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Samsung Announces TLC-Based 840 EVO SSD

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July 18, 2013 12:30:07 AM

Unless they can make TLC deal with as many write cycles as MLC, then it would be good to stick with MLC.
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July 18, 2013 12:56:00 AM

Wait, why would you want 3 bit blocks? All data is in 8 bit blocks, so a power of 2 block makes the most sense.
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July 18, 2013 1:34:34 AM

Yawwnn... Another ssd that will be marginally faster in some areas and probably slower in others.... The ssd market is so saturated, and since the hdd has pretty much recovered, we're not seeing those ssd price drops that we got used to last year. Ssd market is just standing water right now. All ssd's are basically the same, so the only thing that will set it aside is warranty and company support... At least for most standard consumers.

Something needs to change.
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July 18, 2013 4:05:47 AM

This is pretty cool news, and I think we'll see more of this kind of thing as evidenced by the higher-end SanDisk Extreme II (which uses SLC "caching" while primarily using MLC).

The most important part of this is that Samsung is not raising the price; the 840 in its EVO version will remain one of the least expensive modern SSDs on the market, driving prices down for all of us, while making a drive that is overall no slouch even better. It isn't changing the performance level today for those interested only in the top end, but the technology applied to the higher-end devices could mean even better performance in the devices we are more likely to use. It also may boost performance consistency, which is the weak point of the 840 Pro and most other top-end consumer SSDs today (and can still be much improved even in the best of them).

The life span of MLC drives hasn't been proven, but even its comparatively low numbers on paper means most consumers will have no problems with the drive losing capability in a build's lifetime.
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July 18, 2013 4:12:24 AM

Aw man... and I JUST bought my 840 regular.

PS: Those claiming TLC isn't reliable need to read that article where they tested the life span of MLC specifically the 840 MLC.. and it lasted at minimum 10+ years with heavy usage.
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July 18, 2013 5:15:25 AM

I've a samsung 840 SSD with TLC for about a year. not a single problem. always get +500mb/s read +300mb/s write. I've written 2.2TB on the drive.
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July 18, 2013 7:44:40 AM

So performance wise and MTBF how is this comparable to the 840 Pro series? and which one would be the choice for laptops in Raid 0?
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July 18, 2013 8:55:23 AM

So performance wise and MTBF how is this comparable to the 840 Pro series? and which one would be the choice for laptops in Raid 0?
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July 18, 2013 9:05:06 AM

Marcus52 said:
T...................................................................
The life span of MLC drives hasn't been proven, but even its comparatively low numbers on paper means most consumers will have no problems with the drive losing capability in a build's lifetime.


Actually it has been proven. At least 34nm and 25nm class MLC SSDs.
http://www.xtremesystems.org/forums/showthread.php?2710...
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a b G Storage
July 18, 2013 10:40:14 AM

I'd love to see this take on the upcoming Plextor m6.
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July 18, 2013 12:16:11 PM

The price should be lower to reflect the lower quality and cheaper TLC (vs MLC) components utilized. Only use TLC if you don't mind randomly losing data once in awhile which gets worse over time. It is ok for storing music, pics you don't mind losing etc hence a lo end consumer drive..
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July 18, 2013 1:37:34 PM

TLC Shouldn't just "lose data" but it has less write life then you would hope. I don't think saving $10-15 is worth having a drive that lasts 1/3 as long.
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July 18, 2013 2:38:33 PM

The same thing as with CPU's smaller production nodes are not any more cheaper than previous, nor faster... You get smaller energy usage in most cases. That is goog for mobile devises, but in desktop usage we are guite near where SSD can be. In long run smaller production node offer better result to manufacturer, but development is getting harder and harder so R&D cost are keeping prices high.
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July 18, 2013 8:52:08 PM

The current 840 vanilla is TLC, as others have mentioned. It has no problems, and in fact is a really excellent entry-level SSD. It's stable and very well rounded, and the EVO looks to continue that trend. Good quality TLC is fine for a consumer drive.

If it was low-grade TLC, with a poor controller and bad firmware, by a company that doesn't know what they're doing, that would be a different story. But the Samsung 840 series (and older 830) are good across the board. The Pro is much better for really demanding workloads, but for your typical consumer (content consumption, including gaming) PC? Even the TLC 840 models are fantastic.
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September 25, 2013 10:28:39 AM

3 bit = TLC
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September 25, 2013 11:07:49 AM

smeezekitty said:
3 bit = TLC


Thanks smeezekitty. I didn't realize that TLC was 3-bit MLC.
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