SSDs – what are they and do I want one

So whilst browsing (or dreaming maybe!) for your next laptop, be it a Mac or a Windows machine, you might have noticed that (certainly at the upper end) many of them are coming with something called an SSD, usually in 128GB or 256GB capacities.

What are these mysterious SSDs, why are their sizes in funny numbers rather than the 500GB, 750GB or 1TB sizes of everything else, and most of all, why are they so expensive?

An SSD is a Solid State Drive – these are used in place of HDD (Hard Disk Drive). An HDD is a mechanical device with a spindle where one or more magnetic disk surfaces spin around with a small “head” to read and write data. An SSD has a bunch of memory chips in place of this disk and consequently no mechanical parts (much like your iPhone or newer iPod).

HDDs are great because they are cheap and can provide a lot of storage.

SSDs however are expensive and seem quite small in comparison.

What gives?

Because they are not mechanical they have two big advantages. One is speed. Even a low-end SSD will be significantly faster than an HHD as the act of reading and writing to memory is vastly faster than reading and writing to a disk. Second is reliability and robustness. As there are no moving parts, an SSD will not wear out (in the traditional sense at least) and will tolerate more bumps etc than a mechanical drive. Indeed most laptop failures are due to the hard drive failing.

And as you can imagine, this comes at a price. Compared to mechanical disks, memory chips are expensive – you can see this when you compare the prices of iPhones/iPods with differing memory sizes). This is why you only tend to see SSDs fitted to higher end Ultrabooks and Apple MacBook computers.

So are they worth it? In a nutshell, yes.

Intel SSD

The performance gain is amazing. OK, you lose some space, but then do you really need to store your entire iTunes library on your computer?

We did an experiment a while ago and replaced the hard drive in a old Windows 7 desktop. Prior to the upgrade, from the Windows splash screen appearing to the computer being logged in was about 90 seconds. With the SSD in place this fell to an almost unbelievable 4 seconds. And once booted the machine was snappier and more responsive to boot.

The only big catch is that unless you are a tinkerer, it’s not worth doing the upgrade yourself as it can be quite involved. However, if you are in the market for a new computer, it’s worth exploring especially if it’s a laptop. If you have someone like use helping you with your technology, then upgrading at the time of purchase is a far easier process and worthy of considering.

Want to know more about how SSDs can help in your business? Get in touch and we can see if we can help you.