Sunday, August 30th 2020
Samsung 980 PRO NVMe SSD Uses TLC NAND Flash with Half the Endurance of 970 PRO: Product Page
Samsung's hotly anticipated 980 PRO M.2 NVMe flagship client-segment SSD is the company's first "PRO" branded SSD to feature TLC NAND flash memory, breaking from a unique tradition of using MLC (2 bits per cell) NAND flash. Product pages of the drive went live, and its specifications clearly state the use of "Samsung V-NAND 3-bit MLC," which is another way of saying TLC. "MLC" generally referred to as NAND flash memory that stores 2 bits per cell, even through the term "Multi-level" is amorphous.
The product page lists other juicy specs of Samsung's first M.2 NVMe client SSD that takes advantage of PCI-Express gen 4. The drive uses Samsung's in-house design "Elpis" controller, which uses NVMe 1.3 protocol over PCI-Express 4.0 x4, and an LPDDR4 DRAM cache. The 980 PRO comes in capacities of up to 1 TB, with up to 1 GB of DRAM cache. Samsung rates the 1 TB version as capable of up to 7000 MB/s sequential reads, up to 5000 MB/s sequential writes, and up to 1 million IOPS 4K random reads/writes at QD32. The use of TLC impacts endurance adversely in comparison to that of the drive's immediate predecessor, the 970 PRO, with the 1 TB 980 PRO warranty covering only up to 600 TBW, in comparison to 1200 TBW of the 970 PRO 1 TB, and the 500 GB 980 PRO offering just 300 TBW warranty coverage in comparison to 600 TBW of the 970 PRO 512 GB.
Source:
th3typh00n (Reddit)
The product page lists other juicy specs of Samsung's first M.2 NVMe client SSD that takes advantage of PCI-Express gen 4. The drive uses Samsung's in-house design "Elpis" controller, which uses NVMe 1.3 protocol over PCI-Express 4.0 x4, and an LPDDR4 DRAM cache. The 980 PRO comes in capacities of up to 1 TB, with up to 1 GB of DRAM cache. Samsung rates the 1 TB version as capable of up to 7000 MB/s sequential reads, up to 5000 MB/s sequential writes, and up to 1 million IOPS 4K random reads/writes at QD32. The use of TLC impacts endurance adversely in comparison to that of the drive's immediate predecessor, the 970 PRO, with the 1 TB 980 PRO warranty covering only up to 600 TBW, in comparison to 1200 TBW of the 970 PRO 1 TB, and the 500 GB 980 PRO offering just 300 TBW warranty coverage in comparison to 600 TBW of the 970 PRO 512 GB.
81 Comments on Samsung 980 PRO NVMe SSD Uses TLC NAND Flash with Half the Endurance of 970 PRO: Product Page
I really want a Phison E18 drive, should see that much cheaper and now that Samsung also uses TLC I don't see any reason to pay any premium at all for Samsung.
MLC is Multi Level Cell. For some reason, people decided to get cute with the naming after that. Multi-level and the # of bits is a perfectly reasonable definition, IMO, and it is one Samsung has used for a while (long enough for me to remember people griping about it in the past, too). TLC ended up working as a name. Next we have QLC for Quad. Cannot use Q for Quint, so... what? PLC for Penta? What happens with 6? No quick escape though latin anymore, and SLC is already long taken. 7 has the exact same problem. 8, we can go with O, a wonderful letter to use in the computing world, where nobody will ever confuse it with 0 or misread it for Q.
#-bit MLC is perfectly descriptive and avoids the mess of randomly sorting through languages to find an unused calque to salvage a letter from. If that's too silly, then 1LC, 2LC, 3LC, 4LC is just as definitive and still works as an initialism.
But naming schemes are usually built on piles of "I'm already used to it being this way" and "things were better back then, when we named it. I'm keeping the old name" so any chance of fixing it is basically out the window. Hopefully, by the time PLC rolls around, nobody outside of the actual R&D engineers will care about the differences between different voltage levels.
I prefer Samsung's naming method as it makes it very clear what you are getting.
My budget TLC Phison e12 SSD (and most other e12 drives) is rated for 1600TBW for the 1TB model, higher than the 970 "PRO" and much higher than the 980 "PRO". Don't pros want reliability?
The Corsair MP600 1TB drive i'm using is 1,800 TBW and also uses TLC with Phison E16.
Now i'm curious to see what the updated Phison E18 will do which I believe comes out towards the end of the year.
Are they going to make the Pro model cheaper because... Oh hell, what am I thinking? They wouldn't do that. That would make too much sense. Silly me. :laugh:
Lets hope i'm wrong.
It really was better in the old days, I think we will be saying that a lot in tech in the near future.