SAMSUNG 870 EVO REVIEW: TLC MEMORIES FOR MAXIMUM DURABILITY
Are SATA SSDs on Sunset Boulevard? Absolutely not, although the M.2 NVMe models on PCIe interface offer significantly higher performance, memory units with SATA interface are still very popular and indeed, they are progressively changing the scope of use. Until a few years ago they were used as main memories in which to install Windows, but today, thanks to the progressive lowering of prices, they are increasingly used Over time, and with the ever lower costs of NAND memories, SATA SSDs could replace disks. mechanical, now too slow for the needs of those who have to move and save many TB of data. That's why Samsung continues to update and improve them, creating products with ever greater storage capacities and with a longer life span. as backup units or for storing large amounts of data . techwadia
The new Samsung 870 EVO must be framed in this direction ,
since it uses the faster and more durable TLC memories, instead of the cheaper
QLC of the 870 QVO variant. .
A mature technology
Expecting substantial improvements in the evolution of SATA
SSDs is impossible. This interface has very specific limits in terms of
transfer speed, already widely reached and exceeded by SSDs on PCIe interface,
as we have seen in the review of the Samsung 980 Pro . With the 870 EVO range,
however, Samsung wants to push the performance and duration of memory over time
to the maximum, thanks to the use of sixth generation 128-layer V-NAND TLC
memories , available in sizes from 250 - 500 GB or 1, 2 , 4 TB, paired with a
MKX controller. All the new variants are guaranteed for 5 years , against the 3
years of many SSDs on the market, precisely due to the higher quality of the
memories used.
The range is equipped with dedicated LPDDR4 memory, which
acts as a cache and allows performance to remain high during I / O operations.
The model we tested, from 500 GB, has 512 MB, but they go up to 1 GB for the 1
TB variant and 2 and 4 GB for the 2 and 4 TB denominations, respectively.
These features allow the SSD not to go into trouble even
when transferring large amounts of data, obviously up to a certain point, large
files can significantly lower performance, but in general in everyday use it is
difficult to saturate this. 870 EVO. Samsung declares a sequential read
capacity of 560 MB / s, while writing should reach 530 MB / s, values that we
were unable to reach in our tests, carried out on a PC consisting of Ryzen
5950X, ROG Hero VIII Wi motherboard. -FI and 16 GB of RAM at 3600 MHz.
Both with CrystalDiskMark and ATTO Benchmark we remained
below the declared values, but it is impossible to replicate the test
conditions in which Samsung has tested its SSDs, just a small difference in the
test methodology and the speed peaks, which can only be obtained, are not
reached under certain conditions. The values that we have detected still remain
at the top of the category, obviously the limit remains the SATA interface ,
which does not allow you to push performance to higher levels.
