Hard disk drive (HDD) is one of the most essential parts of any computer on which the operating system is install alongside with user’s personal data. It’s also a speed factor that determines the quality of the overall system responsibility and functionality. But the irritating fact regarding this kind of devices is its negative effects on the system performance, as it’s considered the slowest part existing in modern computer and most computer users realize this fact and many of them just went their own way to find a speedy alternative to replace this big piece of slowness, and for sure they learned something about the so-called solid-state drive (SSD) as the best replacement for the traditional mechanical hard disk drive.
Here, in this article, you are supposed to understand the differences between these two storage devices which will help you later make the right decision of purchase in the future if you ever want to change your current hard drive.
HDD contains spinning magnetic platters which are read and written to by heads floating on a cushion of air along a series of guides known as ‘actuator arms’, while an SSD contains no moving parts, and instead of spinning platters uses a special type of memory known as NAND flash.
I am sure that almost every kid in this world was taught the fable of rabbit in race with turtle, and how the latter won it. It is an amusing story but have you ever wondered why the traditional hard drive manufacturers would widely promote this story among our societies? 😀
Anyway, let’s get serious.
When it comes to speed traditional hard disk drive manufacturers must cover their face out of shame. The slowest SSD available out there can be more than 2x faster than the fastest hard drive available nowadays.
A SSD-equipped PC will boot in seconds, certainly under a minute. A hard drive requires time to speed up to operating specs, and will continue to be slower than a SSD during normal operation. A PC or Mac with an SSD boots faster, launches apps faster, and has higher overall performance. HDDs can only access the data faster the closer it is from the read write heads, while all parts of the SSD can be accessed at once.
Solid State Drives feature a non-mechanical design of NAND flash mounted on circuit boards, and are shock resistant up to 1500g/0.5ms. That means SSD has no moving parts, so it is more likely to keep your data safe in the event that you drop your laptop bag or your system is shaken about by an earthquake while it’s operating. Whereas Hard Drives consist of various moving parts making them susceptible to shock and damage.
Moreover most hard drives park their read/write heads when the system is off, but they are flying over the drive platter at hundreds of miles an hour when they are in operation. Besides, even parking brakes have limits. If you’re rough on your equipment, a SSD is recommended.
4. Power Consumption
SSDs have very low power consumption, especially when idle or reading data. They use significantly less power at peak load than hard drives, less than 2W vs. 6W for an HDD. Their energy efficiency can deliver longer battery life in notebooks, less power strain on system, and a cooler computing environment. On the other hand, unlike the 3.5-inch desktop hard drive which consumes lots of power, the standard laptop hard drive is responsible for only a small fraction of total power use, so this may only extend laptop battery life by 5 or 10 minutes, but, again, even that could be a benefit worth having.
With no moving parts, SSDs run at near silent operation and never disturb your computing experience during gaming or movies, unlike loud, whirring hard disc drives. Even the quietest HDD will emit a bit of noise when it is in use from the drive spinning or the read arm moving back and forth, particularly if it’s in a system that’s been banged about or in an all-metal system where it’s been shoddily installed. Faster hard drives will make more noise than slower ones.
6. Sperm Health
Huh? What has this to do with this topic? You may be asking. Well, if you plan in future to have kids you must preserve the health of your sperm, right? While placing a laptop on the laps may appear to be the most natural thing to do, studies show that its hard drive generates temperatures high enough to damage sperms. As an energy-efficient storage upgrade for your desktop or laptop, SSDs require very little power to operate that translates into significantly less heat output by your system.
Ok, that still does not justify placing the laptop on your lap/thighs, and you must avoid this posture in all cases. But at least it proves SSDs to be healthier (but not healthy still) for your babies 🙂
This might be the only disadvantage of SSDs compared with HDDs. SSD is much more expensive than HDD in terms of dollar per GB. For example, for $100 you can barely get a 120 GB SSD drive, but with the same amount you get 3TB HDD. But if you balance the advantages altogether with this one disadvantage, most users who are fed up with the slowness of HDD will want to enjoy the high-speed of SSD.
After all if you are interested to buy an SSD to drop into your computer you may consider this list which contains the best brands of this drive available in the market today. You can find there other options also that may be more suitable for your requirements.