blackram
Reviewer
- Joined
- Dec 17, 2010
- Messages
- 14,008
The SSD might not be one of the gadgets that you may have heard of amid all of the hype these days surrounding tablets, smartphones, etc. But believe me, it's one of the gadgets you should be desiring if you have a desktop or a laptop PC that you spend a lot of time in front of (like most of us). Unlike other gadgets, it's not a full standalone device, it is just a component which gets installed inside a PC. But I really think this should be at the top of most people's list of items to desire for your birthday or Christmas, it'll probably be more useful than a tablet anyways.
SSD stands for Solid-State Drive, and what it is is a replacement for the venerable Hard Disk Drive (HDD). The HDD has been the premier medium for long-term data storage on PC's for 30 years now. How is the SSD different from the HDD? The HDD is a spinning mechanical platter of magnetic material that gets read and written to by a magnetic head not much different in concept than a magnetic cassette tape or VCR tape head of the olden days. It's one of the last refuges of mechanical & magnetic storage left in electronics today. SSD on the other hand has no spinning disk, or any mechanical components, it's all just a bunch of computer chips, which makes them very fast. The SSD is similar in concept to a USB thumb drive, in that it uses a type of non-volatile memory chip to store data rather than a mechanical magnetic material. However, an SSD is much faster than any thumb drive, and in fact it's much faster than any HDD.
Okay, so it's faster, but is it noticeably faster? Yup. If you boot from an SSD rather than an HDD, your boot times can drop by as much as 8 times, literally! On my old HDD, I used to boot to the Windows screen in about 45 seconds, that has now dropped down to 15 seconds! Some people report as little as 10 seconds. And as you know, in a PC booting to the Windows screen is not the end of booting, there's plenty of loading that goes on even after you get into the Windows screen. I measured from the time the computer starts to boot Windows to the time the disk goes totally quiet was as much as 8 minutes in my case, on the HDD. On the SSD, that entire process is just 1 minute! Programs load a lot faster too, such as the Firefox browser or Thunderbird email. Thunderbird used to take upto 10 seconds to load completely, now it just takes 1 second. And of course, there's no mechanical parts, so you can't hear any disk noise at all.
If you've seen the Windows Experience Index in Windows 7, one of the measurements they do is the primary hard drive speed test. The fastest hard drives only get a rating of 5.9 out of 7.9 on this test. The same test on an SSD yielded 7.6 out of 7.9!
So what are the disadvantages? Capacity, HDD's still hold a ton more data than SSD's can. For the same price, an SSD would probably have a capacity of 250GB, whereas an HDD would be available at 4TB's (i.e. 16x more)! The price/capacity ratio is much higher on an HDD. Even the smallest, cheapest HDD's these days will hold at least 4 times more data than an SDD. However, the capacity of HDD's are getting to the point of "good enough" for most purposes. Early SSD's from about 4 or 5 years ago only had capacities in the 20 or 40GB range (which really isn't good enough for holding Windows), and now they are upto 250GB (which is "good enough").
However on most desktops, it's not an either-or scenario, you can have both an SSD and an HDD at the same time. I have re-purposed my old boot HDD to become just a data storage drive, where I store videos, pictures, songs, etc., while the SSD stores the Windows OS. You get the best of both worlds, the speed of the SSD and the storage capacity of the HDD.
SSD stands for Solid-State Drive, and what it is is a replacement for the venerable Hard Disk Drive (HDD). The HDD has been the premier medium for long-term data storage on PC's for 30 years now. How is the SSD different from the HDD? The HDD is a spinning mechanical platter of magnetic material that gets read and written to by a magnetic head not much different in concept than a magnetic cassette tape or VCR tape head of the olden days. It's one of the last refuges of mechanical & magnetic storage left in electronics today. SSD on the other hand has no spinning disk, or any mechanical components, it's all just a bunch of computer chips, which makes them very fast. The SSD is similar in concept to a USB thumb drive, in that it uses a type of non-volatile memory chip to store data rather than a mechanical magnetic material. However, an SSD is much faster than any thumb drive, and in fact it's much faster than any HDD.
Okay, so it's faster, but is it noticeably faster? Yup. If you boot from an SSD rather than an HDD, your boot times can drop by as much as 8 times, literally! On my old HDD, I used to boot to the Windows screen in about 45 seconds, that has now dropped down to 15 seconds! Some people report as little as 10 seconds. And as you know, in a PC booting to the Windows screen is not the end of booting, there's plenty of loading that goes on even after you get into the Windows screen. I measured from the time the computer starts to boot Windows to the time the disk goes totally quiet was as much as 8 minutes in my case, on the HDD. On the SSD, that entire process is just 1 minute! Programs load a lot faster too, such as the Firefox browser or Thunderbird email. Thunderbird used to take upto 10 seconds to load completely, now it just takes 1 second. And of course, there's no mechanical parts, so you can't hear any disk noise at all.
If you've seen the Windows Experience Index in Windows 7, one of the measurements they do is the primary hard drive speed test. The fastest hard drives only get a rating of 5.9 out of 7.9 on this test. The same test on an SSD yielded 7.6 out of 7.9!
So what are the disadvantages? Capacity, HDD's still hold a ton more data than SSD's can. For the same price, an SSD would probably have a capacity of 250GB, whereas an HDD would be available at 4TB's (i.e. 16x more)! The price/capacity ratio is much higher on an HDD. Even the smallest, cheapest HDD's these days will hold at least 4 times more data than an SDD. However, the capacity of HDD's are getting to the point of "good enough" for most purposes. Early SSD's from about 4 or 5 years ago only had capacities in the 20 or 40GB range (which really isn't good enough for holding Windows), and now they are upto 250GB (which is "good enough").
However on most desktops, it's not an either-or scenario, you can have both an SSD and an HDD at the same time. I have re-purposed my old boot HDD to become just a data storage drive, where I store videos, pictures, songs, etc., while the SSD stores the Windows OS. You get the best of both worlds, the speed of the SSD and the storage capacity of the HDD.