Caution - SSD GOODRAM CL100 gen.2 480gb also happens on QLC! How not to make a mistake when choosing.

SSDs from the manufacturer GOODRAM with a capacity of 480 gigabytes of the CL100 gen2 series appeared on the market at quite reasonable prices. Looks like


Beauty at a low price. And the name is not the latest.It would seem that you need to take it - after all, in general, in modern SSDs, typical operating parameters differ in many respects in benchmarks, but in practice it is quite difficult to grasp the subtleties. We do not consider the subtleties of buffering, controllers, technical processes and other things here. Our price here is good and for most it is more than enough without any sarcasm. 480 gigabytes is the next mainstream volume: here the system will fit comfortably and you can play. The manufacturer helpfully informs us

offers the product in tandem with the Marvell 1120 controller and the nameless TLC NAND flash.
At first glance everything is fine. 1120 - although as ancient as mammoth wool and bufferless, it is nevertheless a completely adequate dual-core controller in 2019, especially considering the price of the product.

But an incomprehensible situation looms with a flash. Everyone is used to TLC for a long time - it is understandable. Although it happens very in different incarnations. Nevertheless, for the buyer it is enough to know what is inside the TLC and this does not cause unrest. And how many layers were laid there and who exactly, according to which technical process and the like - is absolutely not important for the mass.
Taking into account the price in stores, the product should “score a goal” with its competitors, but... suddenly it could be a barbell.
Just now, under the hood of the new product, an unpleasant picture surfaced in one of the RuNet reviews.

The author of the material titled Goodram CL100 gen.2,480GB: full of surprises, ”unexpectedly discovered that his product sample was made from a QLC flash, which could somewhat obscure the joy of the purchase. No, everything will be fine with speeds - SLC caching will close all holes and the user will most likely not notice anything. But here is the resource ... The situation with QLC with it is by definition worse than that of TLC. And okay, the controller would be the latest with exclusive error handling technologies, etc., but no - 1120 sample of 2014. So wait for the miracles of endurance from QLC is not only worth it, but you also need to understand that each recorded unit of information in the SLC cache, which, as we recall, is programmatically made from the main QLC array, is equal to 4 records in the QLC resource - because in SLC mode the cell works binary.
But, judging by the screenshot and the author’s conclusions, GOODRAMclearly understood the essence and soldered as many as 768 physical gigabytes in a drive in 6 banks with gigabit chips, compared to the marketing 480. Quite a big overprovisioning of approximately 288 gigs. 480 is also marketing and decimal. In total, the generous manufacturer decided to throw in about 1.6 times more flash, taking into account the fact that the declared QLC resource on average is expected to be less, in fact, more than 1.6 times the average expected for TLC.
Moreover, the QLC in the product is almost the newest fromMicron! Either Micron knows something about QLC that the marketing flyers are hiding, or one of two things. As the famous cartoon character used to say: “This is zzzzzh for a reason!” As a result, 768 GB of the latest brand QLC in a cheap product declared as having 480 GB TLC!

I asked a friend to open the nearest productGOODRAM SSD 480gb gen.2 and see what happens there. Everything is legal - the drives were purchased for installation and they would have been opened anyway next week, but we are interested in today.
And there was this:

Studying the screen shows that in anotherthe product sample from a guaranteed original source is soldered by the declared TLC from Hynix in 72 layers with a total volume of 512 GB. Those. here everything corresponds to the application, but also, not to say that with heat, with heat. 72 layers is already a solid state yesterday, and not today. But we remember the price.

What is going on?

And what happens is that you must carefully read the manufacturer’s sites.

Goodram honestly writes on its website without a smile thatThe volumes are not the same (but this song has been known for a long time and we are not talking about it) and the specifications may change. Those. tomorrow there could be an OLC and all as part of a public announcement about a specification change without notice.

Beauty, but why then write more confidently about TLC?

In general, such a situation among the topopovmanufacturers all the time - ADATA alone is worth it. SiliconMotion in commodity drives as it was lit up on it, etc. Even much more level Kingston indulges in such.

And what is in the basement divisions with Alidepends strictly on the weather on Mars. Moreover, by the way, something quite decent can also stand there, but, apparently, from the games with weaker quality. Or something purely situational is something completely good, but of the residues merged by the manufacturer cheaply - you can’t guess in any way, only the “scientific poke” method.

In general, in our case, the manufacturer trolls the buyer a little, but does it in a legal way – There is a public notice about such opportunities, but, like the EULA, few people read it.

Objectively, the drive on the declared TLC at the price of a purchase is quite adequate, but is there a chance to confidently not step on the described rake?

There is.

The fact is that these products can be distinguishedat the purchasing stage. At Goodram, the packaging of this series allows you to see the back of the drive and the firmware version is indicated there. These versions are visible in the screenshots: R1029A for the case with QLC and V4.9 for TLC. There is a possibility that variations with other types of memory are possible. Well, at least the controller is still claimed by Marvell.

The initially declared option should look like this.

So, when choosing an inexpensive drive, it hasIt makes sense to use this information because... the original drive announced by GOODRAM on TLC is a good candidate, and the price of the lottery today is about 50 USD and not everyone will want to see the unpleasant “no win” on the ticket.

Reputable players try not to allow this to happen, and GOODRAM was considered quite decent. On the other hand, nothing prevented QLC from honestly declaring – the prices are quite decent.

This is the situation, little ones!