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Why are some SSDs significantly more expensive than others?

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Hello everyone!  I've been searching online for a 240GB/250GB SSD and I tend to notice a few things.  For raw cost per gigabyte, PNY and Kingston SSDs tend to be on the cheaper end for storage, ADATA and Transcend and OWC SSDs tend to be moderately priced, and Samsung and Intel (and lately SanDisk with it's ExtremePro) SSDs tend to be very expensive for the same amount of storage.  I've wondered why this is.  I don't think differences in market success and marketing add up to make this huge price difference.

 

So I am wondering this: are Intel and Samsung (and the SanDisk ExtremePro) SSDs more durable?  Do they include more features?  Do they include better warranties?  Do they include better support?

 

If it is due to durability, please inform me and other forum users about why these drives are more durable?  If the price difference is due to features (TRIM, etc.), please include those in your answers.  Warranties, same deal.  Support, same deal.

 

Thank you to everyone who puts the time to answer this earnestly!  9_9

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the speed and how long they will last. Mostly having to do with what kind of flash nan they use.

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Because some use cheap FLASH and some dont. TLC is not as good as NAND

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1 minute ago, GDRRiley said:

the speed and how long they will last. Mostly having to do with what kind of flash nan they use.

Not necessarily. If you look at the (manufacturer) specs of a PNY SSD vs. the Samsung equivalent of the same capacity, the PNY one actually has better performance. Honestly, as a PNY owner, I can wholeheartedly recommend it. I've had it for a few months and I haven't had a single problem so far, I've even disassembled it and reassembled it and it still worked. 

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5 minutes ago, VPrime said:

-snip

 

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So in general, NAND is better, if I understand correctly?  IOPS?

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3 minutes ago, VPrime said:

So in general, NAND is better, if I understand correctly?  IOPS?

It can be better NAND, can be better controller, can be better firmware, can be better testing and validation, can be added features, can be capacitors to protect the drive from sudden power failure, can be just brand name value, or it can be random pricing weirdness.

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I suppose warranty may also come into play. Samsung, as an example, offers 5 years on many of their SSDs, while many other brands offer 3 years. Basically, they're guaranteeing that it should work fine for at least that long, but really, as long as your SSD isn't defective/damaged, isn't too hot, and isn't being torture-tested 24/7, it should be one of the last parts to ever fail in a PC.

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usually SSD can be categorized in 3 different types other then capacity. 

the TLC, MLC, and SLC 

 

TLC (Triple Level Cell) - The most commonly used type in SSD because of it's lower cost, but it has a higher chance of failure compared to the other two. 

MLC (Multi Level Cell) - This type cost a little more expensive compared to TLC, but it does last longer. I am using a ADATA SX900 SSD (MLC) for about 3 years now without any problems. 

SLC (Single Level Cell) - The most expensive, longest lifespan type. Not many daily users will go for these. The majority of users choose TLC because of the cost. 

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