KVR Audio

Amelia70 · Post by **Amelia70** » Tue Dec 24, 2019 11:06 pm

Shabdahbriah wrote: Tue Dec 24, 2019 9:53 pm
Amelia70 wrote: Tue Dec 24, 2019 9:35 pm Why is a particular NAND of importance? Isn't the most important part the read/write speeds of the device, and the durability for how many times it can be written over?
I am just curious, not trying to berate you in any way. I am hoping you can help me understand why i'd choose SLC over MLC or TLC.
I know MLC used to be preferable to TLC but TLC caught up.
https://www.howtogeek.com/444787/multi- ... c-and-mlc/

Thank you kindly.

jonljacobi · Post by **jonljacobi** » Tue Dec 24, 2019 11:16 pm

Yes, the 970 Pro is MLC. Forgot about that Stamp. Sorry. It's been a while.

TLC, written as TLC is still slower, but the vendors have learned how to work around it with caching. It just takes a lot longer to write three or four bits as opposed to two or one. Hence, when they write only one or two bits to TLC or QLC, it's nearly as fast as true SLC or MLC. Then they later rewrite/consolidate it as 3 bits per cell (or 4 for QLC).

As I said, the wear-leveling and over-provisioning have rendered the endurance discussion moot. Unless you're running in a server under constant load, you'll likely never hit the TBW ratings of even a bargain drive. I've run endurance tests on 600TBW/1TB drives up to one petabyte and they still functioned perfectly. And remember that it's only writes that count, not reads. Most people just don't write that much data, even accounting for the operating system. If you're really worried about it, some of the vendors utilities allow you to increase the over-provisioning (lowering the usable capacity).

I'm not saying not to buy an expensive drive, you get a better warranty and generally more consistent performance across all scenarios, but you're paying a lot for relatively little gain.

stamp · Post by **stamp** » Wed Dec 25, 2019 12:23 am

Yeah, probably I shouldn't worry. Was just curious since I want to buy an ssd to replace my 1tb spinning drive. Maybe i will just get another Samsung PM981; it's just as fast as the 970Pro, has the same phoenix controller, but is cheaper than the Pro since it's an oem version and is tlc.

tooneba · Post by **tooneba** » Wed Dec 25, 2019 1:18 am

There are high TBW ssd manufactured by for example Corsair and Silicon power, which aren’t as expensive as Samsung’s.

Amelia70 · Post by **Amelia70** » Wed Dec 25, 2019 3:07 am

LOL I love this place. I have been lurking here for years prior to joining. It is the only place I visit where one topic can turn into anything else!

jonljacobi · Post by **jonljacobi** » Wed Dec 25, 2019 1:22 pm

It’s magical! LOL.

Pictus · Post by **Pictus** » Sat Dec 28, 2019 1:46 am

Jim Roseberry wrote: Wed Dec 18, 2019 1:43 pm I've got a 3970x and will pickup an ASRock X570 motherboard today.
I'll do a build with Thunderbolt-3 and will provide figures.

The 3970x is a Threadripper, I guess you got the AMD Ryzen 9 3950X.

Interesting, for the new Threadripper only the Gigabyte line
https://www.gigabyte.com/Motherboard/AMD-Socket-sTRX4
have Thunderbolt header, the ASRock does not...
But for Ryzen is only the ASRock X570 line that have TB/header, the
Gigabyte does not...

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jonljacobi wrote: Tue Dec 24, 2019 9:42 pm SLC = Single Level Cell/1-bit, MLC = Multi Level Cell/2-bit, TLC = Triple Level Cell/3-bit, QLC = Quad Level Cell/4-bit. You won't find many real SLC or MLC drives anymore. Nearly all of the top drives use TLC, but treat it as SLC or MLC as necessary to reach the performance and durability levels they want (and charge for). I know of one MLC that may still be available from Micron but it's SATA 2.5-inch. I'm not sure if they're even fabbing SLC or MLC anymore, but if they are, it's for enterprise/data center and very expensive.

To have an idea about SSD endurance check https://3dnews.ru/938764/page-3.html

stamp · Post by **stamp** » Sat Dec 28, 2019 1:59 am

Pictus wrote: Sat Dec 28, 2019 1:46 am
To have an idea about SSD endurance check https://3dnews.ru/938764/page-3.html

Can you please tell us what this numbers mean?
Not everyone here speaks russian. Thanks!

Pictus · Post by **Pictus** » Sat Dec 28, 2019 2:18 am

stamp wrote: Sat Dec 28, 2019 1:59 am Can you please tell us what this numbers mean?
Not everyone here speaks russian. Thanks!

"Terabytes written before failure"
https://www.enterprisestorageforum.com/ ... espan.html

dermage · Post by **dermage** » Sat Dec 28, 2019 2:54 am

A new rumor came up:
https://wccftech.com/amd-zen-3-ryzen-40 ... ain-rumor/
Truth or not, I'll jump on Ryzen 3

They'll surpass Intel single core for sure.

tooneba · Post by **tooneba** » Sat Dec 28, 2019 4:51 am

B550 motherboard is awaited... $200 M/B with TB is needed to destroy the darkside

jonljacobi · Post by **jonljacobi** » Sat Dec 28, 2019 1:46 pm

Thanks. Some of the larger NAND numbers are slightly surprising but again, most people don’t write nearly as much data as they think they do.

Is there any host sequencer on Windows that can effectively use 32 cores/64 logical cores?