How do QLC SSDs work, and should you avoid them? | Upscaled

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QLC is a type of flash that promises to enable big, cheap flash drives and SSDs, but it comes with some serious drawbacks. QLC stores four bits of data in each cell, up from 3 in TLC (most SSDs) and 2 in MLC (like Samsung's 960 pro).

Each additional bit of data increases storage capacity, but reduces the drive's lifespan and read/write speed. Manufacturers are using a host of tricks to work around these problems, but do they really fix the problems, or should you just avoid QLC for now?

Check out the QLC reviews we sampled here:
TechteamGB
Benchmark Tests

For our full list of sources, check out this doc:

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This format is one of the best for tech nerds on YouTube. Pls never stop.

knechtnoobrecht-c
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This is the best thing that Engadget publishes. Great series, great host.

xabiergranja
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Is it just me, or is the audio sync on this extremely off?

renkoh
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Upscaled series has been amazing so long.. loving it.. Can you do a video on monitors especially with color spaces (sRGB, Adobe RGB ), response times and panel types (TN, VA, IPS) especially Monitors vs big TV's

hitmanvivek
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I love how well done these videos are. The presenter does a great job explaining complex electronics. Thank you sir.

WarriorsPhoto
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I watched this on another website -- a news site, then came here to watch it again. This is sure good content by Engadget. This guy really communicatest the issues with SSD and storage tech.

PoeLemic
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wow, plethora of knowledge under 15 min (most of which I couldn't absorb)!

AbhimanyuKumar-btxf
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Absolutely love this series!! Best thing on Engadget

Hellball
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Your voice seems to be delayed from your mouth actually moving oof

FreakMC
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This channel is amazing, keep up the good work!

gabcaires
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The WD Blue SN550 1TB and Crucial P1 1TB are both 104.99 USD right now on Amazon. Prices for NVME SSD's have never been better, to the point of being competitive with SATA drives in terms of pricing. Pay 5-10 bucks more for 3 to 4 times the performance with 5 year warranties.

ashkara
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MORE OF THESE. Loved the Intel dive. Talk about mesh vs ring CPU design next! Also AMD CCX Zen architecture!

Multimeter
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I recently upgraded my main computer with an SSD so I've been reading/watching everything I can about this technology. This is an excellent video to get you started on different SSD types and to make sure you know exactly what you're buying when you finally decide to upgrade your computer. I feel Crucial MX500 is still the best (budget) option cause it's TLC and it comes with an actual DRAM module, which does most of the writing heavy lifting (as opposed to that SLC "emulation" cache nonsense that some TLC/QLC drives use), saving you precious write cycles, thus increasing your drive's operation speed AND lifespan.

jeanmont
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QLC should be cheapest option to long time HDD users. But, you should only go with QLC drive if it is cheaper at least 30% than TLC drive that is similar size and equivalent model. And never go NVMe drive with QLC. The last tech for NVMe drive is TLC, that's it. QLC and worse tech than that is limited to and shouldn't be considered beyond SATA3.0. That's it.

mysterychemical
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Engadget pls don’t abandon this series !

manu
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A related video topic is NVMe 2.0. In particular, I find the question of when it will come to the consumer market and how interfaces might change as a result exciting. - When all storage media, including hard disks, "speak" NVMe 2.0, will this be the end for SATA?

Chuck_vs._The_Comment_Section
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I care more about reliability (long term integrity of data) than price or size —or even speed (or the technology and infrastructure [material] that they’re made of). I’d love to have a 1TB thumb drive but am a little scared —each cell may be made of FEWER ATOMS, if you get my drift, thus easier to deplete. (In the days of mechanical hard drives, they increased capacity by sticking a second identical platter into the same-sized case!!
Can you advise or console me?😊?)

whatzause
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Wow, I finally understand the SSD jargons. Clear and concise explaination!

junaidzaka
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About 1 year later, there is still no sign of PLC or hybrid SSDs. However, at least Samsung's QLC Sata SSDs have become an interesting alternative. Depending on when you look in the price comparison portal of your choice, certain models are significantly cheaper than TLC SSDs.

Chuck_vs._The_Comment_Section
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Speaking of SSDs: Why is SATA still the dominant interface for drives? Sooner or later, the up to 600 MB/s of SATA will simply become hopelessly obsolete and more and more a bottleneck.
It's not like there aren't alternatives that can achieve much higher speeds. U.2, U.3 and SAS.

Chuck_vs._The_Comment_Section