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.
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.