Samsung 870 EVO MZ-77E500BW 500 GB

UA

Reference SSD

The Evo series from Samsung includes quite expensive, high-quality, reliable and record-breaking fast SSDs, which subsequently set the fashion in the storage market. In general, almost like an iPhone. With the popularization of fast NVMe drives, Samsung has found itself in an interesting position where old-format SATA SSDs need to be brought up to their level and at the same time constantly looking at the price. With the 850 EVO the focus failed, the next 860 EVO was a return to the roots, well, the new 870 EVO can be called a step forward.

Built on Samsung's 128-layer TLC 3D V-NAND memory

The main improvement concerned the memory itself. If the first revisions of the 860 EVO used the classic 64-layer TLC memory, then its follower uses the brand new 128-layer TLC 3D V-NAND memory from Samsung. As expected, the controller has also changed - instead of the past MJX, the novelty is its modification MKX Metis, which we have already seen in the 870 QVO model. To speed up write operations in the drive, a combined SLC caching technology called Turbo Write is used, which, if necessary, adds gigabytes of dynamically allocated TLC memory to the fixed SLC cache.

Significantly improved unbuffered read speed

The predecessor Samsung 860 EVO will help us to test the Samsung 870 EVO in fact, which, according to the passport, provided the same speeds in the region of 530 – 560 MB / s. The first thing to note is the massively improved unbuffered random read speed, which smooths out the difference between SATA and M.2 SSDs. This in itself is a claim to success. But more importantly, we never managed to "load" the disk with work, causing it to slow down. All the time of the tests, the speed indicators practically did not change. Throw in an official five-year warranty, spice it up with a solid 300 TB failure time, and you get almost the best option for cases where, for one reason or another, it is impossible to use an NVMe SSD. Still, we are talking about a truly flagship product with the highest workmanship, which is rare for today's SATA SSDs.