SSD fan. Nevertheless, there are some disadvantages that can’t be overlooked.
The most noticeable disadvantages of SSDs are limited storage capacity (compared to traditional hard drives) and high price per GB. You can buy a 1TB hard drive for something like $100, whereas a 128GB SATA 6GB/sec SSD drive costs around $200. A significant difference, isn’t it? Also keep in mind that the more storage space an SSD has, the more expensive it becomes because the price per GB never changes. That’s why a lot of people still prefer having traditional hard drives, especially if they store a lot of files.
Another disadvantage of SSD drives is that each flash memory cell on an SSD can endure only so many write cycles. This means that if you subject your SSD to heavy use, its data retention will be shorter than with conventional hard drive. That’s why you should think twice when writing to an SSD. And that’s one of the reasons why it’s not a good idea to defrag solid-state drives, as defragmentation means unnecessary data writes to the disk.
Luckily, SSD manufacturers are doing all they can to maximize SSD lifetime. They implement various firmware schemes to load-level SSDs and use TRIM technology to maximize the life of a solid-state drive. In any case, SSDs are not likely to become unusable on a typical home system any time earlier than an HDD will experience a fatal crash. So the nature of flash memory and the limited (in theory) amount of write cycles shouldn’t put you off buying an SSD.
How to maximize SSD performance
SSDs are very fast right out of the box, but there are a few things that you can do to make them perform even better and increase their lifetime:
In my opinion, SSDs are worth every penny you pay for them, because the performance gain is tremendous. So, if you have the extra cash, get an SSD and enjoy the speed.