SSD versus HDD: Which is the best to buy now?

SSD versus HDD

Which is the best to buy “SDD or HD” in 2022?

The question is quite obvious as both technologies are available now. To find the answer we need to compare a few factors closely. I think factors like “cost-efficiency”, “Storage-capacity”, “Reliability” and “Power efficiency and usage” are the key factors to be considered. Let’s look more closely into the depth of both technologies. Let’s establish the points based on logic to decide the best options for you, “SDD or HD”.

Let’s make a tabular format to list out the difference for a quick look.

SDD HDD

 

  SDD HDD
Full-Form Solid State Drive Hard Disk Drive
Cost More expensive Comparatively chipper
Base technology Electronic Circuits means IC’s (based on NAND GATES) Spinning discs
Battery-Consumption Lower than HDD Higher
Speed Factor Faster than HDD Comparatively Slower
Weight Lightweight device Heavy
Size Factor Smaller, even as small as a “Postage Stamp” Bigger
Data transfer Technique Random method Sequential method
Read/Write Time Very fast Higher Read/Write time.
Fragmentation Problems No Yes
“Latency” Less Higher
Noise Issue No Yes
Magnetism Effect No effect Yes, vulnerable from magnets

 

THE SDD: Solid State Device: What is it?

SSD versus HDD

Pic Credit: Intel.com

SDD is the abbreviation of “Solid State Device”. SDD is a device that can be considered like a “big USB drive”. SSD uses “NAND” technology like “USB devices”. This technology is nothing but “Flash Memory”. How does the “NAND” work? At the base level of SSD, “GATE” transistors are there to record data through the “presence of charge” or “lack of charge”. The “GATES” are preliminary structured in a “Grid Pattern”, later “Grids” form “block”. Each row that forms the grid is finally called “Page”. This is the very basic idea of “SSD” technology, completely different from HDD. Using “integrated Circuits” rather than “spinning platters”, has a great impact on “Size” and “performance”.

The absence of a large “Spinning-Disk” makes the SSDs comparatively small in “size and shape”, even smaller like a “postage stamp”. So, using SSD as storage has its benefit to make “slimmer” laptops and tablets or “2 in Ones”.

The “Speed Factor”: SDD vs. HDD

Obviously, “Speed” is one of the main “factors” to decide which one to buy. SDD beats easily HDD whenever the “Speed” is concerned. SDD got no “spinning” discs like HDD, rather pure ICs (Integrated Circuits) that makeup SDD. So, there is comparatively less “Waiting Time”, “Loading-Time” and “Read/Write time”. So, whenever you are involved in “complex computing” or “heavy/ multi-tasks computing operations”, SDD is a more logical and better option than “HDD”. Let’s make the decision straighter with an example.

A 15.36TB enterprise-grade SSD, Intel SSD “D5-P5316”, renders nearly 7200 MB/S, whereas the compatible “Hard Disc”, 14TB “Seagate-Exos-2×14” renders only 500 or 520 MB/S. So, this practical difference supports why people who are not on a budget go for SDD, the main reason being the superior speed leading to performance benefit.

We all are well aware of “SATA” and “PCIe” interfaces. SATA being the “legacy technology” is much slower than the technically advanced “PCIe” interface with much more “channels” for “data” transfer. So, it is obvious “SDD” with the “PCIe” interface is pretty much faster than the “HDD” with the “old and Slower” SATA interface.

The Reliability & Durability Issues: The SDD vs. HDD:

SDD is more durable as it got no “spinning” discs/platter or arms, being less vulnerable to physical damage. Whereas, “HDD” is much more vulnerable to physical damage with its “spinning” physical parts.So, if you drop your laptop with an “HDD”, certainly you need to worry about much.

The NOISE issue: SDD vs. HDD:

“Noise” issue is another important issue to be concerned as it blocks “smooth” performance. “Noise” is a mechanical issue. “SDD” is “free” from this “Noise” issue as it uses “Integrated Circuits”. SDD being “all-electronic” is free from these hazards.

Whereas, we all know “spinning Disc” inside “HDD” generates a little bit of noise and vibration while it rotates. “Noise/vibration” issue is directly proportional to the “rotation” speed of the “platter”, faster rotation leads to more noise.

The “Power consumption”: The SDD vs. HDD:

The battery issue is an important issue and much more to consider. If your laptop gets an “HDD” as a storage device, you will find a battery issue. “HDD” will drain the battery faster as it gets “Platter”/ “Spinning physical Parts” inside. The “Platter” uses a considerable amount of energy to start rotating from the “still” condition. Also, Energy is drained for the “Friction” and “Noise” due to the platter’s rotation.On the other hand, “SDD” drains the battery much less as it gets no such “Physical Moving Parts”. So, “SDD” is a much more “Power Friendly” option for you.

Final words: what is the best option?

I think “SDD” is the popular choice, but not a “must buy” product. Whether to buy “SDD” or not depends upon the “characteristics” of “Data” that you are dealing with. If we are dealing with data like “thousands of old photos”, technically known as “Cold-Data” as not required frequent access, we must go for “HDD” as a cost-effective option. Whereas, we are dealing with “Real-Time Business-Transactions”, “Video and Photo editing”, technically known as “Hot Data” as required quick and frequent access, “SDD” is a perfect choice.

So, I advise if you are not a “speed fanatics” like “gamer”, if you are not involved in “Real-Time Business Transactions”, and if you just use your laptop/device in a relaxed manner like watching a movie, accessing old photos, you better stick to the old “Cost Effective” HDD.

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