Solid state hard drives have been available to consumers for a few years and available to military and industrial markets since the mid 90’s but it has only been recently that they have become affordable. Solid state drives (SSDs) are different from normal hard drives (HDD) in that instead of storing data on spinning disks with moveable read/write heads they store information in memory chips. The added benefit here is that the lack of moving parts makes them silent, faster and less likely to have corrupt data.
I recently had the opportunity to test out an OCZ Vertex 3 120GB solid state drive so let’s see how well it compares in a real world test.
Price
The first thing you need to consider if you want a solid state drive is the price, which is undeniably more than you would pay for a comparable normal hard drive. The price per gigabyte for normal hard drives has plummeted over the last ten years. Storage is cheap and it’s now more likely that you will upgrade/replace your whole computer before the hard drive becomes close to full.
Note: because normal hard drives have become so large and cheap we can’t do a direct comparison based on size. Instead we have compared the drives on price per gigabyte.
Price Comparison
OCZ Vertex 3 120GB (SSDs)
$2.50 /price per gigabyte
Western Digital Caviar Black 1TB (HDD)
$0.10 /price per gigabyte
In this case the direct comparison speaks for itself. The price for SSDs has decreased significantly in recent years but they still have the price of a luxury item.
Victory to Western Digital Caviar Black (HDD)
Access Speed
Here is the important category for those interested in a solid state drive and where the hardware really shines.
OCZ Vertex 3 120GB (SSDs)
Speed: 530 mb/s and 1ms access time
Western Digital Caviar Black 1TB (HDD)
110 mb/s and 12ms access
As you can see from the above numbers the SSD is able to transfer data almost five times faster than a normal high end hard drive and can read written data a full 12 times faster.
Victory to OCZ Vertex 3 (SSDs)
Reliability
In the early years of SSD development they were not known for their sustainability but as the technology improved they have become known as one of the most reliable ways to store your data. While we obviously can’t test this ourselves SSDs have an estimated life span of 50 years. Comparatively, normal hard drives are prone to failure over time based on usage and have an estimated life span of 5-8 years.
Victory to OCZ Vertex 3 (SSDs
Other Considerations
Noise:
SSD- SSDs have no moving parts and make no sound
HDD- HDDs have moving parts (heads, spindle motor) and have varying levels of sound depending upon model.
Victory to OCZ Vertex 3 (SSDs
Secure Data:
SSD- Data cannot be securely erased by overwriting the original file without special “Secure Erase” procedures built into the drive.
HDD- HDDs can overwrite data directly on the drive in any particular sector.
Victory to Western Digital Caviar Black (HDD)
Power consumption:
SSD- High performance SSDs generally requires 1/2 to 1/3 the power of normal HDDs.
Victory to OCZ Vertex 3 (SSDs
Final Thoughts
Solid state drives offer vastly superior performance over there standard hard drive counterparts but this performance comes as a hefty cost. In my own tests computer boot up times have been decreased by roughly 15 seconds and many of the programs I use everyday have had the operation lag cut in half.
Despite this performance boost solid state drives are not for everyone. If you primarily use your computer for word-processing, basic internet usage and other light activities you probably won’t see a big enough performance boost to make the price worthwhile. However, if you are a graphic designer, video editor or any other high impact computer user the difference a solid state drive will make will be night and day.
- Richard Keene
IT Computer Support of New York
Design and Optimization Department




















