How
to Choose a Laptop Based on HDD, SSD, CD, DVD and Blu-ray Options
Most
modern laptops are moving away from the traditional mechanical drives in favor
of more durable and smaller solid state options.
This
change is being fueled by the fact that laptops keep getting smaller, and so
their internal space is restricted and no longer accommodating for larger
storage devices.
To
help clear up confusion for buyers, this guide looks at all the various types
of drives that may be in a laptop, and what they can offer.
Hard Drives
Hard
drives (HDDs) are still the most common form of storage in a laptop and are
pretty straight forward.
Generally,
the drive will be referred to by its capacity and rotational speed. Larger
capacity drives tend to perform better than smaller ones and faster spinning
drives, when compared with ones of similar capacity, are usually more
responsive than slower ones.
However,
slower spinning HDDs do have a slight advantage when it comes to laptop running
times because they draw less power.
Laptop
drives are typically 2.5 inches in size and can range from 160 GB up to over 2
TB in capacity. Most systems will have between 500 GB and 1 TB of storage,
which is more than enough for the standard laptop system.
If
you're looking at a laptop to replace your desktop as your primary system that
will hold all your documents, videos, programs, etc., consider getting one with
a hard drive that's 750 GB or larger.
Solid State
Drives
Solid
state drives (SSDs) are starting to replace hard drives in more laptops, especially
the new ultrathin laptops.
These
types of hard drives use a set of flash memory chips rather than a magnetic
platter to store the data. They provide faster data access, lower power
consumption, and higher reliability.
The
downside is that SSDs don't come in such large capacities as traditional hard
drives. Plus, they usually cost a lot more.
A
typical laptop equipped with a solid state drive will have anywhere from 16 GB
to 512 GB of storage space, although there are some available with more than
500 GB but they are prohibitively expensive. If this is the only storage in the
laptop, it should have at least 120 GB of space but ideally around 240 GB or
more.
The
type of interface that the solid state drive uses can also have a significant
impact on the performance but many companies do not overtly advertise it. Most
inexpensive systems like Chromebooks tend to use eMMC which isn't much more
than a flash memory card, while high performance laptops use the new M.2 cards
with PCI Express (PCIe).
Solid State
Hybrid Drives
If
you want higher performance than a traditional hard drive but don't want to
sacrifice storage capacity, a solid state hybrid drive (SSHD) is another
option. Some companies are referring to these as just hybrid hard drives.
Solid
state hybrid drives include a small amount of solid state memory on a
traditional hard drive that is used to cache frequently used files.
They
do help speed up tasks such as booting up a laptop but they aren't always
faster. In fact, this form of drive is best used when a limited number of
applications are used on a frequent basis.
Smart Response
Technology and SSD Cache
Similar
to hybrid hard drives, some laptops are using both traditional hard drives with
a small solid state drive. The most common form of this uses the Intel Smart
Response Technology. This provides the benefits of the storage capacities of
the hard drive while gaining the speed benefits of a solid state drive.
Unlike
SSHDs, these caching mechanisms usually use larger drives between 16 and 64 GB
that provide a boost to a larger range of frequently used applications, thanks
to the extra space.
Some
older ultrabooks use a form of SSD caching that offers higher storage
capacities or lower costs, but Intel has changed this so that a dedicated solid
state drive is required in order for new machines to meet the ultrabook
branding requirements.
This
is becoming much less common now that prices for SSD's continue to drop.
CD, DVD and
Blu-ray Drives
It
used to be that you were required to have an optical drive on a laptop since
most software was distributed on discs, so it was required in order to load the
program to your computer. However, with the rise of digital distribution and
alternate methods of booting, optical drives are not a requirement like they
once were.
These
days, they're used more for watching movies or playing games, as well as
burning programs to a disc, creating DVDs, or building audio CDs.
If
you do need an optical drive, what type of drive should you get on a laptop?
Well, whatever you end up getting, it should definitely be compatible with
DVDs. One of the great advantages to laptops is their ability to be used as
portable DVD players. Anyone who travels regularly has seen at least one person
pull out a laptop and start watching a movie during the flight.
DVD
writers are pretty much standard for laptops that have an optical drive. They
can fully read and write both CD and DVD formats. This makes them extremely
useful for those looking to watch DVD movies on the go or for editing their own
DVD movies.
Now
that Blu-ray has become the defacto high definition standard, more laptops are
beginning to ship with these drives.
Blu-ray
combo drives have all the features of a traditional DVD burner with the ability
to play Blu-ray movies. Blu-ray writers add the ability to burn lots of data or
video to the BD-R and BD-RE media.
Here
are some optical drive options and the tasks they are best suited for:
Basic
computing w/DVD Playback: DVD-ROM
DVD/CD
Recording: DVD Writer
HD
Video Playback: Blu-ray Combo
HD
Video Recording: Blu-ray Writer
With
current component costs, there is almost no reason that a laptop would not have
a DVD burner if it is going to have an optical drive. What is surprising is
that Blu-ray drives have not become more standard as their prices are also
quite low now for the combo drives. It should also be noted that laptop drives
are generally much slower than similar drives found in desktop systems.
Even
if a laptop does not have an internal optical drive, it's still possible to use
one so long as you have an open USB port for room to attach a USB optical
drive.
Note:
When you purchase a laptop with an optical drive, it may require additional
software beyond the operating system to properly view DVD or Blu-ray movies.
Drive
Accessibility
Drive
accessibility is important when considering whether to upgrade or replace a
damaged drive. It's important to know what you're doing, so you might consider
having an authorized technician open the computer.
This
generally isn't a problem for many people, but in a corporate environment it
can cause increased down time for a worker. Laptops that have drive bays that
are accessible or swappable have the advantage of easy and quick access for
upgrades or replacements.
In
addition to being accessible, it's also important to get an idea of what kind
of drive bays there are and what the size requirements may be. For instance,
the 2.5-inch drive bays used for hard drives and solid state drives can come in
several sizes. The larger 9.5 mm drives often have better performance and
capacities but if the drive bay only fits 7.0 mm drives due to a thin profile,
you need to know that.
Similarly,
some systems use the mSATA or M.2 cards rather than a traditional 2.5-inch hard
drive for their solid state drive. So, if the drives can be accessed and replaced,
be sure to know what type of interfaces and physical size limits there are.