Why SSD’s don’t need Defragmentation?

I recently bought myself a Samsung SSD 840 SATA 6Gb s 2.5-inch disk. Before that, I used to have a normal hard drive with 5400 rpm. The difference was insane! Programs loaded way faster, the whole system worked better.

I had an old notebook with an AMD 64 x2 processor and 4 GB of ram memory in it, so it didn’t work too well even when I uninstalled most things I didn’t use anymore. But after I installed the SSD my notebook became really fast, no more annoying stuttering sound when opening programs anymore…

The only thing is you cannot overclock Samsung SSD 840 because they are locked by Samsung firmware – which is not bad at all.

It’s really great if you want your pc or notebook to become way faster or if you build a new pc – do it! SSD increases performance like crazy!

Today SSD drives are becoming more common. Many users use SSD drives in their computers, and SSD’s can be used to replace hdd (hard disk drives). At least one popular manufacturer has already phased out the production of standard hard-disk models in favor of SSD-only models.

SSD stands for Solid State Drive, whereas HDD stands for Hard Disk Drive. SSDs have no moving parts because they don’t need the mechanics that an HHD does to function. The lack of moving parts makes SSD much faster than HHDs, which is why SSD’s are so popular now among computer enthusiasts who want their system to run fast.

How SSDs are durable and faster then HDDs?

Because SSD doesn’t have any mechanical components, it’s also very durable. Since SSD doesn’t have any moving parts, it’s not susceptible to damage from vibration or impact. SSD is also more resistant to extreme changes in temperature.

But SSD still has some limitations the main one being the limited amount of times SSD can be rewritten before it starts losing data.

This might seem alarming but this was expected since SSD is basically a big flash drive with no moving parts while HDD on the other hand can take how much you throw at it even if you restart your PC multiple times in just one day.

However, SSD is still expected to go through a similar number of reading/write cycles as hdd because SSD uses wear leveling that spreads out writes evenly across all blocks in SSDs which minimizes individual block usage, and wear leveling SSD s will last for a couple of years at least.

Would you mind reading more about WD Blue SSD vs Samsung 860 Evo (comparison)

Now that we know SSD has limits like everything else how can we determine SSD’s limitations? And would defragmentation help SSD perform better, last longer, or even make it run more efficiently?

SSD does not need defragmentation

To find out more about SSD and why it doesn’t benefit from defragmentation read on…

Defragging an SSD is known to wear them out faster because the memory cells where data is stored get worn by repeatedly reading the same location which increases the time between writes.

In one study conducted in 2009, they found that SSDs could only survive 100,000 write cycles before their endurance ran out. SSD s do not have any moving parts so SSD s durability is measured by how many read/write cycles SSD can go through before it starts to malfunction.

In the same study, SSD’s were Defragging and tested to see what effect that has on their performance, they found that defragmentation led to a reduction in SSD’s lifespan by a whopping 43%.

Since SSD does not need defragmentation SSD manufacturers also recommend against using applications that defragment files because these applications end up writing a large number of small file fragments into your drive which wears your SSD progressively with each write action.

Ryan MacWha

I am Ryan! I write about performance-driven and reliable SSDs. I can save your time in decision-making. How about you?